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ETF comparison

AGG vs FBND

Both US Aggregate Bond.

iShares Core U.S. Aggregate Bond ETF · Fidelity Total Bond ETF

Holdings overlap

Weighted by ISIN/CUSIP
14.6 %

646 positions appear in both funds. Buying equal dollars of AGG and FBND would leave roughly 14.6% of each dollar exposed to the same underlying securities.

AGG unmatched 83.8% Shared 14.6% FBND unmatched 95.4%

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 AGG only
12,620 positions
Shared
646 positions
In FBND only
3,823 positions

Side by side

AGG

iShares Core U.S. Aggregate Bond ETF

iShares · US Aggregate Bond

89 composite / 100
Expense ratio
0.030%
Net assets
$135.65B
TTM yield
4.13%
Top-10 conc.
4.0%
FBND

Fidelity Total Bond ETF

Fidelity · US Aggregate Bond

74 composite / 100
Expense ratio
0.36%
Net assets
$27.90B
TTM yield
4.80%
Top-10 conc.
19.8%

Sub-score comparison

97
Cost
64
52
Tax efficiency
51
100
Liquidity
100
100
Concentration
86
—
Tracking quality
—
AGG sub-score FBND

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

Cost difference

AGG is 33 bps cheaper than FBND. On a $100,000 position that's about $330/yr more in fees for FBND.

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 AGG vs FBND.

Top shared holdings

646 shared in total
# Holding In AGG In FBND Overlap
1 United States Treasury 0.42% 0.87% 0.42%
2 United States Treasury 0.41% 1.02% 0.41%
3 United States Treasury 0.40% 1.81% 0.40%
4 United States Treasury 0.40% 0.48% 0.40%
5 United States Treasury 0.39% 2.17% 0.39%
6 United States Treasury 0.39% 0.93% 0.39%
7 United States Treasury 0.38% 0.47% 0.38%
8 United States Treasury 0.37% 2.21% 0.37%
9 United States Treasury 0.35% 0.35% 0.35%
10 United States Treasury 0.33% 0.54% 0.33%
11 United States Treasury 0.31% 0.59% 0.31%
12 United States Treasury 0.29% 0.32% 0.29%

Only in AGG

12,620 total
  • United States Treasury 0.35%
  • United States Treasury 0.33%
  • United States Treasury 0.32%
  • United States Treasury 0.31%
  • United States Treasury 0.31%
  • United States Treasury 0.30%
  • United States Treasury 0.30%
  • United States Treasury 0.29%
  • United States Treasury 0.29%
  • United States Treasury 0.29%

Only in FBND

3,823 total
  • Fidelity Revere Street Trust 4.62%
  • FNMA/FHLG TBA ISSUER 0.83%
  • GNMA II GTD PASS THRU CTF MULTIPLE ISSUER 0.76%
  • GNMA II GTD PASS THRU CTF MULTIPLE ISSUER 0.32%
  • WELLS FARGO and CO 0.29%
  • PETROLEOS MEXICANOS 0.28%
  • GNMA II GTD PASS THRU CTF MULTIPLE ISSUER 0.27%
  • MAGNETITE XXVI LTD / MAGNETITE XXVI LLC 0.22%
  • FED HOME LOAN MTG CORP - GOLD 0.22%
  • PETROLEOS MEXICANOS 0.20%

Percentages are holdings overlap with the named fund.

Open AGG or FBND 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.