MBB vs VGIT: Holdings Overlap
iShares · 11144 holdings · $39.1B · as of 2026-05-31
VGITVanguard Intermediate-term Treasury Index Fund
Vanguard · 103 holdings · $42.5B · as of 2026-05-31
How similar are MBB and VGIT?
iShares MBS ETF (MBB, by iShares) holds 11144 positions; Vanguard Intermediate-term Treasury Index Fund (VGIT, by Vanguard) holds 103. They have 0 holdings in common, and by portfolio weight the two funds are 0.0% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 0.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 0MBB holds 11144 · VGIT holds 103
- Weight in Shared Holdings
- MBB 0%·VGIT 0%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 MBB
11144 of 11144 positions (98.1% of the fund) are not held by VGIT. Showing the top 30 by weight.
- Freddie Mac Pool1.05%
- Ginnie Mae0.95%
- Uniform Mortgage-Backed Security, TBA0.83%
- Ginnie Mae0.67%
- Uniform Mortgage-Backed Security, TBA0.64%
- Ginnie Mae II Pool0.55%
Only in VGIT
103 of 103 positions (98.7% of the fund) are not held by MBB. Showing the top 30 by weight.
- U.S. Treasury Notes1.94%
- U.S. Treasury Notes1.92%
- U.S. Treasury Notes1.90%
- U.S. Treasury Notes1.89%
- U.S. Treasury Notes1.89%
- U.S. Treasury Notes1.87%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| MBB | -0.2% | +0.4% | +3.9% | +4.7% | +0.3% | +1.2% | 4.33% |
| VGIT | +0.0% | -0.3% | +1.7% | +3.8% | -0.1% | +1.2% | 3.89% |
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 MBB vs VGIT →
Shared Holdings(0)
These two funds have no holdings in common.
Frequently Asked Questions
How much do MBB and VGIT overlap?
MBB and VGIT overlap by 0.0% of portfolio weight. They share 0 holdings (MBB holds 11144 positions and VGIT holds 103), based on each fund's latest SEC-reported holdings.
Is it redundant to own both MBB and VGIT?
The two portfolios are 0.0% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What does MBB own that VGIT doesn't?
11144 positions (98.1% of MBB) are unique to MBB, led by Freddie Mac Pool, Ginnie Mae and Uniform Mortgage-Backed Security, TBA. In the other direction, 103 positions (98.7% of VGIT) are unique to VGIT.