Compare · 3 funds side by side · dividends reinvested

MFSB, MUB and IUSB

Story of the three · Growth5Y$10,000 five years agoDividends reinvested · all three on one scale$10,432MUB · best of the three

02 / 04

MFSB, MUB and IUSB, Ranked

Today

FundFeeYieldYTD1 year3 yrs · yr5 yrs · yrWorst dropVolatilityAssetsAvg rank

iShares National Muni Bond ETFBonds & Cash · Municipal0.05%3.26%+0.7%+1.1%+4.1%+0.8%−6.3%3.7%$55.1B1.6

MFS Active Exchange Traded Funds Trust - MFS Active Core Plus Bond ETFBonds & Cash · Core aggregate0.34%4.72%+0.2%+0.7%[…][…]−4.1%3.9%$862M2.0

iShares Core Universal USD Bond ETFBonds & Cash · Core aggregate0.06%4.33%+0.1%+0.5%+5.4%+0.3%−4.3%3.9%$50.5B2.1

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

End-of-day Nov 9, 2026 · returns include dividends · since: MFSB 2024 · MUB 2007 · IUSB 2014

Head to Head

Swap sides Versus in desk

Head to Head

iShares National Muni Bond ETF · $55.1B$10,432

MUB

MFSB

MFS Active Exchange Traded Funds Trust - MFS Active Core Plus Bond ETF · $862M[…]

$10,000 five years ago, dividends reinvested

MUBMeasureMFSB

+0.7%Year to dateJan 1 → Nov 9+0.2%

+1.1%1 yearTotal return+0.7%

+4.1%3 years · per year$10,000 became $11,293 · […][…]

+0.8%5 years · per year$10,000 became $10,432 · […][…]

0.05%Expense ratio$5 · $34 a year on $10k · lower is better0.34%

3.26%Trailing 12-mo yield$326 · $472 a year on $10k4.72%

−6.3%Worst dropSmaller is better−4.1%

3.7%VolatilityLower is calmer3.9%

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

4–2MUB wins

End-of-day Nov 9, 2026 · returns include dividends · 3Y and 5Y figures are per-year returns

More Ways to See the Pairs

MUB vs MFSB: Top 5 Holdings

Today

MUB

[…]in top 5

MFSB

in top 50.5%

MUBStockMFSB

not top 5TRGP0.5%

Held in common[…]

End-of-day Nov 9, 2026 · share of each fund

MUB vs MFSB Returns, Every Period

iSharesMUB

+1.1%

past year

MFSBMFS

+0.7%

past year

MUBMFSBFaded: behind in that period

2–0MUB wins

End-of-day Nov 9, 2026 · dividends in · faded = behind in that period

MUB vs MFSB

YTD

iSharesMUB

+0.7%

MFSBMFS

+0.2%

+0.7%Year to date+0.2%

−6.3%Worst drop · 1Y−4.1%

3.7%Volatility · 1Y3.9%

3.3%Yield4.7%

$55.1BAssets$862M

2–2level

End-of-day Nov 9, 2026 · smaller drop and lower volatility win

Cost, Income and Risk

Fees: MFSB, MUB, IUSB

Today

0.05%lowest, MUB

FundExpense ratioFee$10k

MUB0.05%$5

IUSB0.06%$6

MFSB0.34%$34

End-of-day Nov 9, 2026 · fee on $10,000 a year

Yields: MFSB, MUB, IUSB

4.72%highest, MFSB

FundTrailing yieldYield$10k

MFSB4.72%$472

IUSB4.33%$433

MUB3.26%$326

End-of-day Nov 9, 2026 · trailing 12-month yield

Income After Fees on $10,000

$438most kept, MFSB

MFSB$472 − $34 = $438

IUSB$433 − $6 = $427

MUB$326 − $5 = $321

KeptFee

End-of-day Nov 9, 2026 · yield in dollars minus the fee

Overlap: MFSB, MUB, IUSB

Today

[…]holdings […]

MFSBMUBIUSB

MFSB—[…][…]

MUB[…]—[…]

IUSB[…][…]—

End-of-day Nov 9, 2026 · share held in common · outlined: the pair in versus

Return vs Bumpiness: 3 ETFs

+1.1%MUB, at 3.7% 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 9, 2026 · up and left is better

Paid More vs Made More

YTD

MFSBMUB

+0.2%Year to date+0.7%

4.7%Yield3.3%

+0.7%Past year+1.1%

0.34%Fee0.05%

3–1MUB wins

End-of-day Nov 9, 2026

Popular Pairs Near These Three

SCHD vs VIG

YTD

SchwabSCHD

+33.2%

VIGVanguard

+14.8%

+33.2%Year to date+14.8%

3.0%Yield1.5%

$122BAssets$109B

2–0SCHD wins

End-of-day Nov 9, 2026

JEPQ vs JEPI

YTD

J.P. MorganJEPQ

+6.6%

JEPIJ.P. Morgan

+7.5%

+6.6%Year to date+7.5%

12.4%Yield7.9%

$40.7BAssets$45.2B

1–1level

End-of-day Nov 9, 2026

SPYM vs SPY

YTD

SPDRSPYM

+11.3%

SPYSPDR

+11.2%

+11.3%Year to date+11.2%

1.0%Yield1.0%

$179BAssets$778B

1–0SPYM wins

End-of-day Nov 9, 2026