⚠ Flows Follow MarketsModerate threat
BlackRock (BLK) — threat to the moat
Two-thirds of the growth in the flagship business was prices rather than persuasion, and the next drawdown is the only honest test of which.
Half a trillion dollars of net inflows sounds like a demonstration of competitive strength. Some of it is. A good deal of it is a bull market, and the two are difficult to separate from outside.
Retail and adviser money moves procyclically: allocations rise into strength and stall into weakness. The categories that grew fastest in 2025 — equity ETFs, digital assets, gold1 — are precisely the ones where the flow is most sensitive to recent returns. Nobody put $35 billion into digital asset products because of a considered twenty-year view on portfolio construction.
The market-change effect makes it worse as a signal. Equity ETF assets rose $580 billion on market movement in 2025 against $289 billion of inflows2 — so two-thirds of the growth in the flagship business was prices, not persuasion. BlackRock earns fees on both, which is the beauty of the model and also the reason the revenue line is more cyclical than the word annuity suggests.
The test is a bad year. In the next drawdown, watch whether the ETF business still takes in net money while assets fall. If it does, the flows were structural; if it does not, they were momentum, and the fee base is more fragile than the ten-year compound rate implies.
- ReportedThe categories that grew fastest in 2025 — equity ETFs, digital assets, gold — are precisely the ones where the flow is most sensitive to recent returnsBlackRock, Inc. Form 10-K, FY2025, Item 1 Business — iShares ETF AUM $5.5 trillion with $527 billion of 2025 net inflows: equity $289,263M, fixed income $175,328M, digital assets $34,763M, commodities $25 billion, multi-asset $1,978M; US-listed ETF AUM $3.9 trillion with $367 billion of inflows and international listings $1.6 trillion with $160 billion; equity ETF AUM rose from $3,106,398M to $4,006,014M on $580,684M of market change and $29,669M of FX, fixed income from $985,652M to $1,205,953M, digital assets from $55,306M with a negative market change; 2025 equity net inflows $220 billion overall, being $289 billion into ETFs against $55 billion and $14 billion of outflows from non-ETF index and active; fixed income net inflows $164 billion, $175 billion into ETFs and $29 billion into active; "approximately half of BlackRock's equity AUM is tied to international market strategies, including emerging markets, which tend to have higher fee rates than US equity strategies" — FY2025 · publ. February 2026 · source ↗
- ReportedEquity ETF assets rose $580 billion on market movement in 2025 against $289 billion of inflows — so two-thirds of the growth in the flagship business was prices, not persuasionBlackRock, Inc. Form 10-K, FY2025, Item 1 Business — iShares ETF AUM $5.5 trillion with $527 billion of 2025 net inflows: equity $289,263M, fixed income $175,328M, digital assets $34,763M, commodities $25 billion, multi-asset $1,978M; US-listed ETF AUM $3.9 trillion with $367 billion of inflows and international listings $1.6 trillion with $160 billion; equity ETF AUM rose from $3,106,398M to $4,006,014M on $580,684M of market change and $29,669M of FX, fixed income from $985,652M to $1,205,953M, digital assets from $55,306M with a negative market change; 2025 equity net inflows $220 billion overall, being $289 billion into ETFs against $55 billion and $14 billion of outflows from non-ETF index and active; fixed income net inflows $164 billion, $175 billion into ETFs and $29 billion into active; "approximately half of BlackRock's equity AUM is tied to international market strategies, including emerging markets, which tend to have higher fee rates than US equity strategies" — FY2025 · publ. February 2026 · source ↗