We can see the price crashing since its release.
It have increased to pass $48k before it is crashing now. Although the increase was very short time, it was also the impact of Bitcoin ETF.
I would think that it will take a while for the ETF's to have any impact because they were just released.
Yep. We can't expect the Bitcoin ETF approval to bring instant impacts to Bitcoin price. We also must realize that Bitcoin already increased constantly in the last few weeks, it needs time for correction. In theory, Bitcoin ETF approval may boost the Bitcoin price but there are many other factors to influence the price as well. Market manipulation also can be the reason why there is no significant impact on the Bitcoin price. Or the price becomes quite stable because the investors prefer to see and wait first, they are analyzing the possibility of dumps before the Bitcoin halving.