Grayscale's Bitcoin ETF, $GBTC, experienced its lowest daily outflows since the fund's inception in January, with a reported outflow of $17.5 million on Wednesday. This event marks a significant milestone for the fund, contrasting sharply with previous performance metrics. The ETF, which has been a focal point for investors tracking the performance of Bitcoin in a regulated investment vehicle, has seen varying levels of outflow since its launch. However, the recent figures suggest a potential shift in investor sentiment or market dynamics. The record-low outflow figure of just over $18 million was widely reported and discussed among financial analysts and cryptocurrency enthusiasts, highlighting its importance in the context of the ETF's history and the broader cryptocurrency market.