This volume indicator tracks the volume of these 10 bitcoin ETFS:
AMEX:GBTC, NASDAQ:IBIT, AMEX:BTCO, AMEX:ARKB, AMEX:HODL, AMEX:EZBC, NASDAQ:BRRR, AMEX:BTCW, AMEX:DEFI, AMEX:BITB
It multiplies the traded shares with the hl2 share price and then devides the volume by the bitcoin hl2 price.
You can change to usd volume in settings.
Enjoy!
Notice that historical volume comes from etfs which traded already before launch like GBTC.
Also notice that that btc trades also when tradfi markets are closed, so then the indicator will show the last available volume. Something to fix later.