IBB vs QQEW: Holdings Overlap
iShares · 254 holdings · $9.3B · as of 2026-03-31
QQEWFirst Trust Nasdaq-100 Select Equal Weight ETF
First Trust · 51 holdings · $1.8B · as of 2026-03-31
How similar are IBB and QQEW?
iShares Biotechnology ETF (IBB, by iShares) holds 254 positions; First Trust Nasdaq-100 Select Equal Weight ETF (QQEW, by First Trust) holds 51. They have 5 holdings in common, and by portfolio weight the two funds are 10.5% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 10.5%Sum of the smaller weight of each shared holding
- Shared Holdings
- 5IBB holds 254 · QQEW holds 51
- Weight in Shared Holdings
- IBB 34%·QQEW 10%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 IBB
249 of 254 positions (66.0% of the fund) are not held by QQEW. Showing the top 30 by weight.
Sector Breakdown
| Sector | IBB | QQEW |
|---|---|---|
| Health Care | 91.0% | 16.3% |
| Information Technology | 0.0% | 49.6% |
| Consumer Discretionary | 0.0% | 12.4% |
| Communication Services | 0.0% | 10.0% |
| Industrials | 0.0% | 7.7% |
| Other Sectors | 0.0% | 3.9% |
| Unclassified | 8.9% | 0.0% |
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 (9% of IBB, 0% of QQEW).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IBB | -0.3% | +17.3% | +51.0% | +16.4% | +3.1% | +7.4% | 0.21% |
| QQEW | +2.5% | +14.0% | +19.6% | +14.5% | +7.7% | +14.2% | 0.20% |
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 IBB vs QQEW →
Shared Holdings(5)
The top 5 shared positions account for 100% of the overlap, led by ALNY, REGN and GILD.
 ALNYAlnylam Pharmaceuticals Inc. COM | 3.99% | 2.16% | 2.16% |
|---|---|---|---|
 REGNRegeneron Pharmaceuticals, Inc. COM | 7.21% | 2.15% | 2.15% |
 GILDGilead Sciences Inc. COM | 7.75% | 2.07% | 2.07% |
 AMGNAmgen Inc. COM | 7.51% | 2.07% | 2.07% |
 VRTXVertex Pharmaceuticals Incorporated COM | 7.44% | 2.01% | 2.01% |
Frequently Asked Questions
How much do IBB and QQEW overlap?
IBB and QQEW overlap by 10.5% of portfolio weight. They share 5 holdings (IBB holds 254 positions and QQEW holds 51), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IBB and QQEW?
The two portfolios are 10.5% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of IBB and QQEW?
The largest positions held by both funds are ALNY, REGN, GILD, AMGN and VRTX. Together the top 5 shared positions account for 100% of the total overlap.
What does IBB own that QQEW doesn't?
249 positions (66.0% of IBB) are unique to IBB, led by INSM, ARGX and BIIB. In the other direction, 46 positions (89.5% of QQEW) are unique to QQEW.