MBB vs VCIT: Holdings Overlap
iShares · 11144 holdings · $39.1B · as of 2026-05-31
VCITVanguard Intermediate-term Corporate Bond Index Fund
Vanguard · 2302 holdings · $67.6B · as of 2026-05-31
How similar are MBB and VCIT?
iShares MBS ETF (MBB, by iShares) holds 11144 positions; Vanguard Intermediate-term Corporate Bond Index Fund (VCIT, by Vanguard) holds 2302. 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 · VCIT holds 2302
- Weight in Shared Holdings
- MBB 0%·VCIT 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 VCIT. 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 VCIT
2302 of 2302 positions (98.8% of the fund) are not held by MBB. Showing the top 30 by weight.
- Amazon.com, Inc.0.30%
- Boeing Co. (The)0.28%
- Meta Platforms, Inc.0.27%
- Bank of America Corp.0.27%
- Pfizer Investment Enterprises Pte. Ltd.0.27%
- Oracle Corp.0.27%
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% |
| VCIT | -0.2% | -0.0% | +2.8% | +6.0% | +0.9% | +2.7% | 4.87% |
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 VCIT →
Shared Holdings(0)
These two funds have no holdings in common.
Frequently Asked Questions
How much do MBB and VCIT overlap?
MBB and VCIT overlap by 0.0% of portfolio weight. They share 0 holdings (MBB holds 11144 positions and VCIT holds 2302), based on each fund's latest SEC-reported holdings.
Is it redundant to own both MBB and VCIT?
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 VCIT 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, 2302 positions (98.8% of VCIT) are unique to VCIT.