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Will South Dakota's corn for grain yield per harvested acre for 2026 be above 160 bu/acre?

kalshiEconomics·2026-10-09·view on kalshi ↗
12%
Agent
14%
Market Price
-2.0%
Edge
64%
Confidence
53,604
Volume
1.0c
Spread
113
Days to resolution
12
Markets in event
final rationale
Mean of 5 draws (0.09, 0.09, 0.14, 0.14, 0.14). (0) The question is not resolved. NASS's final 2026 figure comes in the January 2027 Annual Summary, and the resolution-source fetch showed only report listings, no yield figures. (a) About 3.5 months remain, with the November and December surveys and the January final still to come. (b) Status quo is NO: the October 9 Crop Production report, per secondary reporting of the NASS release, raised South Dakota to 151 bu/acre from 145 in September, still 9+ bushels short of the threshold. (c) NO scenario: November and final estimates stay within a few bushels of 151, as is typical. Condition ratings are weak (35% good/excellent, 31% poor/very poor on Oct 4), and this year's drought in western SD caps the upside. (d) YES scenario: the ear-weight-driven upside that produced the largest national October bump since 2004 keeps showing up in South Dakota harvest data. Farmer reports of yields 'better than expected' and DTN's August 159.9 estimate hint the crop could be undercounted, which would push the final above 160. Historical SD revisions from October to final are usually a few bushels (2024: 163 to 164; 2023: about 152 to 152), so a 10-bushel gain would be exceptional. The Kalshi market sits at 14%, up from 8% after the October report. I shade below it because the required revision is outside the typical range. The research also has some internal inconsistencies about the August figure, so I keep modest tail weight rather than going lower.
price vs. prediction
market price agent forecast at t+0
9 follow-ups
1. Planner Opus 5.5 · picks the research tools
Tools chosen: kalshi_direct resolution_source kalshi_related article_search polymarket_related
Planner reasoning
The market resolves on the final 2026 USDA NASS figure for South Dakota corn yield, so kalshi_direct gives the price anchor and resolution_source points to the NASS Crop Production report. The NASS October 2026 Crop Production forecast for SD corn yield is the key fact, so I'm requesting one targeted article_search for it. kalshi_related covers sibling strike thresholds and other states' yield markets, and polymarket_related checks whether the other venue prices anything comparable.
2. Research parallel tool calls + 4 web research loops (Sonnet 5) · read raw by the forecasters
at a glance
RESEARCH DIGEST (built in code: tool summaries and each report's bottom line; the forecasters read the full tool outputs and reports) Tools - kalshi_direct: ## This Market's Kalshi Data **Above 160 bu/acre** (KXSDCORNYIELD-27JAN31-T160) - Current price (probability): 14.00% (live; bid 14% / ask 15%) - Last daily close (2026-10-05): 8.00% - 7-day price change: +9.00% - 30-day price change: -1.00% - Average daily volume: 1578 contracts - Price range: 4.00% - 19.00% - Data points: 16 days - resolution_source: already_resolved=unclear; matches_criteria=False; last_updated=10/09/2026 (latest Crop Production release listed). The fetched pages are NASS navigation/listing pages showing the Crop Production report schedule, including an Oct 09 2026 release, but do not contain the actual South Dakota corn yield figures for 2026. - kalshi_related: 0 related markets / summaries. series KXSDCORNYIELD: 0 markets (skipped 12 no-signal) | series KXCORNYIELD: 0 markets (skipped 0 no-signal) | keyword 'corn yield': no matches - article_search: Fetched 8 unique articles across 1 queries (lookback=45d). 'USDA October 2026 Crop Production South Dakota corn yield forecast bushels per acre': 8 articles - polymarket_related: Polymarket search over 1 keyword(s), kept 0 matches. keyword 'corn yield': 0 markets Research loops, bottom lines - current state: As of the October 9, 2026 USDA NASS Crop Production report — the most recent official data point — South Dakota's 2026 corn yield forecast stands at 151 bu/acre, well below the 160 bu/acre threshold; while USDA revised the number upward from September's 145, it would need an unusually large additional upward revision (9+ bushels) in the November, December, or final January Annual Summary reports to clear 160. - base rate: The reference class shows South Dakota has only twice (2024: 164, 2025: 171) ever recorded a corn yield above 160 bu/acre, both occurring in a recent high-yield streak; most other recent years (2022: ~132, 2023: 152) fell short. The most current USDA NASS forecast (October 9, 2026) puts 2026 yield at 151 bu/acre — below the 160 threshold — and historical August/October-to-final forecast error is typically small (roughly ±0.3 to 2.2 bu/acre on average), making an upward revision past 160 by the J - yes case: The clearest YES path is a repeat of the October 9 pattern — USDA's own survey process just delivered an unexpectedly large (+6 bu) upward revision driven by ear-weight gains with harvest still incomplete and condition ratings improving, and farmers on the ground are reporting yields "better than expected"; if that ear-weight-driven upside persists through the November and final January surveys the way it did in 2023-24 (cumulative +7 to +9 bu moves from an interim estimate to final), South Dako - no case: Every concrete, dated data point since August — the October 9 forecast of 151 bu/acre, persistently mediocre crop-condition ratings through early October, slow harvest progress, and the modest typical size of October-to-final revisions — points to a 2026 South Dakota corn yield finishing below 160 bu/acre; clearing the threshold would require an unusually large (9+ bushel) late-season upward revision that has no clear precedent-sized analog in the cited historical track record for this specific
tools
toolstatustimeitemssummary
kalshi_direct OK 0.2s 1 ## This Market's Kalshi Data **Above 160 bu/acre** (KXSDCORNYIELD-27JAN31-T160) - Current price (probability): 14.00% (live; bid 14% / ask 15%) - Last daily close (2026-10-05): 8.00% - 7-day price change: +9.00% - 30-day price change: -1.00% - Average daily volume: 1578 contracts - Price range: 4.0
resolution_source OK 3.4s 1 already_resolved=unclear; matches_criteria=False; last_updated=10/09/2026 (latest Crop Production release listed). The fetched pages are NASS navigation/listing pages showing the Crop Production report schedule, including an Oct 09 2026 release, but do not contain the actual South Dakota corn yield
kalshi_related OK 3.0s 0 0 related markets / summaries. series KXSDCORNYIELD: 0 markets (skipped 12 no-signal) | series KXCORNYIELD: 0 markets (skipped 0 no-signal) | keyword 'corn yield': no matches
article_search OK 0.3s 8 Fetched 8 unique articles across 1 queries (lookback=45d). 'USDA October 2026 Crop Production South Dakota corn yield forecast bushels per acre': 8 articles
polymarket_related OK 0.5s 0 Polymarket search over 1 keyword(s), kept 0 matches. keyword 'corn yield': 0 markets
research loops · 4/4 ok · 16 searches · 5 page reads
dimensionstatustimesearchespage readsreport
current state OK 30s 4 1 4005 chars
base rate OK 38s 3 1 4709 chars
yes case OK 67s 4 1 6256 chars
no case OK 56s 5 2 5885 chars
report: current state
- [2026-08-12] USDA's August Crop Production report forecast South Dakota's 2026 corn yield at 171.0 bushels per acre in 2025, down to 151.0 bushels per acre forecast for 2026 , based on August 1 conditions. - [2026-09-11] USDA's September Crop Production report lowered the South Dakota 2026 corn yield forecast to 145.0 bushels per acre, down from the August forecast of 151.0 and the 2025 final of 171.0 , with harvested acreage near 5.84 million acres. - [2026-09-11] Nationally, NASS's first objective-yield-based forecast for the 2026 corn crop was revised down 2.2 bushels per acre to 178.5 (down 1 percent), with harvested area forecast down 86,000 acres to 88.5 million acres . - [2026-09-24] USDA NASS reported South Dakota's corn-dented progress and crop condition ratings in decline versus the prior year, with condition scores showing meaningfully more acreage rated poor/very poor compared to 2025 at the same point in the season (24% good/excellent combined for condition ratings in late Sept vs higher shares in prior weeks), as tracked in the Crop Progress report. - [2026-10-09] USDA's October Crop Production report, released today, raised the national 2026 corn yield estimate sharply: NASS put the 2026 national average at 181.2 bushels per acre, up 2.7 bushels from September's 178.5, lifting production 234 million bushels to 16.034 billion . - [2026-10-09] For South Dakota specifically, the October report raised the state's corn yield forecast to 151 bushels per acre, up 6 bushels from the September estimate of 145, per reporting that Nebraska jumped 11 bushels to 188, South Dakota rose 6 to 151 and Kansas gained 4 to 125 . - [2026-10-09] The upward revision nationally was driven by ear weight gains rather than ear counts: the objective-yield data show the gain came from ear weight, not ear count, as the 10-state ear count was essentially flat... while the 10-state objective yield moved up sharply, with 60% of October lab samples mature . - [2026-10-09] NASS's confidence interval for the national crop reflects remaining uncertainty: NASS's 90% confidence band puts final corn production between 15.5 and 16.6 billion bushels , implying some chance of further revisions by state in subsequent reports. - [2025-01-10] For context on the prior (2024) crop year, South Dakota recorded a record high yield of 164 bushels per acre, up 12 bushels from 2023 in the final Annual Crop Production Summary — illustrating that SD yields have exceeded 160 bu/acre in some recent years but the current 2026 trajectory (151 bu/acre as of October) sits well below that threshold. - [2026-10-01] As of September 1 conditions reported in September, South Dakota harvested acreage for grain corn was estimated near 5.84 million acres, versus 6.35 million in 2025, reflecting reduced area alongside the lower yield forecast. - [2026-01-12] The final 2025 South Dakota corn yield (per the January 2026 Annual Summary / state overview) was 171 bushels per acre, the benchmark against which the sharp 2026 decline (to 151 as of October) is measured. BOTTOM LINE: As of the October 9, 2026 USDA NASS Crop Production report — the most recent official data point — South Dakota's 2026 corn yield forecast stands at 151 bu/acre, well below the 160 bu/acre threshold; while USDA revised the number upward from September's 145, it would need an unusually large additional upward revision (9+ bushels) in the November, December, or final January Annual Summary reports to clear 160. NOT FOUND: The full text/PDF of the October 9, 2026 Crop Production report for South Dakota's exact state-level table could not be directly fetched (site access failed for the primary rrfn.com article and the esmis.nal.usda.gov October PDF link was not located in search results); figures for October rely on secondary reporting (agbull.com) that was itself drawn directly from the NASS Oct. 9 release. No South Dakota-specific NASS Sioux Falls press release for October 2026 was found in search results.
report: base rate
- [2026-10-09] USDA NASS October Crop Production report raised South Dakota's 2026 corn yield forecast to 151 bu/acre, a dramatic change where "At 151 bushels per acre, the latest South Dakota estimate is up six bushels from the September report." This is the most recent official NASS forecast and remains below the 160 bu/acre threshold. - [2026-09-11] The September 2026 Crop Production report had South Dakota's yield at 145 bushels per acre, compared to 151.0 in 2025 , confirming a downward trajectory from 2025's record before October's upward revision. - [2026-08-12] The first survey-based 2026 forecast (August report) put South Dakota corn yield at 160 bu/acre, with harvested area of 5.84 million acres (per the August Crop Production table), already implying a year-over-year decline from 2025's record. - [2026-09-11] Brownfield Ag News reported USDA's national corn yield cut and noted "South Dakota: Corn: 846.8 million bushels, compared to 1.086 billion in 2025; Average Yield: 145 bushels per acre, compared to 151 a month ago and 171 a year ago" , underscoring a steep year-over-year drop being tracked through the season. - [2026-08-12] Independent analytics (DTN Digital Yield Tour) forecast South Dakota corn yield at "DTN 2026: 159.9 bushels per acre (bpa), DTN 2025: 169.2 bpa" , broadly consistent with USDA's declining trend for the state this year. - [2026-08-12] A farmdoc daily econometric model using crop-condition trends found South Dakota had an 80% probability of finishing below its own yield trend line as of early August 2026, consistent with a weaker-than-2025 crop. - [2025-01-10] USDA's final 2024 Annual Summary recorded "Corn for grain production in South Dakota based on year-end surveys is estimated at a record high 884 million bushels...A record high yield of 164 bushels per acre is up 12 bushels from last year. Farmers harvested 5.39 million acres" — the first time SD yield exceeded 160. - [2026 reference, no exact date] South Dakota's statewide corn yield reached a historic high in 2025: "The statewide average yield reached a historic high of 171 bushels per acre in 2025, up 4.3 percent from 164 bushels per acre in 2024." - [2024, year-end] For 2023, the final yield was below 160: USDA's 2023 Annual Summary reported "Corn for grain production in South Dakota based on year-end surveys is estimated at a record high 854 million bushels, up 29% from 2022...Yield of 152 bushels per acre is up 20 bushels from last year. Farmers harvested 5.62 million acres" , meaning 2022's yield was only ~132 bu/acre. - [historical base rate] Based on NASS final annual figures: 2022 ≈132, 2023=152, 2024=164 (record), 2025=171 (record) bu/acre — only the last two of the past four years (2024, 2025) finished above 160 bu/acre; 2026's trajectory per the most recent (October) USDA forecast (151 bu/acre) tracks closer to 2023's sub-160 outcome than to the 2024-2025 records. - [2015 context] Historical SD corn yield base rates were far lower for most of the record before the 2020s surge: an August 2015 USDA report noted "a record yield of 160 bushels per acre for this year's South Dakota corn crop. If realized, this would be up by 12 bushels per acre from last year. The current record of 151 was set in 2009." Crossing 160 bu/acre is a relatively recent phenomenon (first achieved in 2024), not a long-run norm. - [track record of August forecasts vs. final] A South Dakota Corn Growers analysis found that "During the last 5 years, the average difference between the August corn yield estimate and the actual corn yield number in South Dakota was -2.2 bushels per acre... During the last 10 years, the average difference...was -.3 bushels per acre," suggesting August/October forecasts are generally close to final NASS numbers, with only modest average revision. BOTTOM LINE: The reference class shows South Dakota has only twice (2024: 164, 2025: 171) ever recorded a corn yield above 160 bu/acre, both occurring in a recent high-yield streak; most other recent years (2022: ~132, 2023: 152) fell short. The most current USDA NASS forecast (October 9, 2026) puts 2026 yield at 151 bu/acre — below the 160 threshold — and historical August/October-to-final forecast error is typically small (roughly ±0.3 to 2.2 bu/acre on average), making an upward revision past 160 by the January 2027 Annual Summary possible but not the base-rate expectation. NOT FOUND: The exact final 2026 Annual Summary (due ~January 2027) has not yet been published; no official confirmation of final 2026 SD yield exists as of this report. Could not access a full historical SD yield series further back than ~2009-2025 via primary NASS tables in the time available.
report: yes case
YES means: USDA NASS's final 2026 Annual Crop Production Summary (expected ~January 2027) reports South Dakota's 2026 corn-for-grain yield above 160 bu/acre. - [2026-10-09] USDA's October Crop Production report delivered the largest October yield bump nationally since 2004, and for South Dakota specifically it lifted the state corn yield forecast up 6 bushels to 151, with the national gain explicitly "USDA did the one thing the trade had all but ruled out on Friday: it raised the corn yield, and by a lot. NASS put the 2026 national average at 181.2 bushels per acre, up 2.7 bushels from September's 178.5" — showing USDA's own survey-based process can swing sharply in one month, which is the key mechanical path to a further upside surprise in November/January. (https://www.agbull.com/usda-finds-corn-nobody-else-could-october-yield-jump-blindsides-most-of-the-trade/) - [2026-10-09] The same report notes this was "the largest October increase since 2004, with 2014 the closest in between" and that "Nebraska jumped 11 bushels to 188, South Dakota rose 6 to 151 and Kansas gained 4 to 125" — Nebraska's even larger regional jump suggests the western Corn Belt ear-fill surprise was not SD-specific and could extend further as more objective-yield samples mature. (https://www.agbull.com/usda-finds-corn-nobody-else-could-october-yield-jump-blindsides-most-of-the-trade/) - [2026-10-05] NASS's Crop Progress report shows South Dakota corn condition improving into harvest, with good/excellent combined around 35% as of October 4 versus the mid-20s in late September cited by colleagues — a sign the crop firmed up late season rather than deteriorating further. (https://esmis.nal.usda.gov/sites/default/release-files/796095/prog4026.pdf) - [2026-10-07] On-the-ground farmer reporting in Hutchinson County found corn yields of "140 to 150 bushels per acre yield," with the farmer saying "That's better than what I thought it would be" , directly echoing the pattern that preceded the October NASS upward revision. (https://www.yahoo.com/news/science/articles/harvest-gets-underway-those-early-143500869.html) - [2026-10-07] The same report attributes crop resilience to unexpected late-season humidity: "We were lucky with all the humidity. It's good for the corn. I think that helped it hang in there as long as it did" — a mechanism (late moisture aiding grain fill) that could continue adding test weight/bushels into the harvested-area-wide average as more fields are cut. (https://www.yahoo.com/news/science/articles/harvest-gets-underway-those-early-143500869.html) - [~2026-08-10] Independent analysts' DTN Digital Yield Tour pegged South Dakota's 2026 corn yield at "DTN 2026: 159.9 bushels per acre" , essentially at the 160 bu/acre threshold and above the state's own 5-year RMA trendline, giving a non-NASS benchmark much closer to Yes than USDA's subsequent September/October forecasts. (https://www.dtnpf.com/agriculture/web/ag/crops/article/2026/08/12/south-dakota-farmers-expect-average-3) - [2026-08-19] Pro Farmer Crop Tour scouts, despite reporting drought stress overall, still found pockets with corn calculated at "189 bu. and 194 bu. per acre" in southern South Dakota stops, indicating meaningful upside variance within the state that could pull the harvested-area-weighted average higher than USDA's August/September forecasts implied. (https://www.agweb.com/news/dry-fields-stifle-south-dakota-corn-yields-while-ohio-battles-excess-water) - [2026-10-09] Nationally, the October gain was explicitly tied to ear weight rather than ear count, with trade analysts having under-forecast the move (one analyst's model used 175 bu vs. the actual 181.2 national print): "Nesvick Trading Group's Megan Bocken had penciled in a 176.5-bushel corn yield. A DTN analyst said he was personally using 175 bushels" — showing professional models have been consistently too low this cycle, a pattern that, if it persists for South Dakota specifically, favors further upward revisions in November/January over the current 151 bu/acre USDA figure. (https://www.agbull.com/usda-finds-corn-nobody-else-could-october-yield-jump-blindsides-most-of-the-trade/) - [2024 precedent] In the most recent analogous "down-then-up" cycle, South Dakota's corn yield forecast rose through the season from August's 162 to October's 163 to a peak November estimate of 166 bu/acre before settling at a final 164 — demonstrating that NASS's autumn survey cycle for South Dakota has, in a recent record year, continued revising upward well past the October estimate. (https://www.nass.usda.gov/Statistics_by_State/South_Dakota/Publications/Crop_Releases/Crop_Production/2024/SD-croppr2411.pdf) - [2023 precedent] In 2023, South Dakota's forecast climbed from August's 145 to a November estimate of 152 bu/acre, a 7-bushel gain over just three months of survey updates, showing multi-bushel upward trajectories within a single season are not unusual even in years that finish below 160. (https://data.nass.usda.gov/Statistics_by_State/South_Dakota/Publications/Crop_Releases/Crop_Production/2023/SD-croppr2311.pdf) BOTTOM LINE: The clearest YES path is a repeat of the October 9 pattern — USDA's own survey process just delivered an unexpectedly large (+6 bu) upward revision driven by ear-weight gains with harvest still incomplete and condition ratings improving, and farmers on the ground are reporting yields "better than expected"; if that ear-weight-driven upside persists through the November and final January surveys the way it did in 2023-24 (cumulative +7 to +9 bu moves from an interim estimate to final), South Dakota's 151 bu/acre October figure could still climb into the 160+ range by the January 2027 Annual Summary, though this would require an unusually large additional gain beyond typical seasonal revisions. NOT FOUND: The full South Dakota-specific NASS October 9, 2026 press release (Sioux Falls office) was not directly accessible; figures rely on secondary reporting (agbull.com, rrfn.com) drawn from the same NASS release. No November 2026 Crop Production report has been published yet, so no confirmation exists of whether the upward-revision pattern seen in 2023-24 is repeating this year for South Dakota specifically.
report: no case
YES means: USDA NASS's first Crop Production Annual Summary with the final 2026 estimate reports South Dakota's corn-for-grain yield above 160 bu/acre. Given the current trajectory, the real-world outcome needed for NO is that the final figure lands at or below 160 bu/acre — which is where all current data point. - [2026-10-09] The most recent official NASS forecast (October Crop Production report) puts South Dakota 2026 corn yield at 151 bu/acre, confirmed in secondary reporting: "In the state-by-state numbers, USDA made a dramatic change in the South Dakota corn yields. At 151 bushels per acre, the latest South Dakota estimate is up six bushels from the September report." That leaves a 9-bushel gap to clear 160, a gap larger than the October-to-final deviation seen in most historical years. - [2026-10-04] Crop Progress data show South Dakota's corn condition still weak heading into the final stretch: the Oct 4 report rated the crop "12 ... 19 ... 34 ... 32 ... 3" for very poor/poor/fair/good/excellent, meaning only 35% good-to-excellent and 31% poor-to-very-poor — a condition mix inconsistent with the kind of late-season upside surprise that would be needed to push yield 9+ bushels higher. - [2026-10-04] Harvest progress itself was slow, with the dent/harvested percentage data showing South Dakota corn harvested at just "8 ... 11 ... 16" percent week-over-week through early October 2025/2026 comparisons — meaning much of the crop is still in the field and subject to further field loss, lodging, or standability issues from the dry-stalk conditions reported this season, which argues against an upside revision. - [2026-08-24] Three weeks before harvest began, SD condition scores were already mediocre: the Aug 24 Crop Progress report showed "12 ... 17 ... 29 ... 36 ... 6" for very poor/poor/fair/good/excellent (42% good-to-excellent), underscoring that this year's crop never approached the strong condition profile that preceded the 2024 (164 bu) and 2025 (171 bu) records. - [2026-10-07] A mechanistic explanation for the October national upward revision undercuts expectations of a similarly large SD-specific jump: nationally, "NASS has revised its 2026 corn yield forecast down 2.2 bushels per acre to 178.5 (down 1 percent)" in September, and the subsequent October bump (per colleagues' report) was driven by ear-weight gains in mature fields rather than a fundamental reassessment of acreage with poor stands — a mechanism that has already been largely priced into the October 151 figure for SD and leaves less room for a further 9-bushel jump in November/final data. - [2026-10] Historical precedent shows October-to-final swings of this magnitude are uncommon and when they occur they can go either direction: an analysis of "October revisions to the U.S. corn yield forecast, 2006–2025, bushels per acre. No October report was issued in 2013 or 2025" notes that the 2010 season saw a large downward cut from September to October (where "NASS lowered the U.S. yield from 162.5 to 155.8 bushels per acre in October, a 4.1% reduction. Illinois lost 14 bushels from its September forecast; Iowa and Indiana each lost 10" ), illustrating that late-season surprises can cut yields sharply even after ears are counted — a reminder that SD's 151 figure could just as easily be revised down as up. - [2026-10] A sibling Kalshi-style contract for the same underlying series uses a materially lower strike, implying market-makers see real uncertainty but center expectations well under 160: a parallel prediction-market listing frames resolution at a much lower bar, stating "If USDA NASS reports that South Dakota's corn for grain yield per harvested acre for 2026 is above 145 bu/acre, then the market resolves to Yes." The existence of a 145-bu/acre strike (rather than a 165 or 170 strike) signals that market structuring treats 145-160 as the plausible contested range, not 160+. - [2025-11] Last year's analogous November report illustrates how modest late-season revisions typically are in a normal year: the November 2024 Crop Production report showed "Corn Production Down Less Than 1 Percent from October Forecast" nationally — supporting the base-rate expectation that SD's November and final figures will likely stay in a similar single-digit-bushel band around October's 151, not leap 9+ bushels to clear 160. - [2026-09] Acreage and production context reinforces the smaller crop: September data put SD corn production at "South Dakota: Corn: 846.8 million bushels, compared to 1.086 billion in 2025; Average Yield: 145 bushels per acre, compared to 151 a month ago and 171 a year ago; Planted Area: 6.5 million acres, compared to 6.85 million last year; Harvested Area: 5.84 million acres, compared to 6.35 million the year before" — both yield and harvested acreage are down materially from the record 2025 crop, compounding the case for a sub-160 final figure. BOTTOM LINE: Every concrete, dated data point since August — the October 9 forecast of 151 bu/acre, persistently mediocre crop-condition ratings through early October, slow harvest progress, and the modest typical size of October-to-final revisions — points to a 2026 South Dakota corn yield finishing below 160 bu/acre; clearing the threshold would require an unusually large (9+ bushel) late-season upward revision that has no clear precedent-sized analog in the cited historical track record for this specific state this late in the season. NOT FOUND: The full South Dakota-specific state-level October 9, 2026 NASS press release (Sioux Falls office) could not be directly fetched; a complete SD-specific October-to-final revision history (bushel-by-bushel, not just national) was not located in the time available; no confirmation yet exists of the November 2026 Crop Production report figures, which were not within the searchable date range.
3. Forecasters 5 draws · Opus 5.5 + GPT-6 Astra + GPT-5.6 Sol · plain mean
claude-opus-5-5 · high effort
62% conf
Yes 9%
No 91%
(0) The question is not resolved. NASS's final 2026 figure comes in the January 2027 Annual Summary, and the resolution-source fetch showed only report listings, no yield figures. (a) About 3.5 months remain, with the November and December surveys and the January final still to come. (b) Status quo is NO: the October 9 Crop Production report, per secondary reporting of the NASS release, raised South Dakota to 151 bu/acre from 145 in September, still 9+ bushels short of the threshold. (c) NO scenario: November and final estimates stay within a few bushels of 151, as is typical. Condition ratings are weak (35% good/excellent, 31% poor/very poor on Oct 4), and this year's drought in western SD caps the upside. (d) YES scenario: the ear-weight-driven upside that produced the largest national October bump since 2004 keeps showing up in South Dakota harvest data. Farmer reports of yields 'better than expected' and DTN's August 159.9 estimate hint the crop could be undercounted, which would push the final above 160. Historical SD revisions from October to final are usually a few bushels (2024: 163 to 164; 2023: about 152 to 152), so a 10-bushel gain would be exceptional. The Kalshi market sits at 14%, up from 8% after the October report. I shade below it because the required revision is outside the typical range. The research also has some internal inconsistencies about the August figure, so I keep modest tail weight rather than going lower.
claude-opus-5-5 · high effort
70% conf
Yes 9%
No 91%
(0) Not resolved. The resolving figure is the January 2027 Crop Production Annual Summary, which has not been published. The latest official NASS number, from the October 9, 2026 Crop Production report, puts South Dakota's 2026 corn yield at 151 bu/acre, up 6 from September's 145. (a) About three and a half months remain: the November and December reports come first, then the final Annual Summary in January 2027. (b) If nothing changes, the final lands near 151, well below the threshold, so the status quo is No. (c) NO scenario: November and January revisions stay within the usual few-bushel band. SD revisions from October to final were roughly +1 in 2024 and about +0 to +7 from August to final in 2023. With condition ratings only 35% good-to-excellent and the crop drought-stressed, the final settles around 148-156. (d) YES scenario: the ear-weight surprise behind October's large national jump (largest since 2004) keeps going. More objective-yield samples mature, farmers keep reporting 'better than expected' yields, and the January figure reaches 161+. That would take about +10 bu from October, which has little precedent for SD this late in the season. Kalshi trades at 14% after rising from 8%, likely a reaction to October's upward surprise. I think that overstates the odds of a 10-bushel move from October to final, so I shade below the market to about 9%. Some of the October data comes only from secondary reporting, and late-season NASS revisions can be large, so I keep meaningful tail weight on Yes.
gpt-6-astra · high effort
58% conf
Yes 14%
No 86%
The event is not documented as resolved: the retrieved NASS pages contain release listings, not the required first Annual Summary with the final 2026 estimate, expected in January 2027; trading closes January 31, approximately 114 days away. I anchor on Kalshi's live 14% YES price (14% bid/15% ask) and retain it because the research establishes no clear informational edge over that quote. AgBull's October 9 reporting puts South Dakota at 151 bu/acre, up from September's 145; an unchanged estimate in the resolving annual report means No, as does exactly 160, and subsequent revisions cannot change settlement. A NO scenario is harvest results confirming approximately 151 or delivering only modest gains, consistent with October 4 NASS ratings of 35% good/excellent and 31% poor/very poor. A YES scenario requires stronger harvest measurements and ear weights lifting the annual estimate above 160—at least 161 if reported in whole bushels, another 10-bushel increase. October's six-bushel rebound and DTN's August estimate of 159.9 support an upside tail, but the DTN estimate is older and the cited 2024 October-to-final increase was only one bushel. I discount the reports' stronger base-rate claims because signed average revisions do not measure absolute forecast error, and no complete South Dakota October-to-final revision distribution was obtained. The forecast retains material source-error uncertainty, including roughly a 10–15% chance that the unverified October state figure is misstated, since repeated secondary citations are not independent confirmation of the missing official table.
gpt-6-astra · high effort
57% conf
Yes 14%
No 86%
The event is not resolved: the resolution-source read found only NASS report listings, not the qualifying Annual Summary, which is expected in January 2027, roughly three months away and before the trading close approximately 114 days from today. I retain Kalshi's current 14% YES anchor (14% bid, 15% ask), because the research provides no clearly unpriced information warranting a departure. AgBull's October 9 reporting places South Dakota's forecast at 151 bu/acre, up from September's 145; carrying that estimate unchanged into the final report would resolve NO, as would exactly 160. A NO scenario is that remaining harvest surveys confirm drought-related losses and keep the final estimate at or below 160, consistent with October 4 ratings of only 35% good/excellent and 31% poor/very poor. A YES scenario requires an additional increase exceeding nine bushels, with heavier ears or stronger remaining harvested-field results lifting the first final estimate above 160. October's six-bushel increase and reported ear-weight gains support a meaningful upside tail, although DTN's near-threshold August estimate is stale and does not establish that further gains are likely. Confidence is limited because the October state figure was not verified against a primary NASS table, the research contains conflicting August figures, and average signed historical revisions do not establish the size of forecast errors. Only the first qualifying Annual Summary's corn-for-grain yield counts, so preliminary forecasts, actual farm yields, silage yields, and subsequent revisions cannot substitute for the specified resolving figure.
gpt-5.6-sol · high effort
72% conf
Yes 14%
No 86%
(0) The event is not resolved: the NASS pages list the October 9 Crop Production release but do not yet contain the first Annual Summary with the final 2026 estimate, which is required for settlement. (a) Roughly three months remain until the expected January 2027 Annual Summary, with trading closing January 31. (b) If nothing materially changes, the latest reported NASS forecast of 151 bu/acre produces No; because the rule is strictly above 160, an integer-valued final estimate would need to reach at least 161, a 10-bushel increase. (c) The No scenario is that harvest surveys confirm yields near 151, consistent with only 35% of the crop rated good or excellent and with historically modest late-season revisions. (d) The Yes scenario requires October's surprising six-bushel upward revision to continue as heavier ears and better-than-expected harvested fields lift the final estimate by another 10 or more bushels. Kalshi's 14% Yes price already rose following the October surprise, and I retain that anchor because the strong upward revision is offset by the large remaining gap, while uncertainty remains because the 151 figure was available only through secondary reporting rather than a directly fetched state table.
4. Final plain mean of 5 draws
12% (64% confidence)
Yes: 12% No: 88%
Mean of 5 draws (0.09, 0.09, 0.14, 0.14, 0.14). (0) The question is not resolved. NASS's final 2026 figure comes in the January 2027 Annual Summary, and the resolution-source fetch showed only report listings, no yield figures. (a) About 3.5 months remain, with the November and December surveys and the January final still to come. (b) Status quo is NO: the October 9 Crop Production report, per secondary reporting of the NASS release, raised South Dakota to 151 bu/acre from 145 in September, still 9+ bushels short of the threshold. (c) NO scenario: November and final estimates stay within a few bushels of 151, as is typical. Condition ratings are weak (35% good/excellent, 31% poor/very poor on Oct 4), and this year's drought in western SD caps the upside. (d) YES scenario: the ear-weight-driven upside that produced the largest national October bump since 2004 keeps showing up in South Dakota harvest data. Farmer reports of yields 'better than expected' and DTN's August 159.9 estimate hint the crop could be undercounted, which would push the final above 160. Historical SD revisions from October to final are usually a few bushels (2024: 163 to 164; 2023: about 152 to 152), so a 10-bushel gain would be exceptional. The Kalshi market sits at 14%, up from 8% after the October report. I shade below it because the required revision is outside the typical range. The research also has some internal inconsistencies about the August figure, so I keep modest tail weight rather than going lower.
Pipeline Timing
Total pipeline time: 146.6s
Per-tool research timings shown in the Research section above.