【期货热点追踪】投机者看空情绪浓厚，美玉米期货净空头头寸创九个月新高，市场预期供应过剩还是短缺？美国生物燃料市场负面情绪如何影响油脂期货？

Group 1 - Speculators exhibit strong bearish sentiment, with net short positions in U.S. corn futures reaching a nine-month high [1] - Market expectations are divided on whether there will be a supply surplus or shortage [1] - Negative sentiment in the U.S. biofuel market is impacting oilseed futures [1]