Big-cap Egyptian stocks led the stock market down on Tuesday as investors locked in profits made in recent sessions, while the cement sector bucked the trend, rising on expectations of strong results, traders said. The benchmark Hermes index fell 2.9 percent, or 920.86 points, to 30,983.96 points. The broader CIBC index, which includes many small stocks, fell 1.5 percent to 133.12 points. "It was the big caps that had the strongest rally so it's not a surprise to see them lead the fall," said Yasser Hassanein of Dynamic Securities. Orascom Telecom (OT), one of the most actively traded stocks on the market, last traded down 15.61 Egyptian pounds ($2.68), or 4.3 percent, at 348.98 pounds. OT hit an all-time high of 379.99 on Jan. 31. MobiNil, also known as the Egyptian Company for Mobile Services and another popular stock, last traded down 8.12 pounds, or 4.9 percent, at 159 pounds. --More 1816 Local Time 1516 GMT