“…Sun [10] and Renault [ 11 ] demonstrated that high-frequency investor sentiment can predict intraday stock returns, and Zhang [12] , Chu [3] , and Li [13] provided strong evidence for intraday time-series momentum in Chinese stock markets. Similarly, Jin [14] observed intraday momentum for four Chinese futures contracts, soybean, copper, steel, and soybean meal; however, Yang [15] showed that intraday strategies in the Chinese commodity futures market could not generate high excess returns due to transaction costs.…”