Compare IDEF and SPY | ETF Tracker

IDEF and SPY, Ranked

Today

FundFeeYieldYTD1 year3 yrs · yr5 yrs · yrWorst dropVolatilityAssetsAvg rank

State Street SPDR S&P 500 ETFLow-Cost Core · S&P 5000.09%0.99%+13.3%+13.4%+24.1%+12.6%−8.9%12.9%$798B1.0

iShares Defense Industrials ActThematic · Defense & space0.55%0.36%−3.5%−7.9%[…][…]−19.2%23.4%$3.7B2.0

Rank among the two1st → 2ndFee, drop and volatility: lower ranks higherAvg rank: mean of the 8 ranks · 1 is best

End-of-day Nov 4, 2026 · returns include dividends · since: IDEF 2025 · SPY 1993

Head to Head

Swap sides Versus in desk

Head to Head

5Y

iShares Defense Industrials Act · $3.7B[…]

IDEF

SPY

State Street SPDR S&P 500 ETF · $798B$18,060

$10,000 five years ago, dividends reinvested · they hold 7.5% in common

IDEFMeasureSPY

−3.5%Year to dateJan 1 → Nov 4+13.3%

−7.9%1 yearTotal return+13.4%

[…]3 years · per year$10,000 became […] · $19,132+24.1%

[…]5 years · per year$10,000 became […] · $18,060+12.6%

0.55%Expense ratio$55 · $9 a year on $10k · lower is better0.09%

0.36%Trailing 12-mo yield$36 · $99 a year on $10k0.99%

−19.2%Worst dropSmaller is better−8.9%

23.4%VolatilityLower is calmer12.9%

IDEFSPY Winner of the row, in its colourEach row: the bigger of the two fills its side

0–6SPY wins

End-of-day Nov 4, 2026 · returns include dividends · 3Y and 5Y figures are per-year returns

More Ways to See the Pairs

IDEF vs SPY: Top 5 Holdings

Today

IDEF

24.9%in top 5

SPY

in top 527.3%

IDEFStockSPY

not top 5NVDA7.7%

not top 5AAPL7.4%

7.4%RTXnot top 5

not top 5MSFT5.9%

5.4%LMTnot top 5

4.4%GDnot top 5

3.9%NOCnot top 5

not top 5AMZN3.8%

3.8%HO.PAnot top 5

not top 5GOOGL2.5%

Held in common7.5%

End-of-day Nov 4, 2026 · share of each fund

IDEF vs SPY Returns, Every Period

1Y

iSharesIDEF

−7.9%

past year

SPYSPDR

+13.4%

past year

IDEFSPYFaded: behind in that period

0–2SPY wins

End-of-day Nov 4, 2026 · dividends in · faded = behind in that period

Thematic vs Core: IDEF vs SPY

YTD

iSharesIDEF

−3.5%

SPYSPDR

+13.3%

−3.5%Year to date+13.3%

−19.2%Worst drop · 1Y−8.9%

23.4%Volatility · 1Y12.9%

0.4%Yield1.0%

$3.7BAssets$798B

4–0SPY wins

End-of-day Nov 4, 2026 · smaller drop and lower volatility win

Cost, Income and Risk

Fees: IDEF, SPY

Today

0.09%lowest, SPY

FundExpense ratioFee$10k

SPY0.09%$9

IDEF0.55%$55

End-of-day Nov 4, 2026 · fee on $10,000 a year

Yields: IDEF, SPY

1Y

0.99%highest, SPY

FundTrailing yieldYield$10k

SPY0.99%$99

IDEF0.36%$36

End-of-day Nov 4, 2026 · trailing 12-month yield

Income After Fees on $10,000

1Y

$90most kept, SPY

SPY$99 − $9 = $90

IDEF$36 − $55 = −$19

KeptFee

End-of-day Nov 4, 2026 · yield in dollars minus the fee

Overlap: IDEF, SPY

Today

7.5%most shared, IDEF and SPY

IDEFSPY

IDEF—7.5%

SPY7.5%—

End-of-day Nov 4, 2026 · share held in common · outlined: the pair in versus

Return vs Bumpiness: 2 ETFs

1Y

+13.4%SPY, at 12.9% volatility

SPYWorst drop−8.9%12.9% vol

IDEFWorst drop−19.2%23.4% vol

End-of-day Nov 4, 2026 · up and left is better

Paid More vs Made More

YTD

SPYIDEF

+13.3%Year to date−3.5%

1.0%Yield0.4%

+13.4%Past year−7.9%

0.09%Fee0.55%

4–0SPY wins

End-of-day Nov 4, 2026

Popular Pairs Near These Two

SPYM vs SPY

YTD

SPDRSPYM

+13.4%

SPYSPDR

+13.3%

+13.4%Year to date+13.3%

1.0%Yield1.0%

$185BAssets$798B

1–0SPYM wins

End-of-day Nov 4, 2026

SCHD vs VIG

YTD

SchwabSCHD

+35.3%

VIGVanguard

+16.4%

+35.3%Year to date+16.4%

2.9%Yield1.4%

$121BAssets$109B

2–0SCHD wins

End-of-day Nov 4, 2026

JEPQ vs JEPI

YTD

J.P. MorganJEPQ

+8.5%

JEPIJ.P. Morgan

+8.8%

+8.5%Year to date+8.8%

12.2%Yield7.8%

$41.8BAssets$46.0B

1–1level

End-of-day Nov 4, 2026