Vanguard overtakes BlackRock as largest ETF issuer in US

Vanguard has claimed the title of largest ETF issuer in the United States, completing a years-long march that saw it close a massive gap with BlackRock’s iShares franchise.

To appreciate how significant this is, consider the trajectory. Back in 2018, Vanguard’s ETF assets were roughly 52% the size of BlackRock’s. By late 2024, that figure had climbed to approximately 97%.

The long game that finally paid off

The clearest signal of Vanguard’s momentum came in November 2024, when its flagship S&P 500 fund, VOO, overtook BlackRock’s competing IVV to become the world’s second-largest single ETF. At that point, VOO held $540.76 billion in assets compared to IVV’s $540.66 billion.

As of March 31, 2026, BlackRock’s iShares still held $4,030.8 billion in total US ETF assets, good for a 29.53% market share. Vanguard sat at $3,893.9 billion. Those numbers reflect the broader iShares lineup, which includes hundreds of specialized and niche products. But the overall issuer-level picture has now shifted in Vanguard’s favor.

In any given month, iShares has often outperformed Vanguard in short-term inflows, particularly during periods of market volatility when traders rotate into sector-specific or tactical products. But on an annual basis, Vanguard has historically been the stronger magnet for investor capital.

Two philosophies, one industry

BlackRock, under Larry Fink, has positioned itself as a full-spectrum asset management platform. It offers everything from plain-vanilla index funds to spot Bitcoin ETFs, private credit vehicles, and infrastructure strategies. The iShares brand alone spans well over 400 US-listed products.

Vanguard takes a more curated approach. Its product lineup is deliberately narrow, focused on core building blocks that long-term investors actually need. The firm’s ownership structure, where the funds themselves own the company, means it doesn’t answer to outside shareholders pushing for revenue growth through product proliferation.

This philosophical divide extends to crypto. BlackRock launched its iShares Bitcoin Trust (IBIT) in January 2024 and quickly turned it into the most successful ETF debut in history, pulling in billions within months. Vanguard, on the other hand, didn’t even allow its brokerage clients to access third-party crypto ETFs until December 2025.

When it did open that door, Vanguard offered access to Bitcoin, Ethereum, XRP, and Solana products issued by other firms. But it made clear it has no plans to launch proprietary crypto ETFs.

What this means for investors

VOO’s expense ratio sits at just 3 basis points. That’s $3 per year on a $10,000 investment.

Vanguard’s decision to at least allow third-party crypto ETF trading on its platform suggests the firm recognizes demand exists. It is giving investors the freedom to access crypto without putting Vanguard’s reputation behind it.

State Street, the third-largest ETF issuer, has been losing ground to both Vanguard and BlackRock for years. Smaller players like Invesco, Schwab, and JPMorgan have carved out niches but haven’t come close to challenging the top two.