Since I’m feeling no fear whatsoever about the possibility of a stock-market collapse, it’s probably time to buy some speculative puts.  So that it is not mere “feelings” that inform this trade, we’ll use a 50% retracement of the decline from Tuesday’s high as a place to get short.  The corresponding number is 46.04,  so buy two  March 44 puts (QQQOR) if and when that number  is closely approached. The puts should  be trading for around 0.72-0.76 if you want to simply enter a limit bid before the opening.