Compare · 3 funds side by side · dividends reinvested

MFSB, IUSB and MUB

Story of the three · Growth5Y$10,000 five years agoDividends reinvested · all three on one scale$10,414MUB · best of the three

02 / 04

MFSB, IUSB and MUB, Ranked

Today

FundFeeYieldYTD1 year3 yrs · yr5 yrs · yrWorst dropVolatilityAssetsAvg rank

iShares National Muni Bond ETFBonds & Cash · Municipal0.05%3.27%+0.5%+0.9%+4.5%+0.8%−6.3%3.7%$54.7B1.8

MFS Active Exchange Traded Funds Trust - MFS Active Core Plus Bond ETFBonds & Cash · Core aggregate0.34%4.71%+0.4%+1.1%[…][…]−4.1%3.9%$810M1.8

iShares Core Universal USD Bond ETFBonds & Cash · Core aggregate0.06%4.33%+0.2%+0.6%+6.0%+0.3%−4.3%3.9%$50.3B2.1

Rank among the three1st → 3rdFee, drop and volatility: lower ranks higherAvg rank: mean of the 8 ranks · 1 is best

End-of-day Nov 5, 2026 · returns include dividends · since: MFSB 2024 · IUSB 2014 · MUB 2007

Head to Head

Swap sides Versus in desk

Head to Head

MFS Active Exchange Traded Funds Trust - MFS Active Core Plus Bond ETF · $810M[…]

MFSB

IUSB

iShares Core Universal USD Bond ETF · $50.3B$10,142

$10,000 five years ago, dividends reinvested

MFSBMeasureIUSB

+0.4%Year to dateJan 1 → Nov 5+0.2%

+1.1%1 yearTotal return+0.6%

[…]3 years · per year$10,000 became […] · $11,909+6.0%

[…]5 years · per year$10,000 became […] · $10,142+0.3%

0.34%Expense ratio$34 · $6 a year on $10k · lower is better0.06%

4.71%Trailing 12-mo yield$471 · $433 a year on $10k4.33%

−4.1%Worst dropSmaller is better−4.3%

3.9%VolatilityLower is calmer3.9%

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

4–1MFSB wins

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

More Ways to See the Pairs

MFSB vs IUSB: Top 5 Holdings

Today

MFSB

0.5%in top 5

IUSB

in top 5[…]

MFSBStockIUSB

0.5%TRGPnot top 5

Held in common[…]

End-of-day Nov 5, 2026 · share of each fund

MFSB vs IUSB Returns, Every Period

MFSMFSB

+1.1%

past year

IUSBiShares

+0.6%

past year

MFSBIUSBFaded: behind in that period

2–0MFSB wins

End-of-day Nov 5, 2026 · dividends in · faded = behind in that period

MFSB vs IUSB

YTD

MFSMFSB

+0.4%

IUSBiShares

+0.2%

+0.4%Year to date+0.2%

−4.1%Worst drop · 1Y−4.3%

3.9%Volatility · 1Y3.9%

4.7%Yield4.3%

$810MAssets$50.3B

3–0MFSB wins

End-of-day Nov 5, 2026 · smaller drop and lower volatility win

Cost, Income and Risk

Fees: MFSB, IUSB, MUB

Today

0.05%lowest, MUB

FundExpense ratioFee$10k

MUB0.05%$5

IUSB0.06%$6

MFSB0.34%$34

End-of-day Nov 5, 2026 · fee on $10,000 a year

Yields: MFSB, IUSB, MUB

4.71%highest, MFSB

FundTrailing yieldYield$10k

MFSB4.71%$471

IUSB4.33%$433

MUB3.27%$327

End-of-day Nov 5, 2026 · trailing 12-month yield

Income After Fees on $10,000

$437most kept, MFSB

MFSB$471 − $34 = $437

IUSB$433 − $6 = $427

MUB$327 − $5 = $322

KeptFee

End-of-day Nov 5, 2026 · yield in dollars minus the fee

Overlap: MFSB, IUSB, MUB

Today

[…]holdings […]

MFSBIUSBMUB

MFSB—[…][…]

IUSB[…]—[…]

MUB[…][…]—

End-of-day Nov 5, 2026 · share held in common · outlined: the pair in versus

Return vs Bumpiness: 3 ETFs

+1.1%MFSB, at 3.9% volatility

MUBWorst drop−6.3%3.7% vol

IUSBWorst drop−4.3%3.9% vol

MFSBWorst drop−4.1%3.9% vol

End-of-day Nov 5, 2026 · up and left is better

Paid More vs Made More

YTD

MFSBMUB

+0.4%Year to date+0.5%

4.7%Yield3.3%

+1.1%Past year+0.9%

0.34%Fee0.05%

2–2level

End-of-day Nov 5, 2026

Popular Pairs Near These Three

SCHD vs VIG

YTD

SchwabSCHD

+32.3%

VIGVanguard

+12.5%

+32.3%Year to date+12.5%

3.0%Yield1.5%

$123BAssets$109B

2–0SCHD wins

End-of-day Nov 5, 2026

JEPQ vs JEPI

YTD

J.P. MorganJEPQ

+8.5%

JEPIJ.P. Morgan

+5.2%

+8.5%Year to date+5.2%

12.2%Yield8.1%

$42.1BAssets$46.1B

2–0JEPQ wins

End-of-day Nov 5, 2026

SPYM vs SPY

YTD

SPDRSPYM

+8.4%

SPYSPDR

+8.3%

+8.4%Year to date+8.3%

1.1%Yield1.0%

$182BAssets$805B

2–0SPYM wins

End-of-day Nov 5, 2026