Am I the only on who thinks that Bitcoin price movements have changed in the more recent months and now more closely resemble that of the stock market (positive correlation)?
It sort of has,because bitcoin is now an investment,to the external new users. This is bound to be a thing now.
If my observation is correct, what does it mean for Bitcoin in a coming stock market crash? Will it go down with the market as well, because the BTC market is now dominated by Wall Street investors?
It is not dominated but yeah these wall street investors think that they run the markets. If there is a stock market crash that has any co-relation to bitcoin,in any terms,yes bitcoin may crash too. Otherwise not so much.