Bitcoin Spot ETFs See $131M Outflow Led by Fidelity and Ark

US spot Bitcoin (BTC) exchange-traded funds posted a net outflow of $131.13 million on Aug 13, fund-flow data shows, a sharp pullback in demand for Bitcoin products. Spot ETF flows — the net creation and redemption of fund shares — are watched as a proxy for institutional demand, and the window for this reading is the single US trading session of Aug 13. Redemptions were concentrated among two issuers: Ark Invest and 21Shares' ARKB fund lost $58.82 million — the largest single outflow — while Fidelity's FBTC shed $55.12 million, with the pair together accounting for $113.94 million of the day's total. Across that same session, the two largest crypto assets' fund vehicles moved in opposite directions. Even as Bitcoin funds bled capital, spot Ethereum exchange-traded funds attracted a modest $6.72 million, leaving the combined two-asset complex with roughly $124.41 million in net outflows. Total trading volume in the Bitcoin ETF complex reached $1.24 billion, a sign of active rotation rather than a clean exit from the market; the Ethereum funds traded $339.77 million on the day. Since inception, US spot Bitcoin ETFs have accumulated $51.85 billion in net inflows, with total net assets of $77.27 billion — about 6.07% of Bitcoin's market capitalization. The Ethereum products, by contrast, hold $10.57 billion in net assets against $11.45 billion in cumulative inflows, roughly 4.64% of Ethereum's market cap. Our reading of the split is that it reflects asset-specific positioning rather than a blanket risk-off move across the whole crypto ETF complex: capital is rotating within the major-asset and altcoin universe instead of fleeing it outright. That divergence — Bitcoin outflows against Ethereum inflows — is the defining feature of the session, and the concentration of withdrawals in Fidelity and Ark products, set against small inflows elsewhere, points to profit-taking or rebalancing in the largest non-BlackRock funds rather than a broad redemption wave.

The fund-level breakdown shows withdrawals spread across most major Bitcoin products, with only a few pockets of inflow. Grayscale's GBTC saw $36.29 million leave, Bitwise's BITB recorded a $9.28 million outflow, and Invesco's BTCO lost $7.88 million. Even BlackRock's IBIT — the largest spot Bitcoin ETF by assets — posted a modest $5.74 million net outflow, a small figure for a fund of its size but notable because it signals that even the market leader was not immune to the day's selling. Against that tide, Grayscale's mini Bitcoin Trust (BTC) drew $38.93 million — the largest single inflow of the session — and Morgan Stanley's MSBT added $7.08 million, though those gains were not enough to offset the Fidelity and Ark redemptions. By scale, BlackRock's IBIT remains the dominant vehicle, holding $47.34 billion in net assets against $61.15 billion in cumulative net inflows since launch. Fidelity's FBTC ranks second with $10.79 billion in net assets and $9.88 billion in cumulative inflows. The day's pressure nonetheless fell on the ARKB and FBTC pair rather than on the market leader, which limits the read-through for the broader Bitcoin ETF structure and keeps the episode issuer-specific for now. On the Ethereum side, the modest inflow was led by Grayscale's mini Ethereum trust, which took in $6.47 million, with Morgan Stanley's MSSE adding $811,330. BlackRock's ETHA shed $569,200, while Fidelity's FETH and Grayscale's ETHE saw no notable flow. BlackRock's ETHA kept its position as the largest Ethereum fund with $5.66 billion in net assets and $11.63 billion in cumulative inflows, and Grayscale's ETH product holds $1.6 billion in net assets against $1.82 billion in cumulative inflows. The outstanding question for coming sessions is whether Bitcoin's outflow streak extends and whether Ethereum's inflows can broaden into the larger BlackRock and Fidelity products — the signal that would turn a one-day rotation into a durable trend.

Beyond the Bitcoin-Ethereum split, XRP-linked products also drew selective demand on Aug 13, with Bitwise's XRP fund capturing the full $2.25 million in net inflows for the category on $7.88 million in trading volume, lifting combined net assets to $942.25 million. The inflow coincided with fresh institutional disclosures: Bank of Montreal's latest regulatory filing revealed positions in both the REX-Osprey XRP ETF and ProShares Ultra XRP ETF, while Canadian National Bank reported holdings in Bitwise's XRP fund alongside US-listed Bitcoin products. The session also marked the third consecutive day of outflows for Bitcoin ETFs this week, with Fidelity's FBTC extending its own streak to two straight days of redemptions totaling $101 million. Solana and HYPE ETFs recorded no net flows during the session.

Adding a structural overhang beyond flow data, index provider MSCI has proposed a new "non-operating company" screening standard for its Global Investable Market Indexes that would assess whether a firm's core operating assets exceed 50% of total assets. Market observers note that Strategy and Metaplanet — both heavy corporate Bitcoin holders — would fail the threshold and face potential exclusion from major equity benchmarks. Strategy publicly opposed the framework, stating that index providers should measure market performance rather than dictate which assets companies may hold. The public consultation runs through September 30, with a final decision scheduled for October 16; if approved, removals could begin as early as November, potentially triggering forced selling by passive funds that currently hold those equities and severing a key institutional adoption channel for Bitcoin.

(as of 20:32 UTC) COINOTAG's proprietary 42-indicator composite scoring engine reads Bitcoin in a downtrend, spot $62,970, RSI 42, MACD bearish. It rates the $63,082 resistance at 95/100 — Flip S→R, POC, Fibo 0.214 and MACD Cross — and the $62,884 support at 81/100 off S1, LVN, Ichimoku Senkou A and Ichimoku Cloud Bottom. Derivatives lean long: long/short ratio 2.19, open interest $13.95 billion, funding near flat at 0.0038%, Fear & Greed at 29 (Fear), far from all-time high euphoria. Below $63,082 the bias stays bearish — a step short of a bear market; a confirmed close above opens the 80/100 $64,427 test, while a break under the 81/100 $62,884 support exposes the 52/100 $61,602 floor.