IBB vs IJT: Holdings Overlap
iShares · 254 holdings · $9.3B · as of 2026-03-31
IJTiShares S&P Small-Cap 600 Growth ETF
iShares · 341 holdings · $8.5B · as of 2026-03-31
How similar are IBB and IJT?
iShares Biotechnology ETF (IBB, by iShares) holds 254 positions; iShares S&P Small-Cap 600 Growth ETF (IJT, by iShares) holds 341. They have 15 holdings in common, and by portfolio weight the two funds are 3.9% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 3.9%Sum of the smaller weight of each shared holding
- Shared Holdings
- 15IBB holds 254 · IJT holds 341
- Weight in Shared Holdings
- IBB 4%·IJT 5%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
239 of 254 positions (95.9% of the fund) are not held by IJT. Showing the top 30 by weight.
Sector Breakdown
| Sector | IBB | IJT |
|---|---|---|
| Health Care | 91.0% | 15.2% |
| Industrials | 0.0% | 22.0% |
| Information Technology | 0.0% | 15.7% |
| Financials | 0.0% | 14.3% |
| Consumer Discretionary | 0.0% | 10.8% |
| Other Sectors | 0.0% | 20.3% |
| Unclassified | 8.9% | 1.0% |
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, 1% of IJT).
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% |
| IJT | +1.2% | +25.8% | +33.4% | +15.2% | +6.7% | +11.1% | 0.68% |
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 IJT →
Shared Holdings(15)
The top 10 shared positions account for 94% of the overlap, led by KRYS, PTGX and ALKS.
 KRYSKrystal Biotech, Inc. | 0.60% | 0.88% | 0.60% |
|---|---|---|---|
 PTGXProtagonist Therapeutics, Inc. | 0.58% | 0.82% | 0.58% |
 ALKSAlkermes plc | 0.53% | 0.77% | 0.53% |
 PTCTPTC Therapeutics, Inc. | 0.50% | 0.73% | 0.50% |
 1JKApellis Pharmaceuticals, Inc. | 0.39% | 0.55% | 0.39% |
 ACADACADIA Pharmaceuticals, Inc. | 0.34% | 0.37% | 0.34% |
 VCYTVeracyte, Inc. | 0.23% | 0.34% | 0.23% |
 ADMAADMA Biologics, Inc. | 0.19% | 0.28% | 0.19% |
 SRPTSarepta Therapeutics, Inc. | 0.20% | 0.18% | 0.18% |
 RCUSArcus Biosciences, Inc. | 0.16% | 0.15% | 0.15% |
 VCELVericel Corp. | 0.15% | 0.22% | 0.15% |
 VIRVir Biotechnology, Inc. | 0.08% | 0.06% | 0.06% |
| Cytek Biosciences, Inc. | 0.05% | 0.04% | 0.04% |
 2200964DOmniAb, Inc., 15.00 Earnout Shares | 0.00% | 0.00% | 0.00% |
 2200963DOmniAb, Inc., 12.50 Earnout Shares | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
How much do IBB and IJT overlap?
IBB and IJT overlap by 3.9% of portfolio weight. They share 15 holdings (IBB holds 254 positions and IJT holds 341), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IBB and IJT?
The two portfolios are 3.9% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of IBB and IJT?
The largest positions held by both funds are KRYS, PTGX, ALKS, PTCT and 1JK. Together the top 10 shared positions account for 94% of the total overlap.
What does IBB own that IJT doesn't?
239 positions (95.9% of IBB) are unique to IBB, led by GILD, AMGN and VRTX. In the other direction, 326 positions (94.0% of IJT) are unique to IJT.