ETF and Mutual Fund Analysis

Holdings as of August 12, 2026

ETF and Mutual Fund Analysis

Overlap, Comparison, and Diversification for Your Portfolio

Home > Compare > SPAB vs SPTL Holdings as of August 12, 2026

SPAB vs SPTL: Portfolio Overlap

State Street(R) SPDR(R) Portfolio Aggregate Bond ETF vs State Street(R) SPDR(R) Portfolio Long Term Treasury ETF

9.3%
Weighted portfolio overlap
Low Overlap

Low Overlap. The two portfolios have highly distinct allocations: little of the weight sits in the same stocks.

SPAB
8548 equity holdings
as of August 12, 2026
SPTL
100 equity holdings
as of August 12, 2026
76 stocks held in common
Overlap View Venn Diagram
9.3% OVERLAP SPAB SPTL
Overlapping Holdings
10 Top 10 of 76 shared, by overlap contribution
# Stock SPAB SPTL Overlap%
1
US TREASURY N/B 05/56 5
 0.33% 2.31% 0.33%
2
US TREASURY N/B 11/45 4.625
 0.28% 1.36% 0.28%
3
US TREASURY N/B 08/55 4.75
 0.27% 2.22% 0.27%
4
US TREASURY N/B 05/46 5
 0.25% 1.42% 0.25%
5
US TREASURY N/B 05/55 4.75
 0.25% 2.17% 0.25%
6
US TREASURY N/B 02/55 4.625
 0.24% 2.12% 0.24%
7
US TREASURY N/B 02/56 4.75
 0.24% 2.21% 0.24%
8
US TREASURY N/B 02/45 4.75
 0.22% 1.37% 0.22%
9
US TREASURY N/B 08/45 4.875
 0.21% 1.41% 0.21%
10
US TREASURY N/B 11/54 4.5
 0.21% 2.09% 0.21%
Most Divergent Holdings Stocks held by one fund but absent from the other
Only in SPAB — State Street(R) SPDR(R) Portfolio Aggregate Bond ETF
StockWeight
US TREASURY N/B 12/28 3.50.72%
US TREASURY N/B 12/30 3.6250.54%
US TREASURY N/B 11/27 3.3750.44%
FNMA TBA 30 YR 5.5 SINGLE FAMILY MORTGAGE0.43%
US TREASURY N/B 11/28 4.3750.40%
Only in SPTL — State Street(R) SPDR(R) Portfolio Long Term Treasury ETF
StockWeight
US TREASURY N/B 11/51 1.8751.21%
US TREASURY N/B 05/50 1.250.90%
US TREASURY N/B 11/49 2.3750.81%
US TREASURY N/B 08/46 2.250.68%
US TREASURY N/B 02/44 3.6250.64%

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Frequently Asked Questions (FAQs)
What is the portfolio overlap between SPAB and SPTL?

SPAB (State Street(R) SPDR(R) Portfolio Aggregate Bond ETF) and SPTL (State Street(R) SPDR(R) Portfolio Long Term Treasury ETF) share 9.3% portfolio overlap as of their August 12, 2026 filings, across 76 common stocks. Overlap is the sum of the smaller weight of each shared stock, so it reads as the share of a dollar that lands on the same companies in both funds.

Do SPAB and SPTL invest in the same stocks?

Mostly not. Only a small portion of their portfolios overlaps — these funds hold largely different stocks and genuinely diversify each other.

What are the top stocks held by both SPAB and SPTL?

The most prominent shared holdings (by combined weight) are: US TREASURY N/B 05/56 5, US TREASURY N/B 11/45 4.625, US TREASURY N/B 08/55 4.75. See the full common-holdings table on this page for weights in each fund.

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