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Corn COT — Week of October 16, 2026

Corn COT Report: Week Ended October 16, 2026

Executive summary

The CFTC Commitments of Traders report for Corn (ZC) as of October 16, 2026, highlights an aggressive unwinding of speculative length. Managed Money shed 63,005 gross long contracts while adding 20,409 gross shorts, shrinking their net-long stance by 83,414 contracts to 246,425. This marks a swift pullback from the mid-September peak net-long exposure of 414,460 contracts.

Commercials—specifically Producer/Merchants—absorbed the speculative selling by trimming gross shorts by 44,581 contracts and lifting gross longs by 43,307 contracts, reducing their net short position to 600,489 contracts. Total open interest fell by 14,733 contracts to 1,845,260, confirming that speculative liquidation and commercial short-covering dominated trade flows as front-contract futures slid to 474.25.

Positioning (net, extremes vs recent weeks)

Speculative positioning has rapidly de-risked over the past month after touching year-to-date highs:

  • Managed Money:
    • Gross positions: 330,244 longs, 83,819 shorts, and 288,341 spreading contracts.
    • Net position: +246,425 contracts (17.9% of open interest long vs. 4.5% short).
    • Context & Extremes: Managed money reached a peak net-long position of +414,460 contracts on September 18, 2026 (483,738 longs vs. 69,278 shorts). Current net positioning of +246,425 represents a 40.5% contraction from that peak in just four reporting cycles, hitting the lowest net-long level since early March 2026.
  • Producer/Merchant:
    • Gross positions: 405,345 longs and 1,005,834 shorts.
    • Net position: -600,489 contracts (22.0% long vs. 54.5% short).
    • Context: Commercial net short exposure stood at -770,306 contracts on September 18, 2026. The current net-short level is the least restrictive commercial short hedge since early March 2026.
  • Swap Dealers:
    • Gross positions: 300,384 longs, 26,853 shorts, and 71,490 spreading contracts.
    • Net position: +273,531 contracts (16.3% long vs. 1.5% short), remaining moderately steady after topping 340,000+ contracts net long in mid-summer.
  • Other Reportables & Nonreportable:
    • Other Reportables: Net long 111,942 contracts (181,613 long vs. 69,671 short; 122,448 spreading).
    • Nonreportable (Small Traders): Net short 31,409 contracts (145,395 long vs. 176,804 short).

Flows and week-over-week changes

Speculative capitulation on the long side accelerated during the reporting week:

  • Managed Money: Cut 63,005 long contracts and added 20,409 shorts, while expanding spreading by 718 contracts. This resulted in an aggregate net position swing of -83,414 contracts. Over the past two reporting periods alone, managed money has liquidated 109,599 long contracts.
  • Producer/Merchant: Added 43,307 long contracts and covered 44,581 short contracts, resulting in a net commercial buyback of 87,888 contracts.
  • Swap Dealers: Closed 7,324 longs and 3,430 shorts while establishing 16,641 spreading positions, netting a change of -3,894 contracts.
  • Other Reportables: Trimmed longs by 6,849 contracts and expanded shorts by 3,843 contracts, reducing net length by 10,692 contracts.
  • Nonreportable: Added 4,625 longs and covered 5,487 shorts, shifting net length by +10,112 contracts.

Commercials vs speculators

The structural balance between commercials and financial participants has pivoted from extreme hedging toward active de-leveraging:

Managed Money Net Position:   +246,425 contracts (down from +414,460 on Sept 18)
Producer/Merchant Net Short: -600,489 contracts (covered from -770,306 on Sept 18)
Swap Dealer Net Long:        +273,531 contracts

During the run-up to early September, commercial producers heavily hedged into managed money demand, expanding gross producer shorts past 1.09 million contracts. As managed money initiated broad liquidations over the last four weeks (-153,494 gross longs shed since September 18), commercial accounts stepped in to absorb supply, covering over 92,000 gross short contracts and buying 77,721 gross longs over the same period.

Open interest and participation

  • Total Open Interest: 1,845,260 contracts, a decline of 14,733 contracts (-0.79%) from the prior week's 1,859,993. The drop in open interest alongside a sharp reduction in gross long positions confirms classic long liquidation rather than fresh short selling driving the bulk of the market.
  • Trader Breadth: Total reporting traders stood at 839 (down from 867 the previous week).
    • Managed money long traders dropped from 109 to 94 accounts, while short traders declined from 46 to 41.
    • Producer/Merchant long accounts climbed from 287 to 309, while short accounts held roughly flat at 350 (vs. 351).
  • Concentration Ratios:
    • Top 4 Traders: Account for 7.3% of net longs and 9.3% of net shorts (gross: 10.0% long, 11.1% short).
    • Top 8 Traders: Account for 12.5% of net longs and 15.1% of net shorts (gross: 17.7% long, 19.0% short).
    • Concentration metrics remain dispersed, reflecting broad agricultural and commercial industry engagement rather than singular speculative dominance.

Price context

The price series for front-month Corn futures (ZC) clearly reflects the positioning cycle:

  • Rally Peak: Front futures advanced from the 450–465 range in early 2026 to a summer high of 545.50 on September 1, 2026, holding near 543.00 as late as September 21. This rally coincided with Managed Money expanding their net-long stance past 400,000 contracts.
  • The Break: Prices broke decisively lower in late September, dropping through key psychological thresholds: 522.25 on September 29, 501.25 on September 30, and 480.50 on October 9.
  • Current Level: Between October 9 and October 16, prices slipped from 480.50 down to 474.25, closing at the lows of the week on October 16. The 71.25-cent slide from September 21 to October 16 mirrors the massiveManaged Money liquidation wave.

Risks and watchpoints

  • Pace of Fund Liquidation: Managed money still holds 330,244 gross long contracts. If technical support fails to emerge near current price levels, further long liquidation remains a clear downside risk.
  • Diminishing Commercial Buying Support: Producers covered 44,581 short contracts and bought 43,307 long contracts this week. Should commercial end-users feel sufficiently hedged at current price levels, their buying buffer may subside, leaving the market more sensitive to continued speculative exit.
  • Spreading and Term-Structure Flows: Managed money spreading increased to 288,341 contracts this week, while swap dealer spreading surged by 16,641 contracts to 71,490. Active rolling between old crop (1,703,124 OI) and forward/other contracts (142,136 OI) warrants monitoring on the Corn COT Dashboard for signs of calendar-spread stress.