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ETF comparison

AGG vs SPLB

US Aggregate Bond vs US Corporate Bond.

iShares Core U.S. Aggregate Bond ETF · State Street SPDR Portfolio Long Term Corporate Bond ETF

Holdings overlap

Weighted by ISIN/CUSIP
7.4 %

2,888 positions appear in both funds. Buying equal dollars of AGG and SPLB would leave roughly 7.4% of each dollar exposed to the same underlying securities.

AGG unmatched 91.1% Shared 7.4% SPLB unmatched 91.4%

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
10,378 positions
Shared
2,888 positions
In SPLB only
51 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%
SPLB

State Street SPDR Portfolio Long Term Corporate Bond ETF

State Street · US Corporate Bond

78 composite / 100
Expense ratio
0.040%
Net assets
$1.18B
TTM yield
5.77%
Top-10 conc.
2.9%

Sub-score comparison

97
Cost
96
52
Tax efficiency
49
100
Liquidity
60
100
Concentration
100
—
Tracking quality
—
AGG sub-score SPLB

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

Cost difference

AGG is 1 bps cheaper than SPLB. On a $100,000 position that's about $10/yr more in fees for SPLB.

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 SPLB.

Top shared holdings

2,888 shared in total
# Holding In AGG In SPLB Overlap
1 ANHEUSER-BUSCH CO/INBEV 0.03% 0.35% 0.03%
2 CVS HEALTH CORP 0.02% 0.34% 0.02%
3 GOLDMAN SACHS GROUP INC 0.02% 0.18% 0.02%
4 PFIZER INVESTMENT ENTER 0.02% 0.26% 0.02%
5 GOLDMAN SACHS GROUP INC 0.02% 0.13% 0.02%
6 BOEING CO 0.02% 0.25% 0.02%
7 WELLS FARGO & COMPANY 0.02% 0.23% 0.02%
8 META PLATFORMS INC 0.02% 0.05% 0.02%
9 AT&T INC 0.02% 0.18% 0.02%
10 AT&T INC 0.02% 0.19% 0.02%
11 CVS HEALTH CORP 0.02% 0.16% 0.02%
12 ABBVIE INC 0.01% 0.22% 0.01%

Only in AGG

10,378 total
  • United States Treasury 0.42%
  • United States Treasury 0.41%
  • United States Treasury 0.41%
  • United States Treasury 0.40%
  • United States Treasury 0.40%
  • United States Treasury 0.39%
  • United States Treasury 0.39%
  • United States Treasury 0.39%
  • United States Treasury 0.39%
  • United States Treasury 0.38%

Only in SPLB

51 total
  • SPACE EXPLORATION TECH 0.24%
  • NVIDIA CORP 0.16%
  • SPACE EXPLORATION TECH 0.16%
  • VODAFONE GROUP PLC 0.14%
  • DELL INT LLC / EMC CORP 0.11%
  • MIZUHO FINANCIAL GROUP 0.10%
  • NVIDIA CORP 0.08%
  • FAIRFAX FINL HLDGS LTD 0.08%
  • BLACKROCK FUNDING INC 0.06%
  • PACIFIC GAS & ELECTRIC 0.06%

Percentages are holdings overlap with the named fund.

Open AGG or SPLB 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.