iPath Series B S&P 500 VIX Short-Term Futures ETNArca
Description
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As uncertainty leaves the market, the Vix should stabilize. I would buy a long put or sell a long call, as it could take a while for it to check down to the lower trend line.
Keep in mind, there is always the possibility of a catastrophic or unforeseen event that could send it through the roof so don't risk too much. Always keep your side bets to less than 5% of your overall account value, 10% at the most for extremely high conviction plays.
VXX is the perfect way to play volatility. For instance, if you expect a period of heightened uncertainty and volatile days where the market is churning, you could buy some VXX as short-term protection against high volume sell-off days.