Crypto - ETF correlation (BTC <-> SPY)

I have noticed for a while now that the big crypto players correlate somewhat well with the overall market. However, we have seen much more violent swings in the past with crypto than we do to the ETF’s. Recently it seems that BTC (specifically) is now more than ever correlated specifically with SPY, and to a slightly lesser extent QQQ. Not only does BTC have similar movements to SPY but it seems to almost predict SPY, not lag behind. This could be a giant leap and it is complete speculation on my part but I am opening this thread to star the discussion and see if we could come up with something that could benefit us all.