Bitcoin (BTC) ETF Outflows Hit $462.7M as Fed Decision Looms

Spot Bitcoin ETF Outflows Reach $462.7M

Bitcoin (BTC) ended last week down 3.8%, underperforming Ethereum (ETH) and several top altcoins, and the clearest source of selling pressure sat in the US ETF complex. Aggregate flow data shows US spot Bitcoin (BTC) ETFs posted net outflows on every trading session from Sept. 8 through Sept. 11, for a combined $462.7 million in weekly net redemptions. The tape was holiday-shortened — US markets only reopened on the Tuesday after Labor Day — so the fund count covers just four sessions, yet all four printed outflows. Ethereum ETFs told the opposite story, drawing $197.1 million of net inflows over the same window, a rotation that kept overall Bitcoin market sentiment fragile while risk appetite migrated elsewhere in crypto. The pressure now runs straight into a packed policy week: the Fed's FOMC convenes Sept. 15-16, the Bank of England decides on Sept. 17 and the Bank of Japan meets Sept. 17-18. CME FedWatch pricing puts the probability of a 25-basis-point US hike at 87.3%, while Polymarket — where a recent Yale study found 3% of traders capture 27% of Bitcoin betting profits — splits 43% on September being the only hike this year against 41% for two moves totaling 50 basis points. In the UK, a hold at 3.75% is the base case, a sixth consecutive pause with Hugh Pill, Catherine Mann and Megan Greene tipped to dissent in favor of a hike. Japan's 72.8%-priced lift to 1.25% would push borrowing costs to their highest since April 1995. With WTI front-month crude near $99.99, the inflation backdrop is unlikely to soften before any of the three votes — see our companion piece on Goldman Sachs Expects 25bp Fed Rate Hike on Sept. 16.

AI Slowdown Calls and a Hot August PPI

The softness carried through the weekend. On Japanese pairs, Bitcoin (BTC) slipped below the ¥12 million line and last traded around ¥11.87 million — down just 0.10% over 24 hours but 4.7% across seven days, with dollar quotes near $77,200 on Sept. 13, per the live BTC/USD chart. The wider picture is firmer than the week suggests: BTC remains up 22.34% over 30 days, so the recent dip sits inside a broader monthly recovery rather than a fresh downtrend. Two new overhangs explain the hesitation. The first is AI sentiment. On Saturday, Anthropic chief Dario Amodei called for a slower pace of model development and the use of independent third-party evaluators, and OpenAI's Sam Altman publicly aligned with him, saying safety concerns would push OpenAI's planned IPO back to 2027. Bitcoin has traded in recent months as a high-beta expression of the AI-capex narrative, so doubts about that spending pipeline transmit to crypto quickly. The second is producer inflation. The Bureau of Labor Statistics' August PPI, released Sept. 10, rose 0.4% month-on-month on a seasonally adjusted basis and 5.4% year-on-year unadjusted, with goods prices up 1.1% — energy, up 4.2%, accounted for more than three-quarters of that goods increase. With the FOMC statement due Sept. 16, the first real-time gauge of how markets digest the combination will be Monday's session in US tech equities, the proxy risk asset that has tracked Bitcoin (BTC) most closely this month. Readers tracking the market in real time can follow live spot and futures prices on MEXC.

Stablecoin Liquidity Waits Out the Fed

The hawkish repricing accelerated into Monday, with the sell side now split on how far tightening goes. Goldman Sachs abandoned its prior call for a September hold and now expects the FOMC to lift rates 25 basis points this week, while JPMorgan goes further, forecasting a second hike in December and raising its long-run policy rate estimate to 3.25%. Rate futures put the odds of at least one more move by year-end near 97%, up from roughly 70% for September alone before the latest inflation data, and the 10-year Treasury yield is pressing toward 5% with the 30-year near 5.36% — levels last seen in 2004. Adding to the pressure, Brent crude jumped 2.5% to $107.30 after Saudi Arabia closed a major oil pipeline following drone attacks, and a planned Iran–Gulf dialogue was postponed, keeping the energy-driven inflation narrative intact ahead of Wednesday.

Fund-level breakdowns of the $462.7 million weekly redemption now show where the selling concentrated. ARK Invest and 21Shares' ARKB led outflows at $234 million, though the fund retains $1.22 billion in cumulative net inflows since inception, followed by Grayscale's GBTC at $129 million, lifting GBTC's lifetime net outflows to $27.78 billion. Morgan Stanley's MSBT was the week's largest inflow destination at $19.645 million, bringing its cumulative net inflows to $529 million. As of Sept. 11, the complex's total net assets stood at $97.58 billion, equal to 6.28% of Bitcoin's market capitalization, with lifetime cumulative net inflows across all spot Bitcoin ETFs at $55.15 billion.

New daily-level detail adds texture to the weekly redemption picture. The outflows marked a reversal after three consecutive weeks of net inflows — the strongest such run of 2026 — with the selling deepening on Thursday, when US spot Bitcoin ETFs shed $282.7 million in their largest single-day withdrawal since July, before Friday's pace slowed to $13.2 million. Beyond ARKB and GBTC, BlackRock's IBIT lost $52.5 million on the week and Fidelity's Wise Origin fund shed $50.7 million. Despite the negative streak, the complex remains in positive territory for September, with roughly $307.3 million of net inflows through Friday. On the Ether side, Friday delivered the week's decisive swing: after mixed sessions early on, ETH ETFs drew $216.4 million on Friday alone, led by BlackRock's ETHA at $148.8 million and 21Shares' Core Ethereum ETF at $29.1 million, pushing the four-day tally to $196.9 million.

(as of 07:33 UTC) The thread linking both developments is caution, not capitulation. COINOTAG's proprietary 42-indicator composite engine maps a dense support shelf beneath spot at $77,719.75 (24h +0.77%): $77,057.10 scores 92/100 (EMA 20, Fibo 0.214, Pivot Point, LVN), backed by $73,674.39 at 77/100 (HVN, Keltner Lower, Fibo 0.382, Supertrend) and $70,921.06 at 59/100. Overhead, resistance at $78,569.58 (64/100, Fibo 0.114, LVN) and $83,238.36 (61/100) caps the uptrend, with RSI at 56.42 and a bearish MACD signal tempering momentum. Derivatives positioning leans constructive: funding sits at 0.0056%, open interest at $15.27B, and the long/short account ratio reads 1.58 (61.2% long). Our tracked universe stands at $2,293,850,124,531 with BTC at a 68.0% share, and the Fear & Greed Index reads 57 (Greed). A clean break above $78,569.58 would open the path toward $83,238.36, while rejection there likely sends price back to the $77,057.10 shelf.