People always look for a reason why the market makes big changes in price. Crypto is a new asset class, volatility is to be expected, sometimes there doesn’t need to be a reason, the market is primed to move either way. There can be a catalyst but for example right now the market is probably ready to start a slow climb up. The worst is probably over so you may see the Blackrock ETF being a reason why the price explodes upwards.
That's why we all love the volatility in Bitcoin, with the volatility of our trades and investments much faster than in any other asset.
Blackrock has indeed become a trigger for the price to rise, but Bitcoin still hasn't broken from $30k so there is still potential for this to be a bulltrap,
so be careful if the market bleeds again, get out and wait for it to calm down.