In a significant display of investor confidence, Bitcoin (CRYPTO: BTC) spot Exchange-Traded Funds (ETFs) have witnessed a remarkable trend, with total net inflows reaching $477 million on Feb. 15. This marks the 15th consecutive trading day that these financial instruments have seen net inflows, underscoring a growing interest in cryptocurrency investments among mainstream investors. Despite the overall positive trend for Bitcoin ETFs, the Grayscale Bitcoin Trust (OTC: GBTC) experienced a net outflow of $174 million on the same day. This divergence highlights the competitive landscape among va…