People were hoping the ETF would trigger another bull run, which hasn't obviously occurred. However, in due time, the halving of BTC in the future will create more scarcity of BTC, which would lead to price increases. Not now, but perhaps by 2023, we could see a $160 000 ATH.

Someone posted the graph which could be a valid theory on the price of BTC for the future. I do not take credit for this, don't know who the original creator is.

https://i.imgur.com/RU4xemm.jpg