SPY: Stocks with Huge Volume Spikes


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S&P 500 has seen increased institutional selling: Sell Imbalance sits at -$513.9 million

Following the Big Money in S&P 500 Stocks

So far in trading today, the S&P 500 ETF is unchanged. SPY stock last traded at $543.78. Large volume bursts in S&P 500 stocks reached 34.5 million shares worth a total of $5.1 billion in transactions. There was notable buy pressure in the Consumer Discretionary and Health Care sectors. Overall, sell volume pressure exceeded buy volume pressure by a 1.2 to 1 ratio. There were 132 stocks that had more buy pressure on balance, and 91 stocks that had more sell pressure from large institutions. As a whole, there was a net negative -$513.9 million in dollar volume trades. A greater amount of the trading volume occurred on lit exchanges, at 79.0%, compared with 21.0% 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 of -$513.9 million occurred at 2:15 PM. This also represented the largest sell imbalance for the day. The highest cumulative buy imbalance occurred at 10:15 AM, when the net buy hit +$327.4 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 4.8 to 1 ratio.

Flow by Sector

Technology had the most dollar volume bursts of all the SPDR sectors, with sell dollar volume exceeding buy dollar volume by $952.0 million. 17 of the Technology stocks had positive dollar balance, versus 22 that were net negative.

Individual Stocks

NVDA stock had the single biggest volume burst activity of all the S&P 500 stocks. Sell volume bursts exceeded buy volume by 5.9 million shares. As of this afternoon, the average trade price on sell volume was $120.64. The stock has fallen $7.35, indicating weakness following the trade.