TLT vs VGLT: Holdings Overlap
TLTiShares 20+ Year Treasury Bond ETF
iShares · 46 holdings · $41.6B · as of 2026-05-31
VGLTVanguard Long-term Treasury Index Fund
Vanguard · 97 holdings · $10.4B · as of 2026-05-31
How similar are TLT and VGLT?
iShares 20+ Year Treasury Bond ETF (TLT, by iShares) holds 46 positions; Vanguard Long-term Treasury Index Fund (VGLT, by Vanguard) holds 97. They have 45 holdings in common, and by portfolio weight the two funds are 51.3% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 51.3%Sum of the smaller weight of each shared holding
- Shared Holdings
- 45TLT holds 46 · VGLT holds 97
- Weight in Shared Holdings
- TLT 98%·VGLT 58%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in TLT
1 of 46 positions (0.5% of the fund) are not held by VGLT.
- U.S. Treasury Bonds0.54%
Only in VGLT
52 of 97 positions (40.0% of the fund) are not held by TLT. Showing the top 30 by weight.
- U.S. Treasury Bonds1.54%
- U.S. Treasury Bonds1.41%
- U.S. Treasury Bonds1.40%
- U.S. Treasury Bonds1.40%
- U.S. Treasury Bonds1.40%
- U.S. Treasury Bonds1.37%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| TLT | -1.7% | -2.5% | -1.3% | -0.6% | -7.8% | -2.3% | 4.72% |
| VGLT | -1.5% | -2.3% | -0.6% | +0.5% | -6.7% | -1.7% | 4.76% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in TLT vs VGLT →
Shared Holdings(45)
The top 10 shared positions account for 42% of the overlap, led by U.S. Treasury Bonds, U.S. Treasury Bonds and U.S. Treasury Bonds.
| U.S. Treasury Bonds | 3.95% | 2.22% | 2.22% |
|---|---|---|---|
| U.S. Treasury Bonds | 2.90% | 2.21% | 2.21% |
| U.S. Treasury Bonds | 4.46% | 2.21% | 2.21% |
| U.S. Treasury Bonds | 4.40% | 2.17% | 2.17% |
| U.S. Treasury Bonds | 3.80% | 2.17% | 2.17% |
| U.S. Treasury Bonds | 2.54% | 2.17% | 2.17% |
| U.S. Treasury Bonds | 4.50% | 2.14% | 2.14% |
| U.S. Treasury Bonds | 3.46% | 2.13% | 2.13% |
| U.S. Treasury Bonds | 4.03% | 2.04% | 2.04% |
| U.S. Treasury Bonds | 3.94% | 2.04% | 2.04% |
| U.S. Treasury Bonds | 4.58% | 1.83% | 1.83% |
| U.S. Treasury Bonds | 3.62% | 1.64% | 1.64% |
| U.S. Treasury Bonds | 3.86% | 1.51% | 1.51% |
| U.S. Treasury Bonds | 2.97% | 1.50% | 1.50% |
| U.S. Treasury Bonds | 4.15% | 1.40% | 1.40% |
| U.S. Treasury Bonds | 2.73% | 1.36% | 1.36% |
| U.S. Treasury Bonds | 1.33% | 1.35% | 1.33% |
| U.S. Treasury Bonds | 4.04% | 1.25% | 1.25% |
| U.S. Treasury Bonds | 2.42% | 1.14% | 1.14% |
| U.S. Treasury Bonds | 2.35% | 1.13% | 1.13% |
| U.S. Treasury Bonds | 2.81% | 1.12% | 1.12% |
| U.S. Treasury Bonds | 1.09% | 1.25% | 1.09% |
| U.S. Treasury Bonds | 2.55% | 1.08% | 1.08% |
| U.S. Treasury Bonds | 2.73% | 1.06% | 1.06% |
| U.S. Treasury Bonds | 1.06% | 1.04% | 1.04% |
Frequently Asked Questions
How much do TLT and VGLT overlap?
TLT and VGLT overlap by 51.3% of portfolio weight. They share 45 holdings (TLT holds 46 positions and VGLT holds 97), based on each fund's latest SEC-reported holdings.
Is it redundant to own both TLT and VGLT?
The two portfolios are 51.3% identical by weight. Owning both is defensible: they share a meaningful core, but each fund adds exposure the other lacks.
What are the biggest shared holdings of TLT and VGLT?
The largest positions held by both funds are U.S. Treasury Bonds, U.S. Treasury Bonds, U.S. Treasury Bonds, U.S. Treasury Bonds and U.S. Treasury Bonds. Together the top 10 shared positions account for 42% of the total overlap.
What does TLT own that VGLT doesn't?
1 positions (0.5% of TLT) are unique to TLT, led by U.S. Treasury Bonds. In the other direction, 52 positions (40.0% of VGLT) are unique to VGLT.