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Corn COT — Week of October 9, 2026

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.

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).

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.

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).

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.

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.

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.