Three reasons:
- QQQQ calls are extremely liquid and easy to trade
- The NASDAQ 100 is down the least this morning (it hasn't even broken last Thursday's low, even with all the news this weekend!)
- The contingent stop-loss price is pretty clear; either 42.36 (the day's low) or 42.57 (which I am using, since that seems to be the pivot point this morning)
