Corn Commitments of Traders Analysis — Week Ended October 9, 2026

Executive summary

The CFTC Disaggregated Commitments of Traders report for Corn (traded under ZC) for the week ending October 9, 2026, shows a continued unwinding of speculative length alongside heavy commercial hedging.

• Managed Money Net Long Contracts: Decreased by 51,381 contracts week-over-week (WoW) to +329,839 contracts (393,249 long vs. 63,410 short), driven primarily by long liquidation (-46,594 contracts). This extends the pullback from late August and early September peaks, when net length exceeded +414,000 contracts.
• Commercial Hedgers: Producer/Merchant participants reduced their net short exposure by 44,608 contracts WoW to -688,377 contracts (362,038 long vs. 1,050,415 short).
• Price Performance: Front-month futures closed at $480.50/bu on October 9, down $16.75 from the previous week's close of $497.25, marking a sharp decline from September highs above $545.00/bu.
• Market Structure: Total open interest grew modestly by 2,676 contracts to 1,859,993 contracts, suggesting ongoing rotation rather than broad capital exit.

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Positioning (net, extremes vs recent weeks)

Managed money net positioning continues to retrace from cycle highs set earlier in the quarter:

• Managed Money Net Position: Stands at +329,839 contracts (393,249 long vs. 63,410 short).
  • This marks a continuation of net length liquidation since the September 11, 2026 peak of +414,459 contracts (491,034 long vs. 76,575 short).
  • Despite four consecutive weeks of trimming, net length remains substantially higher than early 2026 levels (e.g., January 16, 2026, when managed money held a net short position of -90,658 contracts).
• Producer/Merchant Net Position: Stands at -688,377 contracts (362,038 long vs. 1,050,415 short).
  • This is an easing of commercial short exposure compared to late September (reaching -773,483 net short on September 25, 2026), but still reflects active producer hedging relative to winter levels (around -233,812 net short on December 23, 2025).
• Swap Dealers Net Position: Sits at +277,425 contracts (307,708 long vs. 30,283 short), down from peak net length above +340,000 contracts observed in late August.
• Other Reportables Net Position: Sits at +122,634 contracts (188,462 long vs. 65,828 short).
• Nonreportable (Retail): Net short at -41,521 contracts (140,770 long vs. 182,291 short).

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Flows and week-over-week changes

Position adjustments during the reporting week ending October 9, 2026:

Category	Long Change	Short Change	Spreading Change	Net Impact
Managed Money	-46,594	+4,787	-2,752	-51,381 (Bearish)
Producer/Merchant	+12,709	-31,899	N/A	+44,608 (Bullish)
Swap Dealers	-13,766	-6,714	+8,018	-7,052 (Bearish)
Other Reportables	-4,547	+1,100	+41,889	-5,647 (Bearish)
Nonreportable	+7,719	-11,753	N/A	+19,472 (Bullish)

The weekly shift was dominated by long liquidation from institutional money (-46,594 managed money longs), while commercial entities covered 31,899 short contracts and added 12,709 longs.

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Commercials vs speculators

Positioning across the main trading groups shows contrasting dynamics:

• Speculative De-risking: Managed money cut gross long exposure from 439,843 to 393,249 contracts (-10.6%), while cautiously adding 4,787 shorts. Gross longs represent 21.1% of total open interest, down from 27.2% on September 11.
• Commercial Hedging Retreat: Producer/merchant gross shorts declined by 31,899 to 1,050,415 contracts (accounting for 56.5% of total market open interest). The commercial short side has contracted by 47,515 contracts over the past two reporting periods as cash prices weakened into harvest.
• Spreading Activity: Managed money spreading contracted slightly by 2,752 to 287,623 contracts (15.5% of open interest), whereas Other Reportables expanded spreading significantly (+41,889 contracts to 125,294 contracts).

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Open interest and participation

• Total Open Interest: CBOT Corn open interest increased by 2,676 contracts (+0.14%) to 1,859,993 contracts.
  • Open interest has held in a narrow range around 1.84M–1.86M over the past month, remaining below the summer peak of 1,958,771 contracts reached on June 22, 2026.
• Trader Counts:
  • Total active reporting traders rose by 1 to 867.
  • Managed money long count fell from 110 to 109, while short count edged up from 45 to 46.
  • Producer/merchant participants included 287 longs (up from 272) and 351 shorts (down from 367).
• Concentration Metrics:
  • Top 4 net traders held 8.0% long and 10.0% short of total open interest.
  • Top 8 net traders held 14.0% long and 16.2% short.
  • Gross 8-or-less trader concentration stood at 16.5% long and 18.6% short, reflecting low-to-moderate concentration levels consistent with historical corn contract distributions.

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Price context

Futures price action for ZC shows a decisive downside correction coinciding with the positioning changes:

• Reporting Period Movement:
  • Price on October 2, 2026: $497.25
  • Price on October 9, 2026: $480.50
  • Change: -$16.75 (-3.37%)
• Prior Context:
  • The market set a summer low of $428.75 on June 29, 2026, before staging an extended multi-month rally driven by fund buying, reaching a peak close of $545.50 on September 1, 2026.
  • After holding above $525.00 through September 25 ($528.75), a sharp selloff commenced on September 30 ($501.25), breaking key structural support at $500.00.
  • The drop to $480.50 on October 9 represents the lowest daily settlement since late April 2026 ($479.25 on April 20), confirming that recent fund liquidation has applied sustained downward pressure on prices.

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Risks and watchpoints

• Managed Money Long Overhang: Although managed money has trimmed length, they still hold 393,249 gross long contracts against only 63,410 shorts. A further break below the $470.00–$480.00 band could trigger another round of stop-driven long liquidation.
• Commercial Buying Support: Producer short covering (-31,899 contracts) and net long additions indicate commercials are starting to absorb supply at lower price levels, which may help temper further downside momentum.
• Old vs. Other Crop Spreads: The Disaggregated data shows "Other" (deferred) crop years carry 63,379 managed money longs and 71,577 producer shorts, reflecting calendar spread repositioning heading into northern hemisphere harvest progression.