$BITO just about at $1b in total volume today (curr $993m but trades still trickling in). Easily the biggest Day One of any ETF in terms of 'natural' volume. It also traded more than 99.5% of all ETFs (incl some bigs like $DIA, $ARKK, $SLV). It def defied our expectations.. pic.twitter.com/rWIPSAJboT

— Eric Balchunas (@EricBalchunas) October 19, 2021