Data as of Oct 28, 2026.
BITO vs MBB: Differences, Returns & Fees
Over the year to Oct 28, 2026, BITO returned −30.5% to MBB's −0.8%, and MBB charges 0.04% to BITO's 0.95%.
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Net assets on Oct 28, 2026: $1.6bn for ProShares Bitcoin ETF and $35.5bn for iShares MBS ETF.
Pair scorecard
MBB costs 0.91 points a year less; their one-year returns differ by 29.7 points; MBB is far larger, $35.5bn against $1.6bn.
| Measure | BITO | MBB |
|---|---|---|
| Return | ||
| Total return, 1 year | −30.5% | −0.8% |
| Benchmark | ||
| What it tracks | Bitcoin futures and swaps on Bitcoin | Bloomberg U.S. MBS Index |
| Cost and size | ||
| Expense ratio | 0.95% | 0.04% |
| Net assets | $1.6bn | $35.5bn |
| Holdings | ||
| Holdings in common | 0% | |
Holdings in common uses holdings dated Oct 27, 2026. Method
What they share
By the books each fund has filed, BITO and MBB hold 0% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.
half
0% in common
Only in one fund ↓
Side by side
BITO and MBB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
BITO is a registered fund that reaches Bitcoin through what its N-PORT for Aug 31, 2026 lists: Bitcoin futures and swaps on Bitcoin. Over the year to Oct 28, 2026, Bitcoin moved −28.3% and BITO returned −30.5%. That leaves it 2.2 percentage points behind. BITO is a registered investment company: it files a monthly N-PORT rather than a 10-K. Its N-PORT for Aug 31, 2026 puts 67.9% of its net assets in ProShares GENIUS Money Market ETF.
A holder gets exposure to Bitcoin without the fund holding the coin itself. That difference is the fee, the cost of rolling the futures from one month to the next, what the futures traded at against Bitcoin, and what the market paid for the shares, all of it together. It is the only number on this page the sponsor does not publish itself.
MBB
MBB tracks an index of mortgage-backed securities. Over the year to Oct 28, 2026 it returned −0.8% with distributions reinvested, against −1.1% for its benchmark, the Bloomberg U.S. MBS Index. The prospectus expense ratio is 0.04% a year.
Questions people ask
- Are BITO and MBB in the same category?
- BITO is a crypto futures ETF and MBB is a bond ETF, so they do different jobs. The table compares what both publish: return, cost and holdings.
- Which returned more over the last year, BITO or MBB?
- In the year to Oct 28, 2026, with distributions reinvested, BITO returned −30.5% and MBB −0.8%.
- Which is cheaper, BITO or MBB?
- MBB is cheaper, by 0.91 percentage points a year. That is about $91 on $10,000 held for a year. Fees come from each fund's prospectus.
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, BITO against MBB, data as of Oct 28, 2026. https://etfiq.com/compare/any/bito-vs-mbb
ETFIQ. (Oct 28, 2026). BITO against MBB. Retrieved from https://etfiq.com/compare/any/bito-vs-mbb
[BITO against MBB (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/bito-vs-mbb)
Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.