Agreed, VXX is not your typical BUY & HOLD trade Also, VXX, like other volatility instruments usually decay over weekends etc and then inflate at the start of the next week etc etc.
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But, this is relative volatility trade, also a political one, that I may hold on for a week or two or ..... I will risk about 1500 on the trade, and decide to close or keep it, depending on the market movements.