PlainIndex
Menu

ETF comparison

BLV vs SPAB

Both US Aggregate Bond.

Vanguard Long-Term Bond Fund · State Street SPDR Portfolio Aggregate Bond ETF

Holdings overlap

Weighted by ISIN/CUSIP
17.0 %

1,963 positions appear in both funds. Buying equal dollars of BLV and SPAB would leave roughly 17.0% of each dollar exposed to the same underlying securities.

BLV only 81.6% Shared 17.0% SPAB only 82.1%
In BLV only
1,050 positions
Shared
1,963 positions
In SPAB only
6,365 positions

Side by side

BLV

Vanguard Long-Term Bond Fund

Vanguard · US Aggregate Bond

88 composite / 100
Expense ratio
0.030%
Net assets
$8.67B
TTM yield
4.86%
Top-10 conc.
11.3%
SPAB

State Street SPDR Portfolio Aggregate Bond ETF

State Street · US Aggregate Bond

89 composite / 100
Expense ratio
0.030%
Net assets
$9.63B
TTM yield
4.08%
Top-10 conc.
9.3%

Sub-score comparison

97
Cost
97
51
Tax efficiency
52
97
Liquidity
99
98
Concentration
100
—
Tracking quality
—
BLV sub-score SPAB

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

Cost difference

Expense ratios are effectively identical (0.030% vs 0.030%).

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 BLV vs SPAB.

Top shared holdings

1,963 shared in total
# Holding In BLV In SPAB Overlap
1 United States Treasury Note/Bond 1.10% 0.29% 0.29%
2 United States Treasury Note/Bond 0.81% 0.27% 0.27%
3 United States Treasury Note/Bond 0.98% 0.27% 0.27%
4 United States Treasury Note/Bond 1.18% 0.26% 0.26%
5 United States Treasury Note/Bond 1.18% 0.25% 0.25%
6 United States Treasury Note/Bond 0.59% 0.24% 0.24%
7 United States Treasury Note/Bond 0.70% 0.24% 0.24%
8 United States Treasury Note/Bond 1.23% 0.24% 0.24%
9 United States Treasury Note/Bond 0.56% 0.24% 0.24%
10 United States Treasury Note/Bond 1.14% 0.24% 0.24%
11 United States Treasury Note/Bond 1.21% 0.23% 0.23%
12 United States Treasury Note/Bond 0.52% 0.23% 0.23%

Only in BLV

1,050 total
  • United States Treasury Note/Bond 0.50%
  • United States Treasury Note/Bond 0.49%
  • United States Treasury Note/Bond 0.46%
  • United States Treasury Note/Bond 0.41%
  • United States Treasury Note/Bond 0.40%
  • United States Treasury Note/Bond 0.38%
  • United States Treasury Note/Bond 0.36%
  • United States Treasury Note/Bond 0.26%
  • United States Treasury Note/Bond 0.25%
  • United States Treasury Note/Bond 0.23%

Only in SPAB

6,365 total
  • State Street Global Advisors 1.15%
  • United States Treasury 0.85%
  • United States Treasury 0.45%
  • United States Treasury 0.44%
  • United States Treasury 0.43%
  • United States Treasury 0.42%
  • United States Treasury 0.39%
  • UMBS, TBA 0.38%
  • United States Treasury 0.37%
  • United States Treasury 0.37%

Open BLV or SPAB 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.