Trade Date Contract Benchmark Price AM Benchmark Price PM 20260818SHAU953.79953.88 20260817SHAU951.8952.98 20260814SHAU936.17940.03 20260813SHAU956.44950.18 20260812SHAU955.49955.85 20260811SHAU961.33946.95 20260810SHAU938.76945.22