ETF comparison
SPAB vs VGLT
US Aggregate Bond vs US Treasury (Long).
State Street SPDR Portfolio Aggregate Bond Index ETF · Vanguard Long-Term Treasury Index Fund ETF Shares
Holdings overlap
75 positions appear in both funds. Buying equal dollars of SPAB and VGLT would leave roughly 9.9% 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
Expense ratios are effectively identical (0.030% vs 0.030%).
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 SPAB vs VGLT.
Top shared holdings
75 shared in total| # | Holding | In SPAB | In VGLT | Overlap |
|---|---|---|---|---|
| 1 | United States Treasury | 0.32% | 1.30% | 0.32% |
| 2 | United States Treasury | 0.26% | 1.09% | 0.26% |
| 3 | United States Treasury | 0.26% | 1.36% | 0.26% |
| 4 | United States Treasury | 0.25% | 2.09% | 0.25% |
| 5 | United States Treasury | 0.25% | 2.09% | 0.25% |
| 6 | United States Treasury | 0.24% | 2.10% | 0.24% |
| 7 | United States Treasury | 0.24% | 1.36% | 0.24% |
| 8 | United States Treasury | 0.23% | 2.15% | 0.23% |
| 9 | United States Treasury | 0.23% | 1.99% | 0.23% |
| 10 | United States Treasury | 0.23% | 2.18% | 0.23% |
| 11 | United States Treasury | 0.23% | 2.13% | 0.23% |
| 12 | United States Treasury | 0.22% | 1.07% | 0.22% |
Only in SPAB
8,210 total- United States Treasury 0.79%
- United States Treasury 0.44%
- United States Treasury 0.43%
- United States Treasury 0.42%
- United States Treasury 0.40%
- United States Treasury 0.40%
- United States Treasury 0.39%
- United States Treasury 0.38%
- United States Treasury 0.37%
- United States Treasury 0.37%
Only in VGLT
24 total- United States Treasury Note/Bond 1.21%
- United States Treasury Note/Bond 0.87%
- United States Treasury Note/Bond 0.82%
- United States Treasury Note/Bond 0.65%
- United States Treasury Note/Bond 0.63%
- United States Treasury Note/Bond 0.61%
- United States Treasury Note/Bond 0.59%
- United States Treasury Note/Bond 0.43%
- United States Treasury Note/Bond 0.41%
- United States Treasury Note/Bond 0.39%
Related comparisons
More comparisons with SPAB
- SPAB vs VMBS · Vanguard Mortgage-Backed Securities Index Fund ETF Shares 9.4%
- SPAB vs CGCP · Capital Group Core Plus Income ETF 7.7%
- SPAB vs JCPB · JPMorgan Core Plus Bond ETF 6.7%
- SPAB vs MBB · iShares MBS ETF 5.8%
- SPAB vs TLT · iShares 20+ Year Treasury Bond ETF 4.9%
- SPAB vs BOND · PIMCO Active Bond Exchange-Traded Fund 3.2%
More comparisons with VGLT
- VGLT vs EAGG · iShares ESG U.S. Aggregate Bond ETF 9.5%
- VGLT vs SCHZ · Schwab U.S. Aggregate Bond ETF 9.5%
- VGLT vs AGG · iShares Core U.S. Aggregate Bond ETF 9.3%
- VGLT vs IUSB · iShares Core Universal USD Bond ETF 7.7%
- VGLT vs VCRB · Vanguard Core Bond ETF 7.1%
- VGLT vs JCPB · JPMorgan Core Plus Bond ETF 6.9%
Percentages are holdings overlap with the named fund.
Open SPAB or VGLT 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.