Why the futures Bitcoin ETF costs more than its fee says

Quick answer: A spot Bitcoin ETF holds actual bitcoin. A futures ETF holds contracts that bet on bitcoin's price next month. For a long-term holder, spot is almost always the cheaper way to own it, and the sticker fee is the smaller reason why.

The fee you can see

A $10,000 position in a fund charging 0.95% costs you $95 a year. In a fund charging 0.25%, it costs $25. Same money, $70 apart.

That's roughly the gap when the first U.S. Bitcoin futures ETF, ProShares' BITO, launched in October 2021 at 0.95%, against the spot funds that started trading in January 2024. Most of the big spot funds came out near a quarter of a percent or lower, some with temporary waivers to win customers. Fees move, so check the number on the fund's own page before you buy anything.

Here's the annoying part. Spot doesn't automatically mean cheap. Grayscale's Bitcoin Trust, the oldest and biggest, converted to an ETF in January 2024 still charging 1.5%. That's a spot fund costing six times what its competitors charge. Read the expense ratio every time, whatever label is on the box.

And $70 a year on ten grand is a nuisance. It isn't the real problem.

The bill you don't see

Futures funds don't own bitcoin. They hold futures contracts, which are agreements to buy bitcoin at a set price on a set date. Those contracts expire, usually monthly. So the fund has to sell the one that's about to run out and buy the next one. That's called a roll.

If the next month's contract costs more than bitcoin does today, the fund pays that premium on every roll. The market calls this contango. You never see a line item for it. It just shows up as the fund trailing the price of bitcoin itself.

A hypothetical, with round numbers for illustration only. Say the next contract trades 1% above spot and the fund rolls every month. If that premium held all year, the drag would come to something like 12 percent annually, on top of the expense ratio. Real premiums have swung. At times they've been small. At other times they've been big enough to dwarf the fee. When the curve flips the other way, rolling can even help a fund. But you can't schedule that, and you're the one holding the risk.

There's a partial offset. Futures funds park their cash in Treasuries, and the interest helps. It doesn't always cover the roll.

Spot funds have no roll. They hold the coins in custody and the price tracks bitcoin, less the fee. That's the entire design.

Where tracking breaks down

Run a futures fund and a spot fund side by side over a single week and you might not notice anything. Over a year or two, the futures fund tends to fall behind, and the lag compounds like any other cost. That's why "it tracks bitcoin" means something different for each kind.

Ask one question before buying: what does this fund hold? If the answer is "futures contracts," you're not buying bitcoin. You're buying a monthly bet that costs you something to renew.

Taxes, in general terms

This is education, not advice for your situation. Ask a CPA about yours.

Spot funds are generally structured like a trust that holds the asset. Your gain or loss comes when you sell the fund shares, and hold them longer than a year and you'd typically be looking at long-term capital gains treatment. Futures funds are built differently. They can pass income through to shareholders in the form of distributions, and that can mean a tax bill in a year you didn't sell anything. Bring the fund's tax documents to your preparer and ask how it's treated, because the rules depend on the structure.

When the futures fund still makes sense

Be fair to it. From October 2021 until January 2024, a futures ETF was the only way for a lot of people to get Bitcoin exposure inside an ordinary brokerage account. It did that job, and it opened the door.

It also might fit a short-term trader who wants a particular futures position and understands the roll. Or somebody who already owns it in a retirement account where the distributions don't trigger an immediate tax. Those are narrow cases.

If you plan to hold for years, the futures structure works against you. Time is the thing that makes the roll cost add up.

One opinion, labeled as such. It shouldn't have taken a court ruling and more than ten years of applications for American investors to be allowed to buy a fund that holds the thing itself. Regulators spent that time steering people toward the more complicated product. The market sorted it out within months of finally being allowed to.

A simple check before you buy

• Open the fund's page. Find the expense ratio and note whether a waiver has an end date.
• Find out what it holds. "Bitcoin" in the holdings means spot. "Futures contracts" means a roll.
• Look at the gap. Compare the fund's return against bitcoin's over one and three years. A persistent lag is your roll cost showing itself.
• Read the prospectus summary. It's dry, but the fee table and the risk section are short. This is the same habit as reading the filings before you buy the ticker.
• Ask your tax preparer how the fund's income is reported before you've bought it, not after.

What a spot ETF doesn't do

It doesn't hand you the keys. You own shares in a fund, and the custodian holds the coins. That's a trade. You get a regular brokerage account, easy tax paperwork and no seed phrase to lose. You give up the ability to move the asset yourself or use it for anything but a price bet.

If that second part matters to you, owning bitcoin directly is its own project, with its own ways to go wrong. The biggest threat to your crypto is your own filing system is worth reading before you try it. And if you're still working out what this asset even is, start with Bitcoin, explained for somebody who skipped the last decade.

A spot ETF is a plain way to hold a volatile thing. It will still drop 30% some year, and no fee structure fixes that. Size the position so a drop like that doesn't change how you sleep or what you owe your family.

Pick the product where the price you see is the price you pay.