biggest loss series BOIL PROSHARES TRUST II 100 98 02/03/2023 05/12/2023 $299.99 $1,400.00 0.00 -$1,100.01 BOIL PROSHARES TRUST II 100 98 02/03/2023 05/12/2023 $300.00 $1,000.00 0.00 -$700.00