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Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

IGIB vs MDY: how they differ

IGIB and MDY hold 0% of their weight in the same names, and MDY returned more over the year.

iShares 5-10 Year Investment Grade Corporate Bond ETF and SPDR S&P MidCap 400 ETF Trust.

What they hold in common

By the books each fund has filed, IGIB and MDY hold 0% of their money in the same securities at the same weight.

Largest positions each one holds and the other does not
Only in IGIBOnly in MDY
BLK CSH FND TREASURY SL AGENCY 0.60%Twilio Inc. Class A 1.00%
ANHEUSER-BUSCH COMPANIES LLC 0.20%Illumina Inc. 0.86%
SPACE EXPLORATION TECHNOLOGIES COR 144A 0.19%TechnipFMC plc 0.86%
PFIZER INVESTMENT ENTERPRISES PTE 0.18%Everpure Inc. Class A 0.84%
QTS FAYETTEVILLE I DC1-2 LLC 144A 0.15%Okta Inc. Class A 0.81%
JPMORGAN CHASE & CO MTN 0.13%U.S. Dollar 0.80%
MORGAN STANLEY (FXD-FRN) MTN 0.12%ATI Inc 0.77%
WELLS FARGO & COMPANY (FXD-FRN) MTN 0.12%nVent Electric plc 0.71%

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Sep 10, 2026.

IGIB and MDY on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
IGIB
iShares 5-10 Year Investment Grade Corporate Bond ETF
MDY
SPDR S&P MidCap 400 ETF Trust
Where it sitsCore index fundCore index fund
IssueriSharesState Street
What it is5-10 Year Investment Grade Corporate BondS&P MidCap 400
Total return, 1 year−1.0%+13.0%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−18.5 pts−4.5 pts
Expense ratio0.04%0.23%
Holdings2951401

IGIB in plain words

IGIB is a bond fund tracking the 5-10 Year Investment Grade Corporate Bond. Over the year to Sep 11, 2026 it returned −1.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.04% a year. It sat 3.3% below its high of Feb 27, 2026 on Sep 11, 2026.

MDY in plain words

MDY is an index equity fund tracking the S&P MidCap 400. Over the year to Sep 11, 2026 it returned +13.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.23% a year. By its holdings filed for Sep 10, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 401 positions, with the top ten at 7.9%. It sat 5.3% below its high of Aug 14, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, IGIB or MDY?
In the year to Sep 13, 2026, with distributions reinvested, IGIB returned −1.0% and MDY returned +13.0%, so MDY returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IGIB or MDY?
IGIB charges 0.04% a year and MDY charges 0.23%, so IGIB 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.

IGIB against MDY, ETFIQ, data as of Sep 13, 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, IGIB against MDY, data as of Sep 13, 2026. https://etfiq.com/compare/any/igib-vs-mdy Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources