ETF comparison
DFCF vs SPMB
Both US Aggregate Bond.
Dimensional Core Fixed Income ETF · State Street SPDR Portfolio Mortgage Backed Bond ETF
Holdings overlap
0 positions appear in both funds. Buying equal dollars of DFCF and SPMB would leave roughly 0.0% 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
SPMB is 13 bps cheaper than DFCF. On a $100,000 position that's about $130/yr more in fees for DFCF.
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 DFCF vs SPMB.
Top shared holdings
0 shared in totalNo shared holdings between these funds.
Only in DFCF
1,770 total- Federal National Mortgage Association 6.19%
- Federal National Mortgage Association 5.34%
- United States of America 4.70%
- Federal National Mortgage Association 4.10%
- United States of America 3.07%
- Government National Mortgage Association 2 3.00%
- United States of America 2.94%
- United States of America 2.93%
- Federal National Mortgage Association 2.85%
- United States of America 2.25%
Only in SPMB
2,699 total- Freddie Mac 1.17%
- Fannie Mae 0.79%
- Freddie Mac 0.76%
- UMBS, TBA 0.63%
- Freddie Mac 0.61%
- Freddie Mac 0.55%
- Government National Mortgage Association 0.55%
- Fannie Mae 0.51%
- Fannie Mae 0.49%
- Fannie Mae 0.47%
Related comparisons
More comparisons with DFCF
- DFCF vs TIP · iShares TIPS Bond ETF 0.0%
- DFCF vs VMBS · Vanguard Mortgage-Backed Securities Index Fund ETF Shares 0.0%
- DFCF vs VTIP · Vanguard Short-Term Inflation-Protected Securities Index Fund ETF Shares 0.0%
- DFCF vs BIV · Vanguard Intermediate-Term Bond Index Fund ETF Shares 20.9%
- DFCF vs GVI · iShares Intermediate Government/Credit Bond ETF 18.9%
- DFCF vs BND · Vanguard Total Bond Market Index Fund ETF Shares 16.6%
More comparisons with SPMB
- SPMB vs FLOT · iShares Floating Rate Bond ETF 0.0%
- SPMB vs GOVT · iShares U.S. Treasury Bond ETF 0.0%
- SPMB vs GVI · iShares Intermediate Government/Credit Bond ETF 0.0%
- SPMB vs ICSH · iShares Ultra Short Duration Bond Active ETF 0.0%
- SPMB vs JAAA · Janus Henderson AAA CLO ETF 0.0%
- SPMB vs JPST · JPMorgan Ultra-Short Income ETF 0.0%
Percentages are holdings overlap with the named fund.
Open DFCF or SPMB 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.