S&P 500 is showing signs of institutional buying: Buy Imbalance reaches +$608.6 million
Following the Big Money in S&P 500 Stocks
So far in trading today, the S&P 500 ETF is up 0.5%. SPY stock last traded at $661.30. Large volume bursts in S&P 500 stocks reached 43.0 million shares worth a total of $6.0 billion in transactions. There was notable buy pressure in the Consumer Discretionary and Financial sectors. Overall, buy volume pressure outpaced sell volume pressure by a 1.2 to 1 ratio. There were 119 stocks that had more buy pressure on balance, and 103 stocks that had more sell pressure from large institutions. As a whole, there was a net positive +$608.6 million in dollar volume trades. A greater amount of the trading volume occurred on lit exchanges, at 61.6%, compared with 38.4% being transacted in the dark pool. To learn more about large volume trades, check out our help section.
Daily Chart: Large Volume Bursts Over Time
As you can see from the chart below, the most recent cumulative buy imbalance is +$608.6 million, however, the peak buy imbalance for the day occurred at 1:45 PM, when the net buy dollar volume was +$615.3 million. The lowest cumulative sell imbalance occurred at 10:30 AM, when the net sell reached -$90.1 million. The largest spike in imbalance came between 12:15 PM and 12:30 PM when the buy pressure outweighed the sell pressure by a 13.7 to 1 ratio.
Flow by Sector
Technology experienced the most dollar volume bursts of all the SPDR sectors, with buy dollar volume exceeding sell dollar volume by $56.7 million. 22 of the Technology stocks had positive dollar balance, versus 19 that were net negative.
Individual Stocks
F stock had the single biggest volume burst activity of all the S&P 500 stocks. Buy volume bursts exceeded sell volume by 4.0 million shares. As of this afternoon, the average purchase price on buy volume was $12.02. The stock has gained $0.38, indicating strength following the trade.

