The decline in stock index futures widened, with the main contract of the CSI 300 Index Futures (IF) falling 1.36%, the main contract of the SSE 50 Index Futures (IH) falling 1.54%, the main contract of the CSI 500 Index Futures (IC) falling 1.02%, and the main contract of the CSI 1000 Index Futures (IM) falling 0.81%.