Data as of Oct 28, 2026.
XBI vs XOP: Differences, Returns & Fees
Over the year to Oct 28, 2026, XBI returned +41.2% to XOP's +62.5%.
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askIQ about XBI and XOPNet assets on Oct 27, 2026: $10.3bn for State Street SPDR S&P Biotech ETF and $4.6bn for State Street SPDR S&P Oil & Gas Exploration & Production ETF.
Pair scorecard
Both cost 0.35% a year; their one-year returns differ by 21.3 points; XBI is 2.2 times larger.
| Measure | XBI | XOP |
|---|---|---|
| Return | ||
| Total return, 1 year | +41.2% | +62.5% |
| Drawdown | ||
| Below its all-time high | 8.9%, high on Feb 8, 2021 | |
| Below its high | 24.8%, high on Jun 23, 2014 | |
| Benchmark | ||
| What it tracks | Biotech | S&P Oil & Gas Exploration & Production Select Industry Index |
| Cost and size | ||
| Expense ratio | 0.35% | 0.35% |
| Net assets, as of Oct 27, 2026 | $10.3bn | $4.6bn |
| Active share vs the S&P 500 | 98% | |
| Holdings | ||
| Holdings in common | 0% | |
| In the S&P 500, by weight | 13% | |
| Top ten holdings, share of the fund | 18% | |
Holdings in common uses holdings dated Oct 27, 2026. Method
What they share
By the books each fund has filed, XBI and XOP 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
XBI and XOP on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
XBI
By weight, 13% of XBI's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 98%. The top ten holdings are 18% of the fund across 165 positions, as published by its issuer for Oct 27, 2026. Over the year to Oct 28, 2026 the fund returned +41.2% with distributions reinvested. It sits 8.9% below its all-time high of Feb 8, 2021.
XOP
XOP tracks the S&P Oil & Gas Exploration & Production. Over the year to Oct 28, 2026 it returned +62.5% with distributions reinvested. The prospectus expense ratio is 0.35% a year. It sat 24.8% below its high of Jun 23, 2014 on Oct 28, 2026.
Questions people ask
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, XBI against XOP, data as of Oct 28, 2026. https://etfiq.com/compare/any/xbi-vs-xop
ETFIQ. (Oct 28, 2026). XBI against XOP. Retrieved from https://etfiq.com/compare/any/xbi-vs-xop
[XBI against XOP (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/xbi-vs-xop)
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