The modern starting point was the SEC's January 10, 2024 approval of rule changes allowing spot Bitcoin exchange-traded products to list and trade in the U.S. That decision made coin ETF exposure functionally similar to buying a stock: investors can route orders through standard brokers, use limit orders, and hold positions alongside equities and bonds.
Spot Ether products followed with spot Ethereum ETFs beginning U.S. exchange trading on July 23, 2024. From an investor's perspective, these funds track reference rates for their underlying asset and seek to reflect spot prices, net of fees and operating frictions.
The practical difference versus direct coin ownership is market access and custody: shares can be bought and sold intraday, but investors do not receive the underlying token, do not interact with smart contracts, and generally cannot transfer out to a wallet.
Size and liquidity tend to concentrate quickly in a small set of tickers, which matters for execution and tracking. On July 21, 2026, BlackRock's iShares Bitcoin Trust ETF (IBIT) reported net assets of $49,056,941,164, while BlackRock's iShares Ethereum Trust ETF (ETHA) reported net assets of $5,486,849,996.
For many traders, those scale dynamics translate into tighter spreads and deeper order books—though spreads can still widen sharply during crypto volatility or when U.S. markets are closed and crypto continues trading elsewhere.
Mechanically, a spot ETF works because authorized participants can create and redeem large blocks of shares, a process designed to keep market prices anchored near NAV. In stressed markets, that linkage can weaken temporarily: crypto prices move 24/7, but U.S. listings do not.
That gap is why spot products can trade at small premiums or discounts, especially around weekends, major macro headlines, or sudden crypto-specific breaks. The wrapper simplifies trading but does not always simplify tax reality.
Issuer disclosures commonly state an intent to be treated as a grantor trust for U.S. federal income tax purposes, with shareholders treated as owning a pro rata interest in the underlying asset. In practice, that means an ETF with cryptocurrency can generate specialized annual statements in addition to standard brokerage reporting.