MDY vs MDYG: Grades, Fees and Holdings Compared

State Street SPDR S&P MIDCAP 400 ETF Trust

MDYBNYSE Arca

State Street SPDR S&P 400 Mid Cap Growth ETF

MDYGBNYSE Arca

Overlap

63.9%by weight

Expense ratio

MDYG −0.08pt a year

MDY0.23%MDYG0.15%

Avg volume · 30D

MDY 6.8×the volume

MDY647KMDYG94.8K

10Y return · a year

MDYG +0.3pt

MDY+10.6%MDYG+10.9%

MDY vs MDYG Performance

Nov 9, 2021 – Nov 9, 2026

+36.4%MDY+30.9%MDYG

Expense ratio: MDY 0.23%; MDYG 0.15%, better
Fund size: MDY $25.5B; MDYG $2.75B
1Y total return: MDY +15.7%, better; MDYG +15.1%
Yield (12M): MDY 1.03%, better; MDYG 0.67%
Holdings: MDY 401; MDYG 249
Avg volume (30D): MDY 647K sh, better; MDYG 94.8K sh
NAV per share: MDY $658.01; MDYG $101.02
52W range

ETF.net Grade

Pillar letters and Scores for MDY, MDYG, with each pillar’s weight
Pillar	MDY	MDYG
Cost30% weight	F24	C51Higher
Mission25% weight	A100Higher	A96
Risk15% weight	B57Higher	D26
Tradability15% weight	A93Higher	B60
Holdings10% weight	A79Higher	C41
Durability5% weight	A76Higher	B61

Rank among S&P MidCap 400 funds

How we build Categories ›

Same Category. MDY and MDYG are both graded against the same 11 S&P MidCap 400 funds, so their Grades compare head to head.

S&P MidCap 400⁠

Category · 11 funds

See all 11 ›

MDY ranks 4th and MDYG 7th of 11 funds in the S&P MidCap 400 Category.

Rank 1ASPMDState Street SPDR Portfolio S&P 400 Mid Cap ETFScore 86
Rank 2AIJHiShares Core S&P Mid-Cap ETFScore 84
Rank 3AIVOOVanguard S&P Mid-Cap 400 ETFScore 72
Rank 4BMDYState Street SPDR S&P MIDCAP 400 ETF TrustScore 66
Rank 4BXJHiShares ESG Select Screened S&P Mid-Cap ETFScore 66
Rank 6BMDYVState Street SPDR S&P 400 Mid Cap Value ETFScore 63
Rank 7BMDYGState Street SPDR S&P 400 Mid Cap Growth ETFScore 59
Rank 8BIJJiShares S&P Mid-Cap 400 Value ETFScore 58

Our read on each fund

ETF.net Research

MDYBState Street SPDR S&P MIDCAP 400 ETF Trust

MDYGBState Street SPDR S&P 400 Mid Cap Growth ETF

In short

MDY Launched in 1995, MDY was the original one-ticker route into the S&P MidCap 400, and it still trades like a heavyweight. The trade-off: a fee set in an era before same-index clones charged pennies.

MDYG The growth half of the S&P MidCap 400, running since 2005. MDYG keeps the mid-cap names that score growth and leaves the value end to its sibling fund, for 0.15% a year.

Stated mandate

MDY The fund seeks to track, before expenses, the price and yield performance of the S&P MidCap 400 Index.

MDYG The fund seeks to track, before fees and expenses, the total return of the S&P MidCap 400 Growth Index.

Why people hold it

MDY A 1995 launch makes it one of the oldest ETFs on the US market, and it is still a multi-billion-dollar, actively traded way to own mid-size America.
Tracking is about as tight as this group gets: roughly 400 mid-size US companies, held with minimal drift from the S&P MidCap 400 Index it follows.ssga.com
Built as a 1940 Act unit investment trust, so it holds the index as published rather than a sample, and passes cash through to holders quarterly.

MDYG One job: mirror the S&P MidCap 400 Growth Index. Tracking has stayed very close to that benchmark.
Trading since 2005 and now a multi-billion-dollar fund from SPDR. A seasoned wrapper, not a fresh launch chasing a theme.
0.15% a year sits right at the median for the S&P MidCap 400 shelf, and it buys you about 240 growth-screened mid caps rather than a short list of bets.
The style call is rules-based: S&P runs the growth screen and the rebalancing, so there is no manager discretion to second-guess. Cash goes out quarterly.

Worth knowing

MDY It charges 0.23%, above the cohort median and several times what same-index options like SPMD (0.03%) and IJH (0.05%) cost. Identical index, different bill.
The trust structure cannot lend out holdings or reinvest dividends between quarterly payouts, small frictions that newer open-end fund structures avoid.
Pure mid-cap exposure, no large-cap ballast: the swings here tend to run wider than a broad S&P 500 or total-market fund.

MDYG Owning the full 400 costs less: SPMD charges 0.03% and IJH 0.05%. The style split is what the extra basis points buy.
By design this is only the growth end of the index. The value side of mid caps is absent, so results can drift from the full 400 in either direction.
Volume is moderate rather than heavyweight for the category, so spreads deserve a look on larger orders.

Full MDY profile⁠

Full MDYG profile⁠

MDY vs MDYG Holdings

How MDY and MDYG differ

Overlap by weight

63.9%

Shared holdings make up 99.96% of MDYG and 65.1% of MDY.

Level by level

Holdings247 in both63.9%
Sector11 Sectors83.2%
Countryby domicile99.3%
Asset classStocks100%

Sector

Sector weights in MDY and MDYG, widest gap first
Sector	Gap	MDY	MDYG
Health Care	MDYG +7.4 points	11.1%	18.4%
Financials	MDY +6.6 points	16.0%	9.4%
Industrials	MDYG +4.9 points	23.2%	28.1%
Technology	MDYG +3.7 points	11.3%	15.0%
Energy	MDY +2.3 points	5.1%	2.8%
Consumer Staples	MDY +2.0 points	3.5%	1.5%
Materials	MDY +1.9 points	6.1%	4.2%
Consumer Discretionary	MDY +1.5 points	11.1%	9.6%
Real Estate	MDY +1.4 points	7.6%	6.2%
Utilities	MDY +1.2 points	3.4%	2.2%
Communication	MDYG +0.9 points	1.7%	2.6%

Country, concentration and asset class

Country by domicile

Country weights in MDY and MDYG, widest gap first
Country	More in MDYMore in MDYG	Gap	MDY	MDYG
United States		MDY +0.7 points	98.1%	97.4%
Other countries (4)		MDYG +0.7 points	1.9%	2.6%

Concentration

Weight in the 10 largest Holdings

MDY6.8%
MDYG12.9%

Securities held

MDY401
MDYG247

Asset class

MDY: Stocks
MDYG: Stocks

Holdings

Only in MDY154
In both247
Only in MDYG0

Only in MDY

154 securities, 34.9% of MDY by weight

U.S. Dollar0.75%
US Foods Holding Corp.0.68%
Reliance Inc.0.63%
SharkNinja Inc.0.55%
Permian Resources Corporation Class A0.54%
TD SYNNEX Corporation0.52%
Reinsurance Group of America Incorporated0.51%
Jones Lang LaSalle Incorporated0.51%
Performance Food Group Co0.50%
Ovintiv Inc0.49%
Pinnacle Financial Partners Inc.0.45%
HF Sinclair Corporation0.45%
WESCO International Inc.0.42%
Toll Brothers Inc.0.42%
Annaly Capital Management Inc.0.42%
BJ's Wholesale Club Holdings Inc.0.41%
Aramark0.41%
Crown Holdings Inc.0.39%
Essential Utilities Inc.0.38%
Range Resources Corporation0.34%
Regal Rexnord Corporation0.33%
Fidelity National Financial Inc. - FNF Group0.33%
Antero Resources Corporation0.33%
Unum Group0.33%
First Horizon Corporation0.32%
Molina Healthcare Inc.0.32%
Watsco Inc.0.32%
Avantor Inc.0.31%
OGE Energy Corp.0.31%
Ally Financial Inc0.31%
Alcoa Corporation0.31%
American Homes 4 Rent Class A0.31%
Booz Allen Hamilton Holding Corporation Class A0.30%
GameStop Corp. Class A0.30%
Ryder System Inc.0.30%
Wintrust Financial Corporation0.30%
SouthState Bank Corporation0.30%
CNH Industrial NV0.30%
Toro Company0.30%
BorgWarner Inc.0.29%
UMB Financial Corporation0.29%
Owens Corning0.28%
Knight-Swift Transportation Holdings Inc. Class A0.28%
Zions Bancorporation NA0.28%
Maplebear Inc.0.28%
Arrow Electronics Inc.0.27%
AptarGroup Inc.0.27%
Voya Financial Inc.0.27%
Corebridge Financial Inc.0.27%
Saia Inc.0.26%

Only in MDYG

0 securities, 0.0% of MDYG by weight

Weight gaps

The 100 widest of 247 Holdings in both funds.

Holding weights in MDY and MDYG, widest gap first
Holding	Gap	MDY	MDYG
TechnipFMC plcFTI	MDYG +0.76 points	0.74%	1.50%
United Therapeutics CorporationUTHR	MDYG +0.74 points	0.71%	1.45%
ATI IncATI	MDYG +0.73 points	0.71%	1.44%
Tenet Healthcare CorporationTHC	MDYG +0.69 points	0.68%	1.37%
Royal Gold Inc.RGLD	MDYG +0.68 points	0.67%	1.35%
Roku Inc. Class AROKU	MDYG +0.64 points	0.63%	1.27%
XPO Inc.XPO	MDYG +0.63 points	0.61%	1.24%
Woodward Inc.WWD	MDYG +0.56 points	0.56%	1.12%
ITT Inc.ITT	MDYG +0.56 points	0.54%	1.10%
Toast Inc. Class ATOST	MDYG +0.54 points	0.53%	1.07%
RB Global Inc.RBA	MDYG +0.53 points	0.51%	1.04%
Exelixis Inc.EXEL	MDYG +0.53 points	0.51%	1.04%
nVent Electric plcNVT	MDYG +0.52 points	0.51%	1.03%
Curtiss-Wright CorporationCW	MDYG +0.52 points	0.51%	1.03%
Neurocrine Biosciences Inc.NBIX	MDYG +0.50 points	0.50%	1.00%
Coeur Mining Inc.CDE	MDYG +0.48 points	0.47%	0.95%
APi Group CorporationAPG	MDYG +0.47 points	0.47%	0.94%
Jazz Pharmaceuticals Public Limited CompanyJAZZ	MDYG +0.47 points	0.45%	0.92%
Talen Energy CorpTLN	MDYG +0.46 points	0.45%	0.91%
RBC Bearings IncorporatedRBC	MDYG +0.46 points	0.44%	0.90%
Somnigroup International Inc.SGI	MDYG +0.45 points	0.44%	0.89%
Medpace Holdings Inc.MEDP	MDYG +0.45 points	0.44%	0.89%
MACOM Technology Solutions Holdings Inc.MTSI	MDYG +0.45 points	0.43%	0.88%
Carpenter Technology CorporationCRS	MDYG +0.42 points	0.41%	0.83%
Encompass Health CorporationEHC	MDYG +0.41 points	0.40%	0.81%
CACI International Inc Class ACACI	MDYG +0.41 points	0.40%	0.81%
Guidewire Software Inc.GWRE	MDYG +0.41 points	0.40%	0.81%
Five Below Inc.FIVE	MDYG +0.41 points	0.39%	0.80%
Elanco Animal Health Inc.ELAN	MDYG +0.39 points	0.38%	0.77%
Penumbra Inc.PEN	MDYG +0.39 points	0.37%	0.76%
Dynatrace Inc.DT	MDYG +0.38 points	0.37%	0.75%
Texas Roadhouse Inc.TXRH	MDYG +0.37 points	0.36%	0.73%
Halozyme Therapeutics Inc.HALO	MDYG +0.36 points	0.35%	0.71%
Coca-Cola Consolidated Inc.COKE	MDYG +0.36 points	0.35%	0.71%
FabrinetFN	MDYG +0.35 points	0.35%	0.70%
BrightSpring Health Services Inc.BTSG	MDYG +0.35 points	0.34%	0.69%
BWX Technologies Inc.BWXT	MDYG +0.34 points	0.32%	0.66%
MasTec Inc.MTZ	MDYG +0.33 points	0.32%	0.65%
Ensign Group Inc.ENSG	MDYG +0.32 points	0.31%	0.63%
Tetra Tech Inc.TTEK	MDYG +0.31 points	0.31%	0.62%
Flowserve CorporationFLS	MDYG +0.31 points	0.30%	0.61%
Hecla Mining CompanyHL	MDYG +0.30 points	0.29%	0.59%
New York Times Company Class ANYT	MDYG +0.30 points	0.29%	0.59%
SiTime CorporationSITM	MDYG +0.29 points	0.29%	0.58%
Watts Water Technologies Inc. Class AWTS	MDYG +0.29 points	0.28%	0.57%
Affiliated Managers Group Inc.AMG	MDYG +0.28 points	0.28%	0.56%
Moog Inc. Class AMOG.A	MDYG +0.28 points	0.27%	0.55%
CareTrust REIT Inc.CTRE	MDYG +0.27 points	0.27%	0.54%
Brinker International Inc.EAT	MDYG +0.27 points	0.26%	0.53%
HealthEquity IncHQY	MDYG +0.26 points	0.26%	0.52%
Kinsale Capital Group Inc.KNSL	MDYG +0.25 points	0.25%	0.50%
Arrowhead Pharmaceuticals Inc.ARWR	MDYG +0.25 points	0.24%	0.49%
Rambus Inc.RMBS	MDYG +0.25 points	0.24%	0.49%
Krystal Biotech Inc.KRYS	MDYG +0.24 points	0.24%	0.48%
Globus Medical Inc Class AGMED	MDYG +0.24 points	0.24%	0.48%
Advanced Energy Industries Inc.AEIS	MDYG +0.24 points	0.23%	0.47%
Sterling Infrastructure Inc.STRL	MDYG +0.23 points	0.23%	0.46%
FirstCash Holdings Inc.FCFS	MDYG +0.23 points	0.22%	0.45%
InterDigital Inc.IDCC	MDYG +0.22 points	0.22%	0.44%
Paylocity Holding Corp.PCTY	MDYG +0.22 points	0.22%	0.44%
Sanmina CorporationSANM	MDYG +0.22 points	0.21%	0.43%
SPX Technologies Inc.SPXC	MDYG +0.22 points	0.21%	0.43%
First Industrial Realty Trust Inc.FR	MDYG +0.22 points	0.21%	0.43%
DigitalOcean Holdings Inc.DOCN	MDYG +0.21 points	0.21%	0.42%
Viavi Solutions IncVIAV	MDYG +0.21 points	0.21%	0.42%
TTM Technologies Inc.TTMI	MDYG +0.21 points	0.21%	0.42%
Corcept Therapeutics Incorporated.CORT	MDYG +0.21 points	0.20%	0.42%
Qualys Inc.QLYS	MDYG +0.20 points	0.20%	0.40%
Kratos Defense & Security Solutions Inc.KTOS	MDYG +0.20 points	0.20%	0.40%
ExlService Holdings Inc.EXLS	MDYG +0.20 points	0.19%	0.39%
Churchill Downs IncorporatedCHDN	MDYG +0.20 points	0.19%	0.39%
FormFactor Inc.FORM	MDYG +0.19 points	0.19%	0.38%
Antero Midstream Corp.AM	MDYG +0.19 points	0.19%	0.38%
Dycom Industries Inc.DY	MDYG +0.20 points	0.18%	0.38%
UL Solutions Inc. Class AULS	MDYG +0.19 points	0.18%	0.37%
Hexcel CorporationHXL	MDYG +0.19 points	0.18%	0.37%
Celsius Holdings Inc.CELH	MDYG +0.18 points	0.17%	0.35%
Ormat Technologies Inc.ORA	MDYG +0.17 points	0.17%	0.34%
MKS Inc.MKSI	MDYG +0.16 points	0.39%	0.55%
AppFolio Inc Class AAPPF	MDYG +0.17 points	0.16%	0.33%
Lincoln Electric Holdings Inc.LECO	MDYG +0.17 points	0.44%	0.61%
Hims & Hers Health Inc. Class AHIMS	MDYG +0.17 points	0.16%	0.33%
Ollie's Bargain Outlet Holdings IncOLLI	MDYG +0.17 points	0.16%	0.33%
Sabra Health Care REIT Inc.SBRA	MDYG +0.16 points	0.16%	0.32%
EnerSysENS	MDYG +0.16 points	0.16%	0.32%
NewMarket CorporationNEU	MDYG +0.16 points	0.16%	0.32%
Valaris Ltd.VAL	MDYG +0.16 points	0.16%	0.32%
Mueller Industries Inc.MLI	MDYG +0.16 points	0.35%	0.51%
DT Midstream Inc.DTM	MDYG +0.16 points	0.34%	0.50%
Glaukos CorpGKOS	MDYG +0.16 points	0.39%	0.55%
LivaNova PlcLIVN	MDYG +0.15 points	0.15%	0.30%
Dropbox Inc. Class ADBX	MDYG +0.15 points	0.15%	0.30%
Nextpower Inc.NXT	MDYG +0.15 points	0.47%	0.62%
Option Care Health IncOPCH	MDYG +0.14 points	0.14%	0.28%
AGNC Investment Corp.AGNC	MDYG +0.14 points	0.31%	0.45%
Travel + Leisure Co.TNL	MDYG +0.14 points	0.14%	0.28%
Federated Hermes Inc. Class BFHI	MDYG +0.14 points	0.13%	0.27%
Planet Fitness Inc. Class APLNT	MDYG +0.14 points	0.13%	0.27%
Sotera Health CompanySHC	MDYG +0.13 points	0.14%	0.27%
Valvoline Inc.VVV	MDYG +0.14 points	0.13%	0.27%

All 400 MDY holdings⁠All 247 MDYG holdings⁠

How we measure overlap

Each holding counts at its smaller weight in the two funds, summed over the full Holdings. Sector, country and asset class use the same rule on each fund’s split. Cash, FX and derivative lines stay out of the counts. Two bond funds get no overlap figure.

MDY vs MDYG Cost

Overpaying MDY vs MDYG

$1,622

On $10,000 over 30 years. 7% growth a year before fees, expense ratio only.

MDY 0.23%
$4,759
MDYG 0.15%
$3,137

Amount$10,000

Years30 years

Cost over time

MDY 0.23%
MDYG 0.15%
Overpaying

Year by year

Year	MDY	MDYG	Overpaying
10	$419	$274	$145
20	$1,630	$1,071	$559
30	$4,759	$3,137	$1,622

Expense ratio

0.23%MDY
0.15%MDYG, cheaper

MDYG0.15%MDY0.23%

0.03%0.49%

Middle half of S&P MidCap 400 funds
Median 0.15%

MDYG 5th cheapest of 11 funds

MDY 9th cheapest of 11 funds

MDY vs MDYG Dividends

Last 12 months to Nov 9, 2026

Yield (12M): MDY 1.03%, better; MDYG 0.67%
Payout (12M): MDY $7.01; MDYG $0.70
Last payment: MDY $1.60; MDYG $0.23
Ex-dividend: MDY Sep 18, 2026; MDYG Sep 21, 2026
Paid on: MDY Oct 30, 2026; MDYG Sep 23, 2026
Frequency: MDY Quarterly; MDYG Quarterly

Distribution history

Per share, 2017 to 2026, same scale for both

MDYQuarterly · 39 paymentsAll MDY payments⁠

MDYGQuarterly · 38 paymentsAll MDYG payments⁠

MDY vs MDYG Risk

Fall from peak · 5 years

MDY
MDYG

Risk facts

VolatilityStd dev, 3 years: MDY 15.1%, betterMDYG 15.9%
Return per unit of riskSharpe ratio, 3 years: MDY 0.83, betterMDYG 0.79
Worst fallMax drawdown, 5 years: MDY −24.0%, betterMDYG −29.3%
Market sensitivityBeta, 5 years: MDY 1.01MDYG 1.07; Market = 1

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