It is possible that large speculators began to take profits. This could cause a wave of liquidation positions small speculnt. But this is one of the assumptions. In fact, there can be many reasons and it is quite possible that this may be a complex of different factors. Do not pay much attention to intraday falls. It is better to pay attention to the situation as a whole. While the market is bullish, and the data falls can be seen as an opportunity to enter the market at a lower price.