Ye ole' buy the rumor, sell the news has come to fruition.
BTC reverted the entire rally (and then some) from Jan 7th/8th, which was just days ahead of the expected ETF approval.
On a longer time frame, BTC is now closer to the mid-December lows when the ETF was simply being discussed.
I still think over the next few weeks/month or two we could see BTC back down to $35k or so.
I took off half of my long ETH/short BTC pairs trade. Just a short-term trade, still long BTC in cold storage.