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Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

AGG vs TLT: how they differ

AGG and TLT are both bond index funds, and over the year AGG returned more, −0.7% against −6.4%.

iShares Core U.S. Aggregate Bond ETF and iShares 20+ Year Treasury Bond ETF.

AGG and TLT on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
AGG
iShares Core U.S. Aggregate Bond ETF
TLT
iShares 20+ Year Treasury Bond ETF
Where it sitsCore index fundCore index fund
IssueriSharesiShares
What it isUS aggregate bonds20+ year Treasuries
Total return, 1 year−0.7%−6.4%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−18.2 pts−23.9 pts
Expense ratio0.03%0.15%

AGG in plain words

AGG is a bond fund tracking the US aggregate bonds. Over the year to Sep 11, 2026 it returned −0.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.03% a year. It sat 3.7% below its high of Aug 4, 2020 on Sep 11, 2026.

TLT in plain words

TLT is a bond fund tracking the 20+ year Treasuries. Over the year to Sep 11, 2026 it returned −6.4% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year. It sat 42.9% below its high of Aug 4, 2020 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, AGG or TLT?
In the year to Sep 12, 2026, with distributions reinvested, AGG returned −0.7% and TLT returned −6.4%, so AGG returned more. One year is one year; the longer windows are in the table.
Which is cheaper, AGG or TLT?
AGG charges 0.03% a year and TLT charges 0.15%, so AGG is cheaper. Fees come from each fund's prospectus.

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Where these figures came from

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

AGG against TLT, ETFIQ, data as of Sep 12, 2026. Every figure is arithmetic on a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, AGG against TLT, data as of Sep 12, 2026. https://etfiq.com/compare/any/AGG-TLT Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources