The sec.gov site has no press release about the approval.

I was thinking the same, but the @SECGov Tweet has now disappeared. What a hack if it's true!

What's interesting is... what did it achieve? A temporary 2% swing in BTCUSD price at best?

With leveraged trading you can make some decent gains if you know for certain something will jump a few %.

Not probable considering the tweets the hacker liked immediately after posting