QQQM vs XBI: how much do they overlap?
Invesco NASDAQ 100 ETF (QQQM) · SPDR S&P Biotech ETF (XBI)
overlap by weight · 6 shared holdings
QQQM: 101 holdings (as of 2026-02-28) · XBI: 149 holdings (as of 09-Jul-2026)
Note: the two funds' latest official filings have different dates, which can understate overlap slightly for funds tracking similar indexes.
Low overlap
What this means
QQQM and XBI hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Overlap by weight sums the smaller of the two funds' weights for every stock they both hold — it answers "how much of my money is in the same stocks either way?" See methodology.
Top shared holdings
| Company | Ticker | in QQQM | in XBI |
|---|---|---|---|
| Gilead Sciences, Inc. | GILD | 0.99% | 0.99% |
| Amgen Inc. | AMGN | 1.12% | 0.96% |
| Vertex Pharmaceuticals Inc. | VRTX | 0.68% | 1.02% |
| Regeneron Pharmaceuticals, Inc. | REGN | 0.43% | 0.99% |
| Alnylam Pharmaceuticals, Inc. | ALNY | 0.24% | 0.96% |
| Insmed Inc. | INSM | 0.17% | 1.15% |
FAQ
How much do QQQM and XBI overlap?
QQQM and XBI have a 3.5% overlap by weight, sharing 6 holdings (out of 101 in QQQM and 149 in XBI), based on official issuer holdings as of 2026-02-28.
What does 3.5% overlap mean?
QQQM and XBI hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Which stocks do QQQM and XBI both hold?
The largest shared positions are Gilead Sciences, Inc., Amgen Inc., Vertex Pharmaceuticals Inc., Regeneron Pharmaceuticals, Inc., Alnylam Pharmaceuticals, Inc.. The full list of top shared holdings with weights in each fund is shown on this page.