Big Prints in the Qs (QQQQ) after a stragist sells the Feb 43 – 46 put spread at $1.89, 32000X, to buy the Mar 40 – 43 put spread at 80 cents, 50000X. The action has the hallmarks of a roll, with a strategist closing a spread in February and buying-to-open a similar one, but at lower strike prices, in March. So, this looks like an institutional investor adjusting a hedge.