ETF comparison
BLV vs TLT
US Aggregate Bond vs US Treasury (Long).
Vanguard Long-Term Bond Fund · iShares 20+ Year Treasury Bond ETF
Holdings overlap
45 positions appear in both funds. Buying equal dollars of BLV and TLT would leave roughly 27.7% 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
BLV 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 BLV vs TLT.
Top shared holdings
45 shared in total| # | Holding | In BLV | In TLT | Overlap |
|---|---|---|---|---|
| 1 | United States Treasury Note/Bond | 1.23% | 4.46% | 1.23% |
| 2 | United States Treasury Note/Bond | 1.21% | 2.90% | 1.21% |
| 3 | United States Treasury Note/Bond | 1.18% | 4.50% | 1.18% |
| 4 | United States Treasury Note/Bond | 1.18% | 3.46% | 1.18% |
| 5 | United States Treasury Note/Bond | 1.18% | 4.40% | 1.18% |
| 6 | United States Treasury Note/Bond | 1.14% | 4.03% | 1.14% |
| 7 | United States Treasury Note/Bond | 1.13% | 4.25% | 1.13% |
| 8 | United States Treasury Note/Bond | 1.10% | 3.80% | 1.10% |
| 9 | United States Treasury Note/Bond | 0.98% | 1.32% | 0.98% |
| 10 | United States Treasury Note/Bond | 0.97% | 4.58% | 0.97% |
| 11 | United States Treasury Note/Bond | 0.93% | 3.62% | 0.93% |
| 12 | United States Treasury Note/Bond | 0.82% | 1.01% | 0.82% |
Only in BLV
2,968 total- United States Treasury Note/Bond 0.93%
- United States Treasury Note/Bond 0.87%
- United States Treasury Note/Bond 0.86%
- United States Treasury Note/Bond 0.81%
- United States Treasury Note/Bond 0.80%
- United States Treasury Note/Bond 0.77%
- United States Treasury Note/Bond 0.76%
- United States Treasury Note/Bond 0.73%
- United States Treasury Note/Bond 0.70%
- United States Treasury Note/Bond 0.69%
Only in TLT
1 total- BlackRock Funds III 1.15%
Open BLV 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.