Fund profiles
GBTC and the Grayscale Bitcoin Mini Trust
One issuer runs two funds holding the same bitcoin at the same custodian, at 1.50% and 0.15%. Why that exists, why holders stay, and how to work out whether to switch.
Grayscale runs two spot Bitcoin funds. They hold the same asset, at the same custodian, under the same sponsor. One charges 1.50% a year. The other charges 0.15%.
That is not a misprint, it is not a promotional period, and it has persisted for over two years. Understanding why is the most useful thing in this entire category, because it explains something real about how investors behave and it may well affect money you already hold.
Two funds, one asset
| Field | GBTC | BTC (Mini Trust) |
|---|---|---|
| Full name | Grayscale Bitcoin Trust ETF | Grayscale Bitcoin Mini Trust ETF |
| Sponsor fee | 1.50% | 0.15% |
| Net assets | ~$14.9 billion | ~$3.4 billion |
| Listed on | NYSE Arca | NYSE Arca |
| Custodian | Coinbase Custody | Coinbase Custody |
| Underlying asset | Bitcoin | Bitcoin |
| Became an ETP | 11 January 2024, by conversion | 31 July 2024, spun out of GBTC |
| Origin | Private trust launched 2013 | Created to offer a low-fee alternative |
Two products, one sponsor, one custodian, one asset, a tenfold fee difference. For a new position there is no argument for the more expensive one.
The 40% discount era, and why it happened
Before January 2024, GBTC was not an ETF. It was a closed-end trust that could issue shares but had no redemption facility — shares went in and could never come out.
Follow what that does to pricing. If shares trade below the value of the bitcoin behind them, an arbitrageur would normally buy the cheap shares, redeem them for the more valuable asset, and pocket the difference. With no redemption, that trade does not exist. Nothing forces the gap closed.
So when demand fell, the discount widened past 40%. Holders owned claims on bitcoin worth substantially more than their shares fetched, and the only exit was selling into the same depressed market. That was not a mispricing anyone overlooked — it is the correct price for a claim you cannot redeem.
Conversion to an ETP created a redemption facility, the arbitrage became possible, and the discount collapsed within weeks. It remains the clearest available demonstration of what the creation and redemption mechanism is for — see arbitrage explained and NAV, premiums and discounts.
Why 1.50% persists in a market where 0.14% exists
This is where it gets genuinely interesting, because the answer is not that holders are inattentive.
GBTC's holder base is largely people who bought years ago, often at a fraction of today's bitcoin price. Selling in a taxable account realises that entire embedded gain. For someone whose basis is a small fraction of current value, the capital gains bill can exceed a decade of the fee difference — which makes staying in a 1.50% fund the mathematically correct decision.
Grayscale is not obliged to cut the fee, and cutting it would reduce revenue from a captive base without recovering the price-sensitive investors who left long ago. So instead it built a second product for them: the Mini Trust.
The Mini Trust: a clever solution
On 31 July 2024, Grayscale spun the Bitcoin Mini Trust out of GBTC and listed it under the ticker BTC at a 0.15% fee — at the time the lowest-cost bitcoin ETP in the US market, and still second only to Morgan Stanley's 0.14% MSBT.
The structure was deliberately investor-friendly in one specific way: existing GBTC holders received Mini Trust shares as part of the spin-off, which delivered a portion of their exposure at the lower fee without requiring them to sell and realise a gain. That is a genuinely elegant piece of product design for a genuinely awkward problem.
It also means Grayscale now competes at both ends: a legacy fund with high fees and captive assets, and a competitive fund priced against BlackRock and Morgan Stanley.
Should you switch out of GBTC?
The answer depends almost entirely on account type, and it is worth doing properly.
| Your situation | Likely answer | Reasoning |
|---|---|---|
| Held in an IRA or 401(k) | Switch | No tax consequence. The 1.35 percentage point saving is permanent and immediate. |
| Taxable, small or no embedded gain | Switch | Little or no tax to pay, and a large ongoing saving. |
| Taxable, large embedded gain, long horizon | Run the numbers | Tax paid today versus fee saved over your remaining holding period. A long horizon favours switching. |
| Taxable, large embedded gain, near-term sale planned | Probably stay | Paying tax now to save a year of fees rarely works out. |
| Sitting on a loss | Consider carefully | Realising the loss may be useful, but wash-sale treatment on these products is unsettled — see taxes. |
This is a framework, not advice. It turns on your actual cost basis, holding period, marginal rate and state tax — none of which we can see. It is a good conversation to have with a tax professional.
Neither fund gives you the bitcoin
GBTC at 1.50% and the Mini Trust at 0.15% are both claims on bitcoin held by a custodian. Holding the coins yourself has no annual fee at all — CEX.IO is registered with FinCEN as a money services business, licensed for money transmission across US states, and authorised in Gibraltar as a DLT provider.
The permanent outflow, and how to read it
GBTC has recorded outflows steadily since conversion. On 27 August 2026, for instance, Farside logged GBTC at −$27.2 million on a day of $242.3 million net category inflow.
It is worth being clear about what that is and is not. It is not a bearish signal on bitcoin. It is fee migration — price-sensitive holders leaving a 1.50% product for a cheaper one, frequently the Mini Trust from the same sponsor. Anyone quoting GBTC outflows as evidence of institutional scepticism is misreading a fee arbitrage as a market view. We cover this trap in flows explained.
ETHE: the same story on the ether side
Grayscale ran the identical playbook with ether. ETHE, the converted Grayscale Ethereum Trust, charges 2.50% — the highest fee of any major US crypto ETP — while the Grayscale Ethereum Mini Trust trades under ticker ETH at 0.15%.
ETHE does have one distinction: on 5 January 2026 it became the first US crypto ETP to distribute staking rewards to shareholders. That is historically significant and it does not close a 2.35 percentage point fee gap — a 2.50% management fee can consume most of a typical staking rate before any of it reaches you. See Ethereum staking ETFs and the Ethereum ETF list.
Our take from the desk
We are hard on GBTC's fee and we think Grayscale deserves credit for the Mini Trust, which solved a problem it could have simply exploited. The uncomfortable truth in this story is about tax lock-in rather than about Grayscale: a large embedded gain can rationally trap an investor in a product charging ten times the market rate, and no amount of fee transparency fixes that. It is the strongest practical argument on this site for putting volatile long-horizon positions in a retirement account, where switching is always free.