[Stock Index Futures Opening in the Morning Session] The main contract of CSI 300 stock index futures (IF) rose 0.04%, the main contract of SSE 50 stock index futures (IH) rose 0.01%, the main contract of CSI 500 stock index futures (IC) fell 0.33%, and the main contract of CSI 1000 stock index futures (IM) fell 0.23%.