ONEQ vs XBI: Holdings Overlap
ONEQFidelity Nasdaq Composite Index ETF
Fidelity · 1022 holdings · $10.8B · as of 2026-05-31
XBIState Street® SPDR® S&P® Biotech ETF
State Street (SPDR) · 149 holdings · $10.0B · as of 2026-08-06
Holdings snapshots are 67 days apart (ONEQ: 2026-05-31, XBI: 2026-08-06). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are ONEQ and XBI?
Fidelity Nasdaq Composite Index ETF (ONEQ, by Fidelity) holds 1022 positions; State Street® SPDR® S&P® Biotech ETF (XBI, by State Street (SPDR)) holds 149. They have 111 holdings in common, and by portfolio weight the two funds are 2.6% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 2.6%Sum of the smaller weight of each shared holding
- Shared Holdings
- 111ONEQ holds 1022 · XBI holds 149
- Weight in Shared Holdings
- ONEQ 3%·XBI 90%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in ONEQ
911 of 1022 positions (96.9% of the fund) are not held by XBI. Showing the top 30 by weight.
Sector Breakdown
| Sector | ONEQ | XBI |
|---|---|---|
| Health Care | 4.4% | 95.5% |
| Information Technology | 53.0% | 0.0% |
| Communication Services | 15.2% | 0.0% |
| Consumer Discretionary | 12.5% | 0.0% |
| Consumer Staples | 4.4% | 0.0% |
| Other Sectors | 8.4% | 0.0% |
| Unclassified | 1.6% | 4.6% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts. “Unclassified” is weight we could not classify (2% of ONEQ, 5% of XBI).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| ONEQ | +3.3% | +15.4% | +26.6% | +25.1% | +13.6% | +18.8% | 0.51% |
| XBI | -4.0% | +29.2% | +85.3% | +26.3% | +4.5% | +9.5% | 0.36% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in ONEQ vs XBI →
Shared Holdings(111)
The top 10 shared positions account for 59% of the overlap, led by AMGN, GILD and VRTX.
 AMGNAmgen Inc. COM | 0.39% | 1.16% | 0.39% |
|---|---|---|---|
 GILDGilead Sciences Inc. COM | 0.36% | 1.04% | 0.36% |
 VRTXVertex Pharmaceuticals Incorporated COM | 0.25% | 1.07% | 0.25% |
 REGNRegeneron Pharmaceuticals, Inc. COM | 0.14% | 1.24% | 0.14% |
 ALNYAlnylam Pharmaceuticals Inc. COM | 0.09% | 0.72% | 0.09% |
 NTRANatera Inc. COM | 0.07% | 1.18% | 0.07% |
 RVMDRevolution Medicines Inc COM | 0.07% | 1.33% | 0.07% |
 BIIBBiogen Inc COM | 0.06% | 1.03% | 0.06% |
 UTHRUnited Therapeutics Corporation COM | 0.05% | 0.95% | 0.05% |
 INSMInsmed Inc COM PAR $.01 | 0.05% | 1.39% | 0.05% |
 ROIVRoivant Sciences Ltd SHS | 0.05% | 1.19% | 0.05% |
 MRNAModerna Inc COM | 0.04% | 1.13% | 0.04% |
 INCYIncyte Corporation. COM | 0.04% | 1.09% | 0.04% |
 NBIXNeurocrine Biosciences Inc COM | 0.03% | 0.96% | 0.03% |
 SMMTSummit Therapeutics Inc. COM | 0.03% | 0.98% | 0.03% |
 EXELExelixis, Inc. COM | 0.03% | 0.96% | 0.03% |
 BBIOBridgebio Pharma Inc COM | 0.03% | 1.19% | 0.03% |
 IONSIonis Pharmaceuticals, Inc. COM | 0.03% | 0.72% | 0.03% |
 MDGLMadrigal Pharmaceuticals Inc COM | 0.03% | 1.05% | 0.03% |
 ARWRArrowhead Pharmaceuticals Inc COM | 0.02% | 1.17% | 0.02% |
 BMRNBiomarin Pharmaceutical Inc. COM | 0.02% | 1.06% | 0.02% |
 PRAXPraxis Precision Medicines Inc COM NEW | 0.02% | 1.49% | 0.02% |
 CYTKCytokinetics Incorporated | 0.02% | 1.17% | 0.02% |
 KRYSKrystal Biotech Inc COM | 0.02% | 1.00% | 0.02% |
 ALKSAlkermes PLC COM USD0.01 | 0.02% | 1.07% | 0.02% |
Frequently Asked Questions
How much do ONEQ and XBI overlap?
ONEQ and XBI overlap by 2.6% of portfolio weight. They share 111 holdings (ONEQ holds 1022 positions and XBI holds 149), based on each fund's latest SEC-reported holdings.
Is it redundant to own both ONEQ and XBI?
The two portfolios are 2.6% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of ONEQ and XBI?
The largest positions held by both funds are AMGN, GILD, VRTX, REGN and ALNY. Together the top 10 shared positions account for 59% of the total overlap.
What does ONEQ own that XBI doesn't?
911 positions (96.9% of ONEQ) are unique to ONEQ, led by NVDA, AAPL and MSFT. In the other direction, 38 positions (9.7% of XBI) are unique to XBI.