S&P 500 is showing signs of institutional buying: Buy Imbalance hits +$897.8 million
Following the Big Money in S&P 500 Stocks
So far in trading today, the S&P 500 ETF is down 0.6%. SPY stock last traded at $668.46. Large volume bursts in S&P 500 stocks reached 60.1 million shares worth a total of $9.1 billion in transactions. There was notable buy pressure in the Technology and Health Care sectors. Overall, buy volume pressure exceeded sell volume pressure by a 1.2 to 1 ratio. There were 166 stocks that had more buy pressure on balance, and 149 stocks that had more sell pressure from large institutions. As a whole, there was a net positive +$897.8 million in dollar volume trades. A greater amount of the trading volume occurred on lit exchanges, at 51.5%, compared with 48.5% 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 +$897.8 million, however, the peak buy imbalance for the day occurred at 1:15 PM, when the net buy dollar volume was +$1.0 billion. The lowest cumulative sell imbalance occurred at 10:15 AM, when the net sell reached -$213.6 million. The largest spike in imbalance came between 10:30 AM and 10:45 AM when the buy pressure outweighed the sell pressure by a 2.6 to 1 ratio.
Flow by Sector
Technology saw the most dollar volume bursts of all the SPDR sectors, with buy dollar volume exceeding sell dollar volume by $853.2 million. 27 of the Technology stocks had positive dollar balance, versus 26 that were net negative.
Individual Stocks
CMCSA stock had the single biggest volume burst activity of all the S&P 500 stocks. Sell volume bursts surpassed buy volume by 4.9 million shares. As of this afternoon, the average trade price on sell volume was $30.69. The stock has fallen $1.21, indicating weakness following the trade.

