SPY: Large Volume Trades and Price Impact


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S&P 500 is indicating institutional selling: Sell Imbalance sits at -$1.7 billion

Following the Big Money in S&P 500 Stocks

So far in trading today, the S&P 500 ETF is down 1.0%. SPY stock last traded at $684.75. Large volume bursts in S&P 500 stocks reached 88.7 million shares worth a total of $14.6 billion in transactions. There was notable buy pressure in the Real Estate and Consumer Staples sectors. Overall, sell volume pressure exceeded buy volume pressure by a 1.3 to 1 ratio. There were 170 stocks that had more buy pressure on balance, and 209 stocks that had more sell pressure from large institutions. As a whole, there was a net negative -$1.7 billion in dollar volume trades. A greater amount of the trading volume occurred on lit exchanges, at 53.8%, compared with 46.2% 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 sell imbalance is -$1.7 billion, however, the furthest sell imbalance for the day occurred at 1:00 PM, when the net sell dollar volume was -$1.9 billion. The highest cumulative buy imbalance occurred at 9:45 AM, when the net buy hit +$379.1 million. The largest spike in imbalance came between 10:30 AM and 10:45 AM when the sell pressure surpassed the buy pressure by a 5.4 to 1 ratio.

Flow by Sector

Technology experienced the highest amount of dollar volume bursts of all the SPDR sectors, with sell dollar volume exceeding buy dollar volume by $807.6 million. 24 of the Technology stocks had positive dollar balance, versus 37 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 surpassed sell volume by 590,593 shares. As of this afternoon, the average purchase price on buy volume was $14.09. The stock has rallied $0.19, indicating strength following the trade.

Market Data Delayed 15 Minutes