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State Street® SPDR® S&P 400™ Mid Cap Growth ETF

SPDR · US78464A8210

State Street® SPDR® S&P 400™ Mid Cap Growth ETF is an exchange-traded fund (ETF) from SPDR, traded under the ticker MDYG (ISIN US78464A8210). It lets you buy a basket of holdings in a single trade, spreading your money across them rather than one company. In plain terms it is about owning small slices of companies, so you share in their…

· Tracks the S&P MidCap 400 Growth Index index ?

Equity ?Unknown Physical ?United States ?

Low yearly feeOwns the shares directlyOtherBroadly spread

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SPDR funds Domiciled in United States Unknown Physically replicated Other stocks Yearly fee under 0.25%

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Fund size (AUM) ?

€2.5B

1-year return ?

+24.4%

Price Return · to 2026-08-19

Yearly fee (TER) ?

0.15%

All-in cost ≈ 0.00%

About this fund

What you own

The S&P MidCap 400 Growth Index index is the benchmark this fund aims to copy. By holding it, this fund gives you a stake in around 247 companies across Other in a single purchase.

How it works

The fund actually buys every share in the index it tracks (full replication).

Owning every holding keeps things transparent — what is in the index is what the fund actually owns. It can be a touch costlier to run for indexes with thousands of tiny positions, since the fund has to buy and maintain them all. There is no swap bank involved, so there is no extra “what if the partner fails” question to weigh.

Cost

0.15%Yearly fee (TER)

0.00%All-in cost

The yearly running cost of the fund, shown as a % of your money. Lower is cheaper.

For example, a 0.20% fee works out at €0.20 a year for every €100 invested — that’s a generic illustration of the mechanic, not this fund’s own fee. It is skimmed quietly from inside the fund a little each day, so you never get a bill — but it drags on your return every year you hold. On a broad index ETF it is usually a small fraction of a percent; the gap between a cheap and a pricey fund looks tiny on day one but compounds over decades, which is why it is worth a glance.

Fund facts

Index tracked ?

S&P MidCap 400 Growth Index

Replication ?

Physical

Full — buys every share

Launched

Nov 2005

21-year track record

Performance

Growth of $100 invested — the line starts at $100.

State Street® SPDR® S&P 400™ Mid Cap Growth ETF

End-of-day prices, rebased to a common start so the shapes are comparable. Past performance does not predict future results.

YTD+20.0%

1 year+24.4%

3 years+16.1%

5 years+7.6%

Return, year by year

-19.9

+15.8

+14.8

+6.4

'22'23'24'25

3 of 4 up yearsBest: 2023 +15.8%Worst: 2022 -19.9%Calendar-year total returns, in USD

How bumpy has it been?

17.9%

Volatility (1y) ?

How much the price swings year to year — lower is calmer.

-25.8%

Worst drop (3y) ?

The biggest fall from a peak over the last three years.

0.85

Return for the risk (3y) ?

Reward earned per unit of bumpiness.

The bigger picture

+42.1%

Since inception

Total growth since launch — about +7.1% a year.

+43.2%

Best 12 months

The strongest one-year stretch on record.

-23.5%

Worst 12 months

The weakest one-year stretch on record.

-29.4%

Worst fall on record ?

It clawed back in about 21 months.

What's inside

By sector ?

Industrials27.7%

Technology19.8%

Health Care11.2%

Financials7.4%

Consumer Discretionary6.8%

Corporate6.0%

Cash/Other5.4%

Real Estate4.4%

The 10 biggest holdings make up 15.0% of the fund — the rest is spread across roughly 237 more companies.

Top 10 holdings

#	Company	Weight
1	TWILIO INC A	2.0%
2	EVERPURE INC A	1.8%
3	ATI INC	1.6%
4	TECHNIPFMC PLC	1.6%
5	NVENT ELECTRIC PLC	1.4%
6	CARPENTER TECHNOLOGY	1.4%
7	CURTISS WRIGHT CORP	1.4%
8	OKTA INC	1.3%
9	XPO INC	1.3%
10	TENET HEALTHCARE CORP	1.2%

Where to buy this fund

Where you live:

Set from your language & location — change it if it's wrong.

Where it trades

Exchange	Ticker	Currency
NYSE	MDYG	USD	★ Primary
USD listings
E1	MDYGUSD	USD
EU	MDYGUSD	USD
MF	MDYG*	USD
MM	MDYG*	USD
MU	MDYG*	USD
NYSE Arca	MDYG	USD
OC	MDYG	USD
OD	MDYG	USD
TH	4JZ8	USD
UA	MDYG	USD
UB	MDYG	USD
UC	MDYG	USD
UD	MDYG	USD
UF	MDYG	USD
UM	MDYG	USD
US	MDYG	USD
UT	MDYG	USD
UX	MDYG	USD
VF	MDYG	USD
VG	MDYG	USD
VJ	MDYG	USD
VK	MDYG	USD
VP	MDYG	USD
VY	MDYG	USD
X2	MDYGUSD	USD
XA	MDYGUSD	USD
XB	MDYGUSD	USD
XE	MDYGUSD	USD
XF	MDYGUSD	USD
XG	MDYGUSD	USD
XH	MDYGUSD	USD
XJ	MDYGUSD	USD
XL	MDYGUSD	USD
XO	MDYGUSD	USD
XQ	MDYGUSD	USD
XS	MDYGUSD	USD
XU	MDYGUSD	USD
XV	MDYGUSD	USD
XW	MDYGUSD	USD
XX	MDYGUSD	USD
XZ	MDYGUSD	USD

For serious comparison — full data holdings, percentiles, advanced risk, tilt, flows

Full holdings

As of 2026-08-19 · the fund's own published holdings.

#	Company	Weight
1	TWILIO INC A	2.0%
2	EVERPURE INC A	1.8%
3	ATI INC	1.6%
4	TECHNIPFMC PLC	1.6%
5	NVENT ELECTRIC PLC	1.4%
6	CARPENTER TECHNOLOGY	1.4%
7	CURTISS WRIGHT CORP	1.4%
8	OKTA INC	1.3%
9	XPO INC	1.3%
10	TENET HEALTHCARE CORP	1.2%
11	UNITED THERAPEUTICS CORP	1.1%
12	WOODWARD INC	1.1%
13	ROKU INC	1.0%
14	MACOM TECHNOLOGY SOLUTIONS H	1.0%
15	ITT INC	1.0%
16	COEUR MINING INC	1.0%
17	ROYAL GOLD INC	1.0%
18	FABRINET	1.0%
19	RBC BEARINGS INC	0.9%
20	MASTEC INC	0.9%
21	RB GLOBAL INC	0.9%
22	API GROUP CORP	0.9%
23	TOAST INC CLASS A	0.9%
24	STERLING INFRASTRUCTURE INC	0.9%
25	NEUROCRINE BIOSCIENCES INC	0.9%
26	TALEN ENERGY CORP	0.9%
27	ILLUMINA INC	0.8%
28	JAZZ PHARMACEUTICALS PLC	0.8%
29	BWX TECHNOLOGIES INC	0.8%
30	GUIDEWIRE SOFTWARE INC	0.8%
31	SITIME CORP	0.8%
32	CACI INTERNATIONAL INC CL A	0.8%
33	DYNATRACE INC	0.8%
34	MKS INC	0.7%
35	TEXAS ROADHOUSE INC	0.7%
36	BURLINGTON STORES INC	0.7%
37	SOMNIGROUP INTERNATIONAL INC	0.7%
38	MEDPACE HOLDINGS INC	0.7%
39	TTM TECHNOLOGIES	0.7%
40	FIVE BELOW	0.7%
41	EXELIXIS INC	0.7%
42	PENUMBRA INC	0.7%
43	ARROWHEAD PHARMACEUTICALS IN	0.7%
44	ADVANCED ENERGY INDUSTRIES	0.7%
45	ENCOMPASS HEALTH CORP	0.7%
46	HALOZYME THERAPEUTICS INC	0.6%
47	DYCOM INDUSTRIES INC	0.6%
48	KRATOS DEFENSE + SECURITY	0.6%
49	HECLA MINING CO	0.6%
50	MOOG INC CLASS A	0.6%
51	ELANCO ANIMAL HEALTH INC	0.6%
52	MUELLER INDUSTRIES INC	0.6%
53	SANMINA CORP	0.6%
54	SPX TECHNOLOGIES INC	0.6%
55	LINCOLN ELECTRIC HOLDINGS	0.6%
56	WATTS WATER TECHNOLOGIES A	0.6%
57	ENSIGN GROUP INC/THE	0.5%
58	RAMBUS INC	0.5%
59	FLOWSERVE CORP	0.5%
60	COCA COLA CONSOLIDATED INC	0.5%
61	NEW YORK TIMES CO A	0.5%
62	NUTANIX INC A	0.5%
63	LATTICE SEMICONDUCTOR CORP	0.5%
64	NEXTPOWER INC CL A	0.5%
65	DT MIDSTREAM INC	0.5%
66	DIGITALOCEAN HOLDINGS INC	0.5%
67	GLOBUS MEDICAL INC A	0.5%
68	AFFILIATED MANAGERS GROUP	0.5%
69	EAST WEST BANCORP INC	0.5%
70	ROIVANT SCIENCES LTD	0.5%
71	TETRA TECH INC	0.5%
72	ENTEGRIS INC	0.5%
73	BRIGHTSPRING HEALTH SERVICES	0.5%
74	CARETRUST REIT INC	0.5%
75	VIAVI SOLUTIONS INC	0.5%
76	HEALTHEQUITY INC	0.5%
77	INTERDIGITAL INC	0.5%
78	KRYSTAL BIOTECH INC	0.4%
79	SEMTECH CORP	0.4%
80	FIRST INDUSTRIAL REALTY TR	0.4%
81	WP CAREY INC	0.4%
82	KINSALE CAPITAL GROUP INC	0.4%
83	TRANSUNION	0.4%
84	FIRSTCASH HOLDINGS INC	0.4%
85	LAMAR ADVERTISING CO A	0.4%
86	CLEAN HARBORS INC	0.4%
87	PINTEREST INC CLASS A	0.4%
88	BIOMARIN PHARMACEUTICAL INC	0.4%
89	ONTO INNOVATION INC	0.4%
90	HEXCEL CORP	0.4%
91	DONALDSON CO INC	0.4%
92	ANTERO MIDSTREAM CORP	0.4%
93	OMEGA HEALTHCARE INVESTORS	0.4%
94	ACUITY INC	0.4%
95	EVERCORE INC A	0.4%
96	APPLIED INDUSTRIAL TECH INC	0.4%
97	STIFEL FINANCIAL CORP	0.4%
98	GRACO INC	0.4%
99	MANHATTAN ASSOCIATES INC	0.4%
100	ORMAT TECHNOLOGIES INC	0.4%
101	RENAISSANCERE HOLDINGS LTD	0.4%
102	NEWMARKET CORP	0.4%
103	EQUITABLE HOLDINGS INC	0.4%
104	ENERSYS	0.4%
105	IES HOLDINGS INC	0.4%
106	DOCUSIGN INC	0.4%
107	CARLISLE COS INC	0.4%
108	EASTGROUP PROPERTIES INC	0.4%
109	QUALYS INC	0.3%
110	HIMS + HERS HEALTH INC	0.3%
111	EQUITY LIFESTYLE PROPERTIES	0.3%
112	AEROVIRONMENT INC	0.3%
113	PAYLOCITY HOLDING CORP	0.3%
114	AMERICAN HEALTHCARE REIT INC	0.3%
115	RPM INTERNATIONAL INC	0.3%
116	SERVICE CORP INTERNATIONAL	0.3%
117	UL SOLUTIONS INC CLASS A	0.3%
118	CHURCHILL DOWNS INC	0.3%
119	AAON INC	0.3%
120	ADVANCED DRAINAGE SYSTEMS IN	0.3%
121	VALMONT INDUSTRIES	0.3%
122	PRIMERICA INC	0.3%
123	SEI INVESTMENTS COMPANY	0.3%
124	VALARIS LTD	0.3%
125	CYTOKINETICS INC	0.3%
126	CRANE CO	0.3%
127	GAMING AND LEISURE PROPERTIE	0.3%
128	DICK S SPORTING GOODS INC	0.3%
129	EXLSERVICE HOLDINGS INC	0.3%
130	AUTOLIV INC	0.3%
131	COGNEX CORP	0.3%
132	CULLEN/FROST BANKERS INC	0.3%
133	SOLSTICE ADV MATERIALS INC	0.3%
134	UIPATH INC CLASS A	0.3%
135	DROPBOX INC CLASS A	0.3%
136	SOTERA HEALTH CO	0.3%
137	SABRA HEALTH CARE REIT INC	0.3%
138	ALLISON TRANSMISSION HOLDING	0.3%
139	OLD REPUBLIC INTL CORP	0.3%
140	VICOR CORP	0.3%
141	HYATT HOTELS CORP CL A	0.3%
142	APPFOLIO INC A	0.3%
143	CARLYLE GROUP INC/THE	0.3%
144	NATIONAL FUEL GAS CO	0.3%
145	LITTELFUSE INC	0.3%
146	REPLIGEN CORP	0.3%
147	OLLIE S BARGAIN OUTLET HOLDI	0.3%
148	TRAVEL LEISURE CO	0.2%
149	FEDERATED HERMES INC	0.2%
150	BOYD GAMING CORP	0.2%
151	LANTHEUS HOLDINGS INC	0.2%
152	OSHKOSH CORP	0.2%
153	CELSIUS HOLDINGS INC	0.2%
154	MP MATERIALS CORP	0.2%
155	LIVANOVA PLC	0.2%
156	STAG INDUSTRIAL INC	0.2%
157	VALVOLINE INC	0.2%
158	MSA SAFETY INC	0.2%
159	BRIXMOR PROPERTY GROUP INC	0.2%
160	CUBESMART	0.2%
161	IDACORP INC	0.2%
162	SIMPSON MANUFACTURING CO INC	0.2%
163	AMERICAN FINANCIAL GROUP INC	0.2%
164	AGREE REALTY CORP	0.2%
165	WEX INC	0.2%
166	CORE + MAIN INC CLASS A	0.2%
167	SILICON LABORATORIES INC	0.2%
168	GRAND CANYON EDUCATION INC	0.2%
169	PLANET FITNESS INC CL A	0.2%
170	AECOM	0.2%
171	OPTION CARE HEALTH INC	0.2%
172	DUOLINGO	0.2%
173	ELF BEAUTY INC	0.2%
174	NNN REIT INC	0.2%
175	GATX CORP	0.2%
176	CHEWY INC CLASS A	0.2%
177	HOULIHAN LOKEY INC	0.2%
178	CIRRUS LOGIC INC	0.2%
179	DUTCH BROS INC CLASS A	0.2%
180	BIO RAD LABORATORIES A	0.2%
181	COMMVAULT SYSTEMS INC	0.2%
182	CHEMED CORP	0.2%
183	DOXIMITY INC CLASS A	0.2%
184	EAGLE MATERIALS INC	0.2%
185	FORTUNE BRANDS INNOVATIONS I	0.2%
186	BENTLEY SYSTEMS INC CLASS B	0.2%
187	BRUKER CORP	0.2%
188	HANOVER INSURANCE GROUP INC/	0.2%
189	ALLEGRO MICROSYSTEMS INC	0.2%
190	BRINK S CO/THE	0.2%
191	STANDARDAERO INC	0.2%
192	MGIC INVESTMENT CORP	0.2%
193	KIRBY CORP	0.2%
194	SPROUTS FARMERS MARKET INC	0.2%
195	RYAN SPECIALTY HOLDINGS INC	0.2%
196	H+R BLOCK INC	0.2%
197	WINGSTOP INC	0.2%
198	PEGASYSTEMS INC	0.2%
199	AMKOR TECHNOLOGY INC	0.2%
200	NEXSTAR MEDIA GROUP INC	0.2%
201	WYNDHAM HOTELS + RESORTS INC	0.2%
202	WEATHERFORD INTERNATIONAL PL	0.1%
203	SLM CORP	0.1%
204	NOVANTA INC	0.1%
205	CROCS INC	0.1%
206	ESSENT GROUP LTD	0.1%
207	HILTON GRAND VACATIONS INC	0.1%
208	VAIL RESORTS INC	0.1%
209	CAVA GROUP INC	0.1%
210	GENPACT LTD	0.1%
211	BELDEN INC	0.1%
212	HAEMONETICS CORP/MASS	0.1%
213	EPR PROPERTIES	0.1%
214	TXNM ENERGY INC	0.1%
215	MSC INDUSTRIAL DIRECT CO A	0.1%
216	HAMILTON LANE INC CLASS A	0.1%
217	YETI HOLDINGS INC	0.1%
218	ESAB CORP	0.1%
219	ABERCROMBIE + FITCH CO CL A	0.1%
220	TEXAS CAPITAL BANCSHARES INC	0.1%
221	BILL HOLDINGS INC	0.1%
222	MORNINGSTAR INC	0.1%
223	VONTIER CORP	0.1%
224	SPIRE INC	0.1%
225	GENTEX CORP	0.1%
226	WARNER MUSIC GROUP CORP CL A	0.1%
227	NORTHWESTERN ENERGY GROUP IN	0.1%
228	FIRST FINL BANKSHARES INC	0.1%
229	GRAHAM HOLDINGS CO CLASS B	0.1%
230	INTERNATIONAL BANCSHARES CRP	0.1%
231	UNIVERSAL DISPLAY CORP	0.1%
232	FTI CONSULTING INC	0.1%
233	MATTEL INC	0.1%
234	EXPONENT INC	0.1%
235	COPT DEFENSE PROPERTIES	0.1%
236	PARSONS CORP	0.1%
237	DOLBY LABORATORIES INC CL A	0.1%
238	AVIS BUDGET GROUP INC	0.1%
239	US DOLLAR	0.1%
240	SHIFT4 PAYMENTS INC CLASS A	0.1%
241	MAXIMUS INC	0.1%
242	KNIFE RIVER CORP	0.1%
243	CHOICE HOTELS INTL INC	0.1%
244	MARZETTI COMPANY/THE	0.1%
245	CRANE NXT CO	0.1%
246	SSI US GOV MONEY MARKET CLASS	0.1%
247	CAPRI HOLDINGS LTD	0.0%

⭳ Download full holdings (CSV)

How it ranks vs peers

🪙 Cheaper than 76% of similar ETFs📈 Higher 1-yr return than 73%📈 Higher 3-yr return than 76%📈 Higher 5-yr return than 73%📊 Beat its category by 6.4% (1-yr) (category average +18.0%)📊 Beat its category by 3.7% (3-yr) (category average +12.4%)📊 Beat its category by 2.1% (5-yr) (category average +5.5%)

Versus the Equity (stocks) · Other · USD ETFs we track.

Advanced risk

1.26

Sortino (3y) ?

0.62

Calmar (3y) ?

11.7%

Downside deviation ?

75%

Up months (hit rate) ?

$113.69

52-week high ?

$87.24

52-week low ?

Concentration depth

~147 ?

Effective number of holdings

Roughly 247 companies are held, but the largest names carry most of the weight — so it behaves like ~147 equal-sized positions.

Tilt vs a world tracker

Industrials+16.1

Technology-9.4

Financials-8.9

Corporate+6.0

Communication Services-6.0

Cash/Other+5.4

Percentage points over / under a broad world-equity tracker (not a licensed benchmark).

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Why it's similar	This is the fund on this page.	StocksUnknownPhysicalCheaper fee Tracks a different index in the same category.	StocksUnknownPhysicalCheaper fee Tracks a different index in the same category.	StocksUnknownPhysicalCheaper fee Tracks a different index in the same category.	StocksPhysicalCheaper fee Tracks a different index in the same category.	StocksPhysicalCheaper fee Tracks a different index in the same category.	StocksUnknownPhysicalCheaper fee Tracks a different index in the same category.
Index tracked	S&P MidCap 400 Growth Index	Technology Select Sector Index	FTSE Developed ex US Index	Financial Select Sector Index	® ® S&p® 500 Hdg	® ® S&p® 500 Mxn Hdg	Health Care Select Sector Index
Yearly fee (TER)	0.15%	0.08%	0.03%	0.08%	0.05%	0.05%	0.08%
All-in cost	0.00%	0.00%	0.00%	0.00%	0.06%	0.06%	0.00%
Fund size	€2.5B	€106.4B	€56.1B	€49.2B	€38.1B	€37.9B	€37.3B
Domicile	United States	United States	United States	United States	Ireland	Ireland	United States
Replication	Physical (full)	Physical (full)	Physical (full)	Physical (full)	Physical (full)	Physical (full)	Physical (full)
3-yr return p.a.	+16.1%	+31.3%	+13.9%	+19.4%			+8.3%
5-yr return p.a.	+7.6%	+19.6%	+6.7%	+9.1%			+4.6%
# holdings	247	76	1,494	80	505	505	63

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Data as of 2026-08-19 · Source: issuer data, compiled by Finance Hamster

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