Economic Observation Network Stock index futures closed at noon, with all major contracts closing higher. The main contract of CSI 300 Index Futures (IF) rose 1.92%, the main contract of SSE 50 Index Futures (IH) rose 2.04%, the main contract of CSI 500 Index Futures (IC) rose 2.77%, and the main contract of CSI 1000 Index Futures (IM) rose 1.65%.