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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 Index ETF

Holdings overlap

Weighted by ISIN/CUSIP
7.1 %

2,881 positions appear in both funds. Buying equal dollars of AGG and SPLB would leave roughly 7.1% of each dollar exposed to the same underlying securities.

AGG unmatched 91.3% Shared 7.1% SPLB unmatched 91.7%

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
10,501 positions
Shared
2,881 positions
In SPLB only
58 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
$139.94B
TTM yield
3.80%
Top-10 conc.
3.9%
SPLB

State Street SPDR Portfolio Long Term Corporate Bond Index ETF

State Street · US Corporate Bond

78 composite / 100
Expense ratio
0.040%
Net assets
$1.19B
TTM yield
5.30%
Top-10 conc.
2.9%

Sub-score comparison

97
Cost
96
53
Tax efficiency
50
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

2,881 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 WELLS FARGO & COMPANY 0.02% 0.23% 0.02%
6 GOLDMAN SACHS GROUP INC 0.02% 0.13% 0.02%
7 BOEING CO 0.02% 0.25% 0.02%
8 CVS HEALTH CORP 0.02% 0.16% 0.02%
9 META PLATFORMS INC 0.01% 0.05% 0.01%
10 AT&T INC 0.01% 0.19% 0.01%
11 AMAZON.COM INC 0.01% 0.15% 0.01%
12 ABBVIE INC 0.01% 0.22% 0.01%

Only in AGG

10,501 total
  • United States Treasury 0.41%
  • United States Treasury 0.40%
  • 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 0.38%
  • United States Treasury 0.38%
  • United States Treasury 0.38%

Only in SPLB

58 total
  • HONEYWELL AEROSPACE INC 0.15%
  • SHELL FINANCE US INC 0.10%
  • BLACKROCK FUNDING INC 0.06%
  • HONEYWELL AEROSPACE INC 0.06%
  • HONEYWELL AEROSPACE INC 0.06%
  • CHARTER COMM OPT LLC/CAP 0.06%
  • BROADCOM INC 0.06%
  • BLACKROCK FUNDING INC 0.06%
  • SHELL FINANCE US INC 0.06%
  • CHARTER COMM OPT LLC/CAP 0.05%

Related comparisons

More comparisons with AGG

More comparisons with SPLB

Percentages are holdings overlap with the named fund.

Open AGG or SPLB 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.