Data as of Oct 28, 2026.
FNDX vs XBI: Differences, Returns & Fees
Over the year to Oct 28, 2026, FNDX returned +23.9% to XBI's +41.2%, and FNDX charges 0.25% to XBI's 0.35%.
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Net assets: $27.6bn on Aug 31, 2026 for Schwab Fundamental U.S. Large Company ETF, and $10.3bn on Oct 27, 2026 for State Street SPDR S&P Biotech ETF.
Pair scorecard
FNDX costs 0.10 points a year less; their one-year returns differ by 17.3 points.
| Measure | FNDX | XBI |
|---|---|---|
| Return | ||
| Total return, 1 year | +23.9% | +41.2% |
| Drawdown | ||
| Below its all-time high | 8.9%, high on Feb 8, 2021 | |
| Benchmark | ||
| What it tracks | Fundamental U.S. Large Company | Biotech |
| Cost and size | ||
| Expense ratio | 0.25% | 0.35% |
| Net assets, FNDX as of Aug 31, 2026 and XBI as of Oct 27, 2026 | $27.6bn | $10.3bn |
| Active share vs the S&P 500 | 98% | |
| Holdings | ||
| Holdings in common | 2% | |
| Top ten holdings, share of the fund | 21.0% | 18% |
Holdings in common uses holdings dated Aug 31, 2026 and Oct 27, 2026. Method
What they share
By the books each fund has filed, FNDX and XBI hold 2% of their money in the same securities at the same weight. Holdings dated Aug 31, 2026 and Oct 27, 2026.
half
2% in common
Only in one fund ↓
Side by side
FNDX and XBI on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
Over the year to Oct 28, 2026 it returned +23.9% with distributions reinvested, against +13.1% for its benchmark, the Russell 1000 Index.
FNDX tracks an index of Fundamental U.S. Large Company. The prospectus expense ratio is 0.25% a year. By its holdings filed for Aug 31, 2026, 88% of the fund by weight is stocks the S&P 500 also holds, across 731 positions, with the top ten at 21.0%.
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.
Questions people ask
- Are FNDX and XBI in the same category?
- FNDX is a stock ETF and XBI is a thematic ETF, so they do different jobs. The table compares what both publish: return, cost and holdings.
- Which returned more over the last year, FNDX or XBI?
- In the year to Oct 28, 2026, with distributions reinvested, FNDX returned +23.9% and XBI +41.2%.
- Which is cheaper, FNDX or XBI?
- FNDX is cheaper, by 0.10 percentage points a year. That is about $10 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, FNDX against XBI, data as of Oct 28, 2026. https://etfiq.com/compare/any/fndx-vs-xbi
ETFIQ. (Oct 28, 2026). FNDX against XBI. Retrieved from https://etfiq.com/compare/any/fndx-vs-xbi
[FNDX against XBI (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/fndx-vs-xbi)
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