Data as of Oct 28, 2026.
MBB vs NOBL: Differences, Returns & Fees
Over the year to Oct 28, 2026, MBB returned −0.8% to NOBL's +15.5%; 0% of their weight is in the same names.
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Net assets on Oct 28, 2026: $35.5bn for iShares MBS ETF and $11.6bn for ProShares S&P 500 Dividend Aristocrats ETF.
Pair scorecard
MBB costs 0.31 points a year less; their one-year returns differ by 16.3 points; MBB is 3.1 times larger.
| Measure | MBB | NOBL |
|---|---|---|
| Return | ||
| Total return, 1 year | −0.8% | +15.5% |
| Benchmark | ||
| What it tracks | Bloomberg U.S. MBS Index | S&P 500 Dividend Aristocrats Index |
| Cost and size | ||
| Expense ratio | 0.04% | 0.35% |
| Net assets | $35.5bn | $11.6bn |
| Holdings | ||
| Holdings in common | 0% | |
| In the S&P 500, by weight | 98% | |
| Top ten holdings, share of the fund | 17.0% | |
Holdings in common uses holdings dated Oct 27, 2026. Method
Risk and return
Oct 18, 2013 to Oct 23, 2026 · 679 weekly returnsNOBL returned more: +264.8% to +22.3%. MBB swung less: 4.4% to 15.4%. MBB fell less at its worst: −17.4% to −31.7%.
Full scorecard
9 measures, with how each is measured Open ↓
| Measure | MBB | NOBL | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +22.3% | +264.8% | NOBL | Price change plus distributions, reinvested. |
| Annualized | +1.6% | +10.4% | NOBL | Total return as a yearly rate. |
| Price return | −14.0% | +179.1% | NOBL | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 4.4% | 15.4% | MBB | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 3.1% | 10.8% | MBB | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −17.4% | −31.7% | MBB | Deepest fall from a high to the low after it. |
| Risk-adjusted | ||||
| Sharpe | −0.07 | 0.59 | NOBL | Return above Treasury bills per unit of volatility. |
| Sortino | −0.10 | 0.84 | NOBL | Return above Treasury bills per unit of downside deviation. |
| Calmar | 0.09 | 0.33 | NOBL | Annualized return divided by the max drawdown. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 679 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, MBB and NOBL 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
MBB and NOBL on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
MBB and NOBL do different jobs. What does each one do in a portfolio?
- What each follows. MBB follows Bloomberg U.S. MBS Index and NOBL follows S&P 500 Dividend Aristocrats Index.
- Holdings in common. 0% of the weight is in the same securities (holdings dated Oct 27, 2026).
- One-year total return. Over 1 year to Oct 28, 2026 MBB returned −0.8% and NOBL +15.5% with distributions reinvested, a gap of 16.3 points.
Data as of Oct 28, 2026.
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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.
NOBL
NOBL tracks the S&P 500 Dividend Aristocrats. Over the year to Oct 28, 2026 it returned +15.5% with distributions reinvested. The prospectus expense ratio is 0.35% a year. By its holdings published by its issuer for Oct 27, 2026, 98% of the fund by weight is stocks the S&P 500 also holds, across 69 positions, with the top ten at 17.0%.
Questions people ask
- Which returned more over the last year, MBB or NOBL?
- In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and NOBL +15.5%.
- Which is cheaper, MBB or NOBL?
- MBB is cheaper, by 0.31 percentage points a year. That is about $31 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, MBB against NOBL, data as of Oct 28, 2026. https://etfiq.com/compare/any/mbb-vs-nobl
ETFIQ. (Oct 28, 2026). MBB against NOBL. Retrieved from https://etfiq.com/compare/any/mbb-vs-nobl
[MBB against NOBL (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/mbb-vs-nobl)
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