Corn Commitments of Traders: Week Ending August 14, 2026

Executive summary

This week's report reveals a significant bearish shift among speculators, even as overall market participation declined. Managed Money's net long position was cut to +125,875 contracts, driven by a substantial increase in fresh short positions (+22,058 contracts). This speculative selling occurred alongside a major drop in total open interest, which fell by 78,508 contracts, indicating broad-based position liquidation. Commercial hedgers slightly reduced their massive net short position to -525,668 contracts, suggesting a minor decrease in producer selling pressure. This build-up of speculative shorts occurred during a week of sideways price action, just before a sharp rally into the end of the week, putting these new bearish bets immediately under pressure.

Positioning

• Managed Money: The speculative net long position stands at +125,875 contracts (312,829 long vs. 186,954 short). This is a notable decrease from last week's +144,821 net long and is well off the highs seen in March of this year, which were closer to +200,000 contracts.
• Producer/Merchant (Commercials): Commercials remain heavily net short at -525,668 contracts (335,547 long vs. 861,215 short). This is a historically large hedge, indicating producers and users are well-protected against a price decline, although they did slightly reduce this position from last week's -536,199 contracts.
• Swap Dealers: This group holds a large net long of +327,540 contracts, acting as the primary counterparty to the commercial short hedges.

Flows and week-over-week changes

• Managed Money: The primary driver of the week's activity. While longs edged up by a minor +3,112 contracts, shorts surged by +22,058 contracts. This resulted in net selling of 18,946 contracts and a clear increase in bearish sentiment from this key group.
• Producer/Merchant: Commercials were net buyers during the week. They added +8,432 long contracts while cutting -2,099 short contracts, leading to a net position change of +10,531 contracts.
• Overall Market: The most significant change was the collapse in open interest, which fell by a substantial 78,508 contracts. This suggests that the speculative shorting occurred within a broader trend of traders exiting the market and closing existing positions.

Commercials vs speculators

The classic positioning divergence persists, with commercials holding a large net short and speculators (Managed Money) holding a net long. However, the gap narrowed this week. The sharp increase in speculative shorts suggests that money managers grew more cautious or outright bearish at current price levels. Conversely, the modest net buying from commercials indicates they saw value and slightly reduced their price hedges during the reporting period.

Open interest and participation

• Total open interest in Corn futures fell to 1,684,065 contracts. The week-over-week decline of 78,508 contracts is substantial and points to a significant reduction in overall market engagement.
• Concentration ratios remain moderate. The four largest traders account for 10.1% of long positions and 10.3% of short positions. The eight largest traders control 16.9% and 16.1%, respectively. This does not suggest an overly crowded trade among the largest participants.

Price context

This report's positions are as of the close on Tuesday, August 11, 2026. - During the reporting week (Wednesday, August 5th to Tuesday, August 11th), the front-month ZC contract traded in a narrow, sideways range, closing at 437.0 on the 11th. - The aggressive build in Managed Money short positions coincided with this period of stagnant pricing. - Critically, in the days following the data collection (August 12-14), the market rallied sharply, with the price closing the week at 459.25. This move higher likely caught the new wave of speculative shorts offside.

Risks and watchpoints

• Short Squeeze Risk: The +22,058 new short contracts from Managed Money were established just before a strong price rally. If prices continue to climb, these positions are at immediate risk of being stopped out, which could force a wave of buying that would add further fuel to the rally.
• Open Interest: The sharp decline in open interest signals a lack of conviction. A reversal of this trend, with OI beginning to build again, would be a key indicator of new money entering the market and could signal the start of a more sustainable trend.
• Commercial Buffer: The immense commercial net short position provides a significant buffer. While it shows producers are well-hedged, it also means a large pool of potential buyers exists on price dips, as commercials would buy back contracts to lift their hedges. This could limit downside potential in the near term.