Aggressive HFT quickly process news and respond in real-time to information. As a result, tracking the differences in the % of volume initiated by the aggressive HFT buyers vs. sellers may be highly indicative of the impending price direction. Earlier today, at 3:30 PM, most
Intraday aggressive HFT index predicts direction of the price change. Today was not a great day for AT&T (NYSE:T). Aggressive HFT participated in sell-off way before the market started falling down, as the Figure shows.