FHLC vs IBB: Holdings Overlap
FHLCFidelity MSCI Health Care Index ETF
Fidelity · 337 holdings · $3.3B · as of 2026-04-30
iShares · 254 holdings · $9.3B · as of 2026-03-31
Holdings snapshots are 30 days apart (FHLC: 2026-04-30, IBB: 2026-03-31). 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 FHLC and IBB?
Fidelity MSCI Health Care Index ETF (FHLC, by Fidelity) holds 337 positions; iShares Biotechnology ETF (IBB, by iShares) holds 254. They have 151 holdings in common, and by portfolio weight the two funds are 17.8% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 17.8%Sum of the smaller weight of each shared holding
- Shared Holdings
- 151FHLC holds 337 · IBB holds 254
- Weight in Shared Holdings
- FHLC 18%·IBB 87%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 FHLC
186 of 337 positions (81.8% of the fund) are not held by IBB. Showing the top 30 by weight.
Sector Breakdown
| Sector | FHLC | IBB |
|---|---|---|
| Health Care | 99.6% | 91.0% |
| Other Sectors | 0.0% | 0.0% |
| Unclassified | 0.0% | 8.9% |
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 (0% of FHLC, 9% of IBB).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| FHLC | +0.7% | +9.3% | +33.0% | +10.0% | +5.3% | +10.1% | 1.26% |
| IBB | -0.3% | +17.3% | +51.0% | +16.4% | +3.1% | +7.4% | 0.21% |
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 FHLC vs IBB →
Shared Holdings(151)
The top 10 shared positions account for 64% of the overlap, led by AMGN, GILD and VRTX.
 AMGNAmgen, Inc. | 3.01% | 7.51% | 3.01% |
|---|---|---|---|
 GILDGilead Sciences, Inc. | 2.62% | 7.75% | 2.62% |
 VRTXVertex Pharmaceuticals, Inc. | 1.75% | 7.44% | 1.75% |
 REGNRegeneron Pharmaceuticals, Inc. | 1.18% | 7.21% | 1.18% |
 ALNYAlnylam Pharmaceuticals, Inc. | 0.66% | 3.99% | 0.66% |
 INSMInsmed, Inc. | 0.47% | 3.20% | 0.47% |
 BIIBBiogen, Inc. | 0.45% | 2.46% | 0.45% |
 NTRANatera, Inc. | 0.44% | 2.41% | 0.44% |
 UTHRUnited Therapeutics Corp. | 0.38% | 2.30% | 0.38% |
 RVMDRevolution Medicines, Inc. | 0.38% | 1.54% | 0.38% |
 ILMNIllumina, Inc. | 0.31% | 1.68% | 0.31% |
 MRNAModerna, Inc. | 0.26% | 1.68% | 0.26% |
 INCYIncyte Corp. | 0.26% | 1.70% | 0.26% |
 NBIXNeurocrine Biosciences, Inc. | 0.21% | 1.18% | 0.21% |
 IONSIonis Pharmaceuticals, Inc. | 0.19% | 1.11% | 0.19% |
 EXELExelixis, Inc. | 0.18% | 0.99% | 0.18% |
 ROIVRoivant Sciences Ltd. | 0.17% | 1.24% | 0.17% |
 BBIOBridgebio Pharma, Inc. | 0.17% | 1.13% | 0.17% |
 BMRNBioMarin Pharmaceutical, Inc. | 0.16% | 0.98% | 0.16% |
 MEDPMedpace Holdings, Inc. | 0.15% | 1.00% | 0.15% |
 ARWRArrowhead Pharmaceuticals, Inc. | 0.15% | 0.75% | 0.15% |
 TECHBio-Techne Corp. | 0.14% | 0.74% | 0.14% |
 CRLCharles River Laboratories International, Inc. | 0.13% | 0.77% | 0.13% |
 MDGLMadrigal Pharmaceuticals, Inc. | 0.12% | 1.00% | 0.12% |
 HALOHalozyme Therapeutics, Inc. | 0.12% | 0.69% | 0.12% |
Frequently Asked Questions
How much do FHLC and IBB overlap?
FHLC and IBB overlap by 17.8% of portfolio weight. They share 151 holdings (FHLC holds 337 positions and IBB holds 254), based on each fund's latest SEC-reported holdings.
Is it redundant to own both FHLC and IBB?
The two portfolios are 17.8% 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 FHLC and IBB?
The largest positions held by both funds are AMGN, GILD, VRTX, REGN and ALNY. Together the top 10 shared positions account for 64% of the total overlap.
What does FHLC own that IBB doesn't?
186 positions (81.8% of FHLC) are unique to FHLC, led by LLY, JNJ and ABBV. In the other direction, 103 positions (13.3% of IBB) are unique to IBB.