After a sustained period of inflows, US Bitcoin spot ETFs experienced a net outflow of $114.69 million (₩160.4 billion) on July 31st, marking the first such occurrence in six trading days. While some ETFs, like BlackRock's IBIT ($18.77 million), Franklin Templeton's EZBC ($6.78 million), and Grayscale's Mini BTC ($5.69 million), continued to attract investment, others faced significant outflows. Ark Invest's ARKB saw the largest exit at $89.92 million, followed by Fidelity's FBTC ($53.63 million) and Grayscale's GBTC ($9.18 million). Despite this single-day reversal, July proved to be a strong month overall for BTC spot ETFs, with a total net inflow of $6 billion. Investors are closely watching these funds as barometers of institutional sentiment towards Bitcoin. The volatility highlights the nascent stage of these investment products and the potential for rapid shifts in capital flows. This outflow could be due to profit-taking after a strong July or concerns about regulatory headwinds. ```