ETF comparison
SPTL vs TLT
Both US Treasury (Long).
State Street SPDR Portfolio Long Term Treasury ETF · iShares 20+ Year Treasury Bond ETF
Holdings overlap
45 positions appear in both funds. Buying equal dollars of SPTL and TLT would leave roughly 49.7% 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
SPTL 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 SPTL vs TLT.
Top shared holdings
45 shared in total| # | Holding | In SPTL | In TLT | Overlap |
|---|---|---|---|---|
| 1 | United States Treasury | 2.31% | 4.46% | 2.31% |
| 2 | United States Treasury | 2.29% | 2.90% | 2.29% |
| 3 | United States Treasury | 2.25% | 4.40% | 2.25% |
| 4 | United States Treasury | 2.23% | 3.80% | 2.23% |
| 5 | United States Treasury | 2.21% | 4.50% | 2.21% |
| 6 | United States Treasury | 2.20% | 3.46% | 2.20% |
| 7 | United States Treasury | 2.13% | 4.03% | 2.13% |
| 8 | United States Treasury | 2.09% | 4.25% | 2.09% |
| 9 | United States Treasury | 1.88% | 4.58% | 1.88% |
| 10 | United States Treasury | 1.67% | 3.62% | 1.67% |
| 11 | United States Treasury | 1.57% | 2.69% | 1.57% |
| 12 | United States Treasury | 1.54% | 3.86% | 1.54% |
Only in SPTL
53 total- United States Treasury 1.58%
- United States Treasury 1.50%
- United States Treasury 1.46%
- United States Treasury 1.46%
- United States Treasury 1.41%
- United States Treasury 1.41%
- United States Treasury 1.40%
- United States Treasury 1.40%
- United States Treasury 1.40%
- United States Treasury 1.34%
Only in TLT
1 total- BlackRock Funds III 1.15%
Open SPTL 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.