ETF comparison
SPAB vs TLT
US Aggregate Bond vs US Treasury (Long).
State Street SPDR Portfolio Aggregate Bond ETF · iShares 20+ Year Treasury Bond ETF
Holdings overlap
41 positions appear in both funds. Buying equal dollars of SPAB and TLT would leave roughly 4.9% 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
SPAB is 12 bps cheaper than TLT. On a $100,000 position that's about $120/yr more in fees for TLT.
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 TLT.
Top shared holdings
41 shared in total| # | Holding | In SPAB | In TLT | Overlap |
|---|---|---|---|---|
| 1 | United States Treasury | 0.25% | 3.95% | 0.25% |
| 2 | United States Treasury | 0.25% | 2.54% | 0.25% |
| 3 | United States Treasury | 0.24% | 3.80% | 0.24% |
| 4 | United States Treasury | 0.23% | 4.46% | 0.23% |
| 5 | United States Treasury | 0.23% | 4.03% | 0.23% |
| 6 | United States Treasury | 0.23% | 0.54% | 0.23% |
| 7 | United States Treasury | 0.23% | 2.90% | 0.23% |
| 8 | United States Treasury | 0.21% | 4.40% | 0.21% |
| 9 | United States Treasury | 0.21% | 4.50% | 0.21% |
| 10 | United States Treasury | 0.20% | 3.94% | 0.20% |
| 11 | United States Treasury | 0.20% | 3.46% | 0.20% |
| 12 | United States Treasury | 0.19% | 4.58% | 0.19% |
Only in SPAB
8,244 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 TLT
5 total- United States of America 4.04%
- United States of America 0.94%
- United States of America 0.42%
- United States of America 0.39%
- United States of America 0.00%
Related comparisons
More comparisons with SPAB
- SPAB vs BOND · PIMCO Active Bond Exchange-Traded Fund 3.2%
- SPAB vs NEAR · iShares Short Duration Bond Active ETF 3.0%
- SPAB vs PYLD · PIMCO ETF Trust - PIMCO Multisector Bond Active Exchange-Traded Fund 2.1%
- SPAB vs VUSB · Vanguard Ultra-Short Bond ETF 1.8%
- SPAB vs JPST · JPMorgan Ultra-Short Income ETF 1.4%
- SPAB vs ICSH · iShares Ultra Short Duration Bond Active ETF 0.7%
More comparisons with TLT
- TLT vs IUSB · iShares Core Universal USD Bond ETF 4.1%
- TLT vs VCRB · Vanguard Core Bond ETF 4.0%
- TLT vs JCPB · JPMorgan Core Plus Bond ETF 3.3%
- TLT vs CGCP · Capital Group Core Plus Income ETF 2.5%
- TLT vs CORP · PIMCO Investment Grade Corporate Bond Index Exchange-Traded Fund 1.8%
- TLT vs PYLD · PIMCO ETF Trust - PIMCO Multisector Bond Active Exchange-Traded Fund 0.6%
Percentages are holdings overlap with the named fund.
Open SPAB or TLT 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.