Selling your stocks for buying Bitcoins is a good move, but rebuying stocks is not necessary because you could earn more returns from bitcoin itself.But, it should be a long term investment.
Investing in bitcoins is good in compare to investing in stocks, but there are many people who are making good profits from stocks but those who are into bitcoins will definitely go for bitcoin investments as bitcoin can give massive profits in short term which is not possible with investment in stocks.