Shares of the Bitcoin (CRYPTO: BTC)-focused exchange traded fund iShares Bitcoin Trust ETF (NASDAQ: IBIT) rallied 14.3% in April, according to data from S&P Global Market Intelligence . IBIT is essentially a way to buy Bitcoin through traditional custodial entities, and its value tends to mirror the price of Bitcoin exactly. Typically, Bitcoin's performance has mirrored that of speculative technology stocks during past downturns.