The spot Bitcoin ETF race kicked off in January 2024 with more than a dozen issuers sprinting out of the gate. Eighteen months later, the field has thinned into a two-horse race between BlackRock and Fidelity, with everyone else fighting for scraps.

VanEck’s HODL ETF sits somewhere between $1.1 billion and $1.9 billion in assets under management. Fidelity’s FBTC, by contrast, commands between $13.5 billion and $24 billion.

The fee war that didn’t move the needle

VanEck has tried the oldest trick in the asset management playbook: undercut on price. The firm waived its standard 0.20% sponsor fee on HODL all the way down to zero, a promotion set to last until the end of July 2026 or until the fund hits $2.5 billion in AUM.

Fidelity charges a 0.25% expense ratio on FBTC, which is modest but measurably more expensive than literally nothing. Yet investors keep choosing FBTC anyway.

By June 2026, VanEck’s HODL was recording daily inflows in the single-digit millions. Meanwhile, Fidelity and BlackRock’s IBIT were vacuuming up the vast majority of new capital entering the Bitcoin ETF space.

Custody: the quiet differentiator

One underappreciated factor in this matchup is how each issuer stores its Bitcoin. Fidelity custodies its holdings in-house through Fidelity Digital Assets, a subsidiary the firm has been building since 2018. That vertical integration gives Fidelity direct control over security, compliance, and operational risk.

VanEck, on the other hand, relies on Gemini for its custody solution.

The bigger picture: consolidation is coming fast

As of February 2026, US spot Bitcoin exchange-traded products collectively held 1,268,383 BTC, worth approximately $87.2 billion.

BlackRock’s IBIT and Fidelity’s FBTC have captured the lion’s share of inflows since inception. The remaining ten-plus issuers are splitting what’s left, and for some, the economics of running a Bitcoin ETF at sub-$2 billion in AUM start looking questionable.

Industry observers have noted that institutional capital is concentrating among the largest players, a dynamic that tends to be self-reinforcing.

What this means for Bitcoin investors

If you’re choosing between HODL and FBTC today, the math favors VanEck on cost and Fidelity on nearly everything else. FBTC offers deeper liquidity, in-house custody, and the gravitational pull of being the second-largest Bitcoin ETF in existence.

The fee waiver on HODL is genuinely attractive for smaller, cost-conscious investors. But that waiver expires at the end of July 2026 or at $2.5 billion AUM, whichever comes first. After that, the 0.20% standard fee kicks in, which is only marginally cheaper than Fidelity’s 0.25%.