In the link you have given on Instagram there was no mention of 7 btc being traded. The only thing mentioned is this:
" At 8:02pm EST, the first Bitcoin futures contract was traded at a price of $10,115 per BTC.
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
How will Wall Street react to the launch of Bakkts Bitcoin futures exchange and ICEs moonshot bet?"
https://www.instagram.com/p/B2vLp43pI2A/I hope you can place the link where you derived the figure which is 7 btc. At the moment I guess Wall Street will not really mind since Bakkts's bitcoin futures exchange volume has just started. But if the volume will increase and the number of users/investors at Bakkt then that will be the time when wall street will be threatened and possibly will launch its own bitcoin futures.