Bitcoin exchange-traded funds (ETFs) experienced a significant net outflow of $326.71 million on October 13. Among the notable movements, BlackRock's IBIT saw an inflow of $60.16 million, while Fidelity's FBTC and Bitwise's BITB recorded outflows of $93.28 million and $115.64 million, respectively. Ark Invest's ARKB also saw a reduction of $21.12 million. Grayscale's GBTC faced a substantial outflow of $145.39 million, contributing to the overall negative flow. Other ETFs, including Invesco's BTCO and QBTC, Franklin's EZBC, and WisdomTree's BTCW, reported no net changes. VanEck's HODL saw a minor outflow of $11.44 million, while Grayscale Mini BTC remained unchanged.