ETF comparison
BBSC vs SPSM
Both US Small Cap.
JPMorgan BetaBuilders U.S. Small Cap Equity ETF · State Street SPDR Portfolio S&P 600 Small Cap ETF
Holdings overlap
455 positions appear in both funds. Buying equal dollars of BBSC and SPSM would leave roughly 52.4% 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
SPSM is 6 bps cheaper than BBSC. On a $100,000 position that's about $60/yr more in fees for BBSC.
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 SPSM.
Top shared holdings
455 shared in total| # | Holding | In BBSC | In SPSM | Overlap |
|---|---|---|---|---|
| 1 | Corcept Therapeutics, Inc. | 0.44% | 0.45% | 0.44% |
| 2 | Brinker International, Inc. | 0.36% | 0.39% | 0.36% |
| 3 | BrightSpring Health Services, Inc. | 0.35% | 0.60% | 0.35% |
| 4 | Krystal Biotech, Inc. | 0.34% | 0.53% | 0.34% |
| 5 | Viasat, Inc. | 0.33% | 0.66% | 0.33% |
| 6 | StoneX Group, Inc. | 0.32% | 0.45% | 0.32% |
| 7 | FormFactor, Inc. | 0.32% | 0.68% | 0.32% |
| 8 | ESCO Technologies, Inc. | 0.31% | 0.49% | 0.31% |
| 9 | SM Energy Co. | 0.30% | 0.32% | 0.30% |
| 10 | Argan, Inc. | 0.29% | 0.60% | 0.29% |
| 11 | Ralliant Corp. | 0.29% | 0.45% | 0.29% |
| 12 | Protagonist Therapeutics, Inc. | 0.28% | 0.40% | 0.28% |
Only in BBSC
397 total- Moog, Inc. 0.43%
- 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%
- Crinetics Pharmaceuticals, Inc. 0.34%
- JFrog Ltd. 0.32%
- Compass, Inc. 0.31%
- Spyre Therapeutics, Inc. 0.30%
Only in SPSM
149 total- Molina Healthcare Inc 0.65%
- Element Solutions Inc 0.59%
- Match Group Inc 0.48%
- Alkermes PLC 0.47%
- Glaukos Corp 0.45%
- Ryman Hospitality Properties Inc 0.44%
- Federal Signal Corp 0.43%
- Eastman Chemical Co 0.42%
- JBT Marel Corp 0.41%
- Zurn Elkay Water Solutions Corp 0.41%
Related comparisons
More comparisons with BBSC
- BBSC vs IJR · iShares Core S&P Small-Cap ETF 51.9%
- BBSC vs VIOO · Vanguard S&P Small-Cap 600 Index Fund ETF Shares 51.0%
- BBSC vs SCHA · Schwab U.S. Small-Cap ETF 50.5%
- BBSC vs DFAS · U.S. Small Cap Portfolio-ETF Class Shares 44.9%
- BBSC vs IWO · iShares Russell 2000 Growth ETF 44.7%
- BBSC vs IWN · iShares Russell 2000 Value ETF 38.7%
More comparisons with SPSM
- SPSM vs IWM · iShares Russell 2000 ETF 47.1%
- SPSM vs IWN · iShares Russell 2000 Value ETF 43.5%
- SPSM vs IWO · iShares Russell 2000 Growth ETF 40.6%
- SPSM vs VTWO · Vanguard Russell 2000 Index Fund ETF Shares 40.4%
- SPSM vs FNDA · Schwab Fundamental U.S. Small Company ETF 35.7%
- SPSM vs DFAS · U.S. Small Cap Portfolio-ETF Class Shares 34.3%
Percentages are holdings overlap with the named fund.
Open BBSC or SPSM 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.