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ETF comparison

MBB vs NEAR

Both US Aggregate Bond.

iShares MBS ETF · iShares Short Duration Bond Active ETF

Holdings overlap

Weighted by ISIN/CUSIP
0.0 %

0 positions appear in both funds. Buying equal dollars of MBB and NEAR would leave roughly 0.0% of each dollar exposed to the same underlying securities.

MBB unmatched 98.2% Shared 0.0% NEAR unmatched 97.8%

Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.

In MBB only
11,209 positions
Shared
0 positions
In NEAR only
1,824 positions

Side by side

MBB

iShares MBS ETF

iShares · US Aggregate Bond

89 composite / 100
Expense ratio
0.040%
Net assets
$35.89B
TTM yield
4.09%
Top-10 conc.
6.6%
NEAR

iShares Short Duration Bond Active ETF

iShares · US Aggregate Bond

73 composite / 100
Expense ratio
0.25%
Net assets
$5.22B
TTM yield
4.14%
Top-10 conc.
28.7%

Sub-score comparison

96
Cost
75
52
Tax efficiency
52
100
Liquidity
88
100
Concentration
73
—
Tracking quality
—
MBB sub-score NEAR

Tracking quality isn't part of the composite — see what we don't score for why.

Cost difference

MBB is 21 bps cheaper than NEAR. On a $100,000 position that's about $210/yr more in fees for NEAR.

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 MBB vs NEAR.

Top shared holdings

0 shared in total

No shared holdings between these funds.

Only in MBB

11,209 total
  • Government National Mortgage Association 1.05%
  • Freddie Mac 0.98%
  • UMBS, TBA 0.85%
  • UMBS, TBA 0.70%
  • Government National Mortgage Association 0.53%
  • Government National Mortgage Association 0.51%
  • Government National Mortgage Association 0.51%
  • Government National Mortgage Association 0.50%
  • Government National Mortgage Association 0.49%
  • Fannie Mae 0.49%

Only in NEAR

1,824 total
  • United States Treasury 12.04%
  • United States Treasury 3.76%
  • United States Treasury 3.32%
  • United States Treasury 2.83%
  • United States Treasury 1.83%
  • United States Treasury 1.42%
  • United States Treasury 1.30%
  • United States Treasury 1.08%
  • United States Treasury 0.70%
  • United States Treasury 0.47%

Related comparisons

More comparisons with MBB

More comparisons with NEAR

Percentages are holdings overlap with the named fund.

Open MBB or NEAR at a brokerage

Both funds trade commission-free at major US brokerages.

Open at Fidelity

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.