From mid-December 2017 to January 31, 2018, there existed divergence between price and volume (see the yellow line), suggesting a reversal from the top. During the following 1-3 days, the short-term support should sit at the low 2,697 of the previous 3 days; if the price breaks down, there will be another drop. The short-term resistance is the small gap around 2,810. The long-term resistance is the large gap around 2,850.