Last week, we were looking for a potential bottom in corn. Since then, we’ve mostly traded sideways to slightly higher. However, the end of this week brings a “triple-witching” event – the end of the month, the end of the fiscal quarter, and the quarterly grain stocks report all occur on Friday. In last quarter’s grain stocks report, the market sold off fairly sharply as corn stocks were reportedly 54% higher on a year-over-year basis.
The contract’s resilience in defending the lows is very encouraging considering the positioning of managed funds. In the chart below, you can see that managed funds have amassed a substantial short position over the course of the last 6 weeks. As of last Friday’s CFTC Commitments of Traders report, managed funds held 319,079 short positions. Meanwhile, prices have maintained a very tight 15-20 cent trading range.
As such, there is significant fund rebalancing in Friday’s session, it may induce a short-covering rally. What does that mean? In order to exit a short position, the contract holder will have to buy a contract. If there is substantial buying volume, it will press prices higher, and force short-positions to exit ultimately resulting in a rally.

The question then becomes – how high can we go? Considering that the December corn contract was unable to close above 500 a single time in the month of August or September thus far, that may be an ambitious initial target. In order to retest 500, and ultimately our 502-506 ½ 3-star resistance pocket, we will have to surpass 3-star resistance between 489 and 491. If we manage to trade through 491, it could lay the foundation for December corn to surpass 500 once again.