Which returned more over the last year, BIL or SPY?

In the year to Oct 28, 2026, with distributions reinvested, BIL returned +3.7% and SPY +13.6%.

Which is cheaper, BIL or SPY?

SPY is cheaper, by 0.05 percentage points a year. That is about $5 on $10,000 held for a year. Fees come from each fund's prospectus.

Data as of Oct 28, 2026.

Across categories

BIL vs SPY: Differences, Returns & Fees

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Over the year to Oct 28, 2026, BIL returned +3.7% to SPY's +13.6%; 0% of their weight is in the same names.

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Net assets on Oct 27, 2026: $48.7bn for SPDR Bloomberg 1-3 Month T-Bill ETF and $814.8bn for SPDR S&P 500 ETF Trust.

BIL on its own →SPY on its own →

At a glance

+3.7%

BIL total return, 1 year

+13.6%

SPY total return, 1 year

0.14%

BIL expense ratio

0.09%

SPY expense ratio

Pair scorecard

SPY costs 0.05 points a year less; their one-year returns differ by 9.9 points; SPY is 16.7 times larger.

BIL vs SPY: Differences, Returns & Fees
Measure	BIL	SPY
Return
Measure	BIL	SPY
Total return, 1 year	+3.7%	+13.6%
Benchmark
Measure	BIL	SPY
What it tracks	Bloomberg 1-3 Month U.S. Treasury Bill Index	S&P 500 Index
Cost and size
Measure	BIL	SPY
Expense ratio	0.14%	0.09%
Net assets, as of Oct 27, 2026	$48.7bn	$814.8bn
Holdings
Measure	BIL	SPY
Holdings in common	0%
In the S&P 500, by weight		100%
Top ten holdings, share of the fund		38.1%

Holdings in common uses holdings dated Oct 27, 2026. Method

What they share

By the books each fund has filed, BIL and SPY hold 0% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.

50%

0 half 100%

half

0% in common

Positions both hold · largest shared weight first BIL SPY

Only in one fund ↓

Only in BIL

TREASURY BILL 12/26 0.00000 7.94%

TREASURY BILL 12/26 0.00000 6.66%

TREASURY BILL 12/26 0.00000 6.46%

TREASURY BILL 12/26 0.00000 6.40%

TREASURY BILL 12/26 0.00000 6.39%

TREASURY BILL 11/26 0.00000 6.26%

TREASURY BILL 12/26 0.00000 6.21%

TREASURY BILL 11/26 0.00000 4.85%

Only in SPY

NVIDIA CORP 7.92%

APPLE INC 7.61%

MICROSOFT CORP 5.93%

AMAZON.COM INC 3.73%

ALPHABET INC CL A 2.83%

BROADCOM INC 2.45%

ALPHABET INC CL C 2.26%

META PLATFORMS INC CLASS A 2.06%

Check overlap with more funds →

Side by side

BIL SPDR Bloomberg 1-3 Month T-Bill ETF SPY SPDR S&P 500 ETF Trust

Where it sits Bond ETF Stock ETF

Issuer State Street State Street

What it is Tracks an index of 1-3 month T-bills Tracks the S&P 500

Total return, 1 year +3.7% +13.6%

Its benchmark over the same days not measured +13.7% (VOO)

Gap to its benchmark not measured −0.1 pts vs VOO

Expense ratio 0.14% 0.09%

Holdings 26 504

Net assets, as of Oct 27, 2026 $48.7bn $814.8bn

BIL and SPY on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

Alert

About each fund

BIL

BIL tracks an index of 1-3 month T-bills. Over the year to Oct 28, 2026 it returned +3.7% with distributions reinvested. The prospectus expense ratio is 0.14% a year.

SPY

SPY tracks the S&P 500. Over the year to Oct 28, 2026 it returned +13.6% with distributions reinvested, against +13.7% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.09% a year. By its holdings published by its issuer for Oct 27, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 504 positions, with the top ten at 38.1%.

Questions people ask

Which returned more over the last year, BIL or SPY?: In the year to Oct 28, 2026, with distributions reinvested, BIL returned +3.7% and SPY +13.6%.
Which is cheaper, BIL or SPY?: SPY is cheaper, by 0.05 percentage points a year. That is about $5 on $10,000 held for a year. Fees come from each fund's prospectus.

Other comparisons

BIL vs VOO BIL vs IVV BIL vs VTI BIL vs SPYM SHV vs SPY PULS vs SPY SPY vs USFR MINT vs SPY

Where to next

BIL on its own →SPY on its own →Hold both: look the portfolio through →Rankings →BIL dividend history →BIL holdings →SPY dividend history →SPY holdings →Standards and sources →

Sources and dates

BIL filings on SEC EDGAR ↗

BIL prospectus with the expense ratio (SEC) ↗

State Street website ↗

SPY filings on SEC EDGAR ↗

Links are sources, not endorsements. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Cite this pageCitation, APA and Markdown

ETFIQ, BIL against SPY, data as of Oct 28, 2026. https://etfiq.com/compare/any/bil-vs-spy

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Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.