ETF comparison
FBND vs SPAB
Both US Aggregate Bond.
Fidelity Total Bond ETF · State Street SPDR Portfolio Aggregate Bond ETF
Holdings overlap
530 positions appear in both funds. Buying equal dollars of FBND and SPAB would leave roughly 16.3% of each dollar exposed to the same underlying securities.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
SPAB is 33 bps cheaper than FBND. On a $100,000 position that's about $330/yr more in fees for FBND.
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 FBND vs SPAB.
Top shared holdings
530 shared in total| # | Holding | In FBND | In SPAB | Overlap |
|---|---|---|---|---|
| 1 | UST NOTES | 0.96% | 0.42% | 0.42% |
| 2 | UST NOTES | 0.94% | 0.39% | 0.39% |
| 3 | UST NOTES | 2.23% | 0.37% | 0.37% |
| 4 | UST NOTES | 1.53% | 0.37% | 0.37% |
| 5 | UST NOTES | 2.12% | 0.36% | 0.36% |
| 6 | UST NOTES | 1.30% | 0.36% | 0.36% |
| 7 | UST NOTES | 0.50% | 0.35% | 0.35% |
| 8 | UST NOTES | 0.37% | 0.34% | 0.34% |
| 9 | UST NOTES | 0.51% | 0.33% | 0.33% |
| 10 | UST NOTES | 0.57% | 0.30% | 0.30% |
| 11 | UST NOTES | 0.57% | 0.29% | 0.29% |
| 12 | UNITED STATES TREASURY BOND | 0.42% | 0.29% | 0.29% |
Only in FBND
3,862 total- Fidelity Revere Street Trust 2.92%
- GNMA II GTD PASS THRU CTF MULTIPLE ISSUER 1.32%
- GNMA II GTD PASS THRU CTF MULTIPLE ISSUER 1.04%
- FNMA/FHLG TBA ISSUER 0.80%
- FNMA/FHLG TBA ISSUER 0.77%
- FNMA/FHLG TBA ISSUER 0.76%
- GNMA II GTD PASS THRU CTF MULTIPLE ISSUER 0.54%
- FNMA/FHLG TBA ISSUER 0.48%
- MORGAN STANLEY 0.31%
- WELLS FARGO and CO 0.30%
Only in SPAB
7,798 total- State Street Global Advisors 1.15%
- United States Treasury 0.85%
- United States Treasury 0.45%
- United States Treasury 0.44%
- United States Treasury 0.43%
- UMBS, TBA 0.38%
- United States Treasury 0.37%
- United States Treasury 0.36%
- United States Treasury 0.34%
- United States Treasury 0.33%
Open FBND or SPAB 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.