Notable option volume, among the top 5 volume expressed in monetary value since early April : 

$QQQ :
05/05 : Put @ 170.00 S, Exp 07/17/20 (19.573.516 $)

$SPX : 

05/06 : Put @ 2.575 S, Exp 08/21/20 (103.410.340 $)

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