再看看20-day SPX BTO Calls and Puts volumes:
Below is a chart showing the average BTO calls and puts over the last 20 trading days. It shows a dramatic drop-off in BTO calls, and at the same time, a dramatic increase in BTO puts. In other words, fund managers are no longer hedging long equity exposure, and instead may actually be shorting the market, and buying VIX puts to hedge their short positions.
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