ETF comparison
BBSC vs IWO
Both US Small Cap.
JPMorgan BetaBuilders U.S. Small Cap Equity ETF · iShares Russell 2000 Growth ETF
Holdings overlap
455 positions appear in both funds. Buying equal dollars of BBSC and IWO would leave roughly 44.7% of each dollar exposed to the same underlying securities.
Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
BBSC is 15 bps cheaper than IWO. On a $100,000 position that's about $150/yr more in fees for IWO.
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with BBSC vs IWO.
Top shared holdings
455 shared in total| # | Holding | In BBSC | In IWO | Overlap |
|---|---|---|---|---|
| 1 | Moog, Inc. | 0.43% | 0.73% | 0.43% |
| 2 | Brinker International, Inc. | 0.36% | 0.44% | 0.36% |
| 3 | BrightSpring Health Services, Inc. | 0.35% | 0.68% | 0.35% |
| 4 | Krystal Biotech, Inc. | 0.34% | 0.58% | 0.34% |
| 5 | StoneX Group, Inc. | 0.32% | 0.52% | 0.32% |
| 6 | JFrog Ltd. | 0.32% | 0.59% | 0.32% |
| 7 | ESCO Technologies, Inc. | 0.31% | 0.56% | 0.31% |
| 8 | Compass, Inc. | 0.31% | 0.45% | 0.31% |
| 9 | Spyre Therapeutics, Inc. | 0.30% | 0.40% | 0.30% |
| 10 | Argan, Inc. | 0.29% | 0.66% | 0.29% |
| 11 | Cipher Digital, Inc. | 0.29% | 0.50% | 0.29% |
| 12 | Protagonist Therapeutics, Inc. | 0.28% | 0.45% | 0.28% |
Only in BBSC
397 total- Corcept Therapeutics, Inc. 0.44%
- Semtech Corp. 0.43%
- American Healthcare REIT, Inc. 0.41%
- Arrowhead Pharmaceuticals, Inc. 0.41%
- CareTrust REIT, Inc. 0.35%
- DigitalOcean Holdings, Inc. 0.34%
- Viasat, Inc. 0.33%
- FormFactor, Inc. 0.32%
- Ralliant Corp. 0.29%
- Terawulf, Inc. 0.29%
Only in IWO
678 total- FirstCash Holdings, Inc. 0.53%
- D-Wave Quantum, Inc. 0.53%
- EnerSys 0.49%
- Ryman Hospitality Properties, Inc. 0.48%
- Glaukos Corp. 0.48%
- TG Therapeutics, Inc. 0.48%
- Federal Signal Corp. 0.47%
- Zurn Elkay Water Solutions Corp. 0.46%
- HealthEquity, Inc. 0.46%
- Hims & Hers Health, Inc. 0.45%
Related comparisons
More comparisons with BBSC
- BBSC vs IWN · iShares Russell 2000 Value ETF 38.7%
- BBSC vs FNDA · Schwab Fundamental U.S. Small Company ETF 38.1%
- BBSC vs IJS · iShares S&P Small-Cap 600 Value ETF 35.1%
- BBSC vs VIOG · Vanguard S&P Small-Cap 600 Growth Index Fund ETF Shares 34.8%
- BBSC vs VIOV · Vanguard S&P Small-Cap 600 Value Index Fund ETF Shares 34.6%
- BBSC vs IJT · iShares S&P Small-Cap 600 Growth ETF 33.6%
More comparisons with IWO
- IWO vs SPSM · State Street SPDR Portfolio S&P 600 Small Cap ETF 40.6%
- IWO vs IJR · iShares Core S&P Small-Cap ETF 40.1%
- IWO vs VIOO · Vanguard S&P Small-Cap 600 Index Fund ETF Shares 37.7%
- IWO vs IJT · iShares S&P Small-Cap 600 Growth ETF 37.2%
- IWO vs VIOG · Vanguard S&P Small-Cap 600 Growth Index Fund ETF Shares 36.9%
- IWO vs SCHA · Schwab U.S. Small-Cap ETF 32.4%
Percentages are holdings overlap with the named fund.
Open BBSC or IWO at a brokerage
Both funds trade commission-free at major US brokerages.
Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.
Holdings overlap is the sum of min(weight_a, weight_b) over positions
matched on ISIN (CUSIP fallback). Methodology: see
/methodology/.
Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.