Major cryptocurrency spot exchange-traded funds (ETFs) experienced a significant shift in investor sentiment this week, with Bitcoin, Ethereum, and Solana funds all recording net outflows, breaking positive streaks that had lasted for weeks.
Bitcoin spot ETFs saw their first net outflows in a month, with a combined negative flow of $296.18 million for the week ending March 29, 2026, according to data from SoSoValue. This ends a four-week bullish streak that had brought in a combined net inflow of $2.21 billion. The week's outflow represents the seventh weekly outflow of 2026 and the fifteenth since the crypto bear market began in October 2025.
The daily breakdown reveals the outflows were concentrated, with consecutive negative days on Thursday and Friday accounting for over $396 million. Friday's $225.48 million outflow was the largest single-day net withdrawal since March 3rd. Leading the outflows was BlackRock's IBIT with $158.07 million in net redemptions, followed by significant outflows from Grayscale's GBTC, Bitwise's BITB, and Ark/21 Shares' ARKB, which combined for $169.26 million. Fidelity's FBTC was the sole fund to record a net inflow for the week, attracting $46.88 million.
In a parallel development, US Solana spot ETFs posted $4.24 million in net outflows, marking their first negative week since early February 2026. While the dollar amount is modest compared to the hundreds of millions absorbed in late 2025, the direction reversal is notable. The funds had enjoyed a clean streak of weekly net inflows since February, making this the first interruption to that sustained trend. The Solana ETFs, which launched in October 2025, had pulled in close to $200 million in their first three days and over $400 million in November alone.
Ethereum spot ETFs extended their negative performance for a second consecutive week, registering weekly net withdrawals of $206.58 million. This brings the cumulative total net inflow for the Ethereum spot market to $11.52 billion, with total net assets valued at $11.33 billion.
Amidst this backdrop of outflows, potential new competition is on the horizon. American banking giant Morgan Stanley has filed to launch its own Bitcoin spot ETF under the ticker MSBT. Bloomberg analyst Eric Balchunas noted the proposed fund would offer the lowest fee in the market at 0.14%, just below Grayscale's 0.15%. If approved by the SEC, MSBT would be the first Bitcoin spot ETF directly listed by a US bank. Morgan Stanley manages $1.9 trillion in assets and has a market cap of $251 billion.
