SPY: Stocks with Huge Volume Spikes


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S&P 500 is showing signs of institutional buying: Buy Imbalance reaches +$102.1 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 $519.10. Large volume bursts in S&P 500 stocks reached 36.8 million shares worth a total of $5.8 billion in transactions. There was notable buy pressure in the Consumer Discretionary and Financial sectors. Overall, buy volume pressure exceeded sell volume pressure by 0.0%. There were 129 stocks that had more buy pressure on balance, and 113 stocks that had more sell pressure from large institutions. As a whole, there was a net positive +$102.1 million in dollar volume trades. A larger portion of the trading volume matched up in the dark pool, with 51.0% of the large volume transactions being made off-exchange, while only 49.0% was traded on lit exchanges. 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 +$102.1 million, however, the peak buy imbalance for the day occurred at 1:30 PM, when the net buy dollar volume was +$242.4 million. The lowest cumulative sell imbalance occurred at 10:30 AM, when the net sell reached -$419.3 million. The largest spike in imbalance came between 10:15 AM and 10:30 AM when the sell pressure surpassed the buy pressure by a 3.1 to 1 ratio.

Flow by Sector

Technology had the most dollar volume bursts of all the SPDR sectors, with buy dollar volume exceeding sell dollar volume by $33.2 million. 25 of the Technology stocks had positive dollar balance, versus 18 that were net negative.

Individual Stocks

T stock had the single biggest volume burst activity of all the S&P 500 stocks. Buy volume bursts and sell volume bursts were equal throughout the day.