ETF Research

MDYG: STATE STREET(R) SPDR(R) S & P 400(TM) MID CAP GROWTH ETF

Generated from StockValueFinder data · Updated Oct 11, 2026 11:01 PM
Educational content only. This is not financial advice and is not a recommendation to buy, sell, or hold any ETF.

Share-split context: A forward split was recorded on Jun 13, 2018 with coefficient 3. A forward split turns each old share into multiple new shares and lowers the quoted price per share proportionally. Proportional ownership is unchanged at the split moment, so the split itself creates neither a gain nor a loss. The price-return figures in this report are already split-adjusted.

What this ETF is trying to do

The STATE STREET(R) SPDR(R) S & P 400(TM) MID CAP GROWTH ETF (ticker: MDYG) is an exchange-traded fund that focuses on mid-cap growth companies. This means it invests in medium-sized companies that are expected to grow at a faster rate than the average business.

What the numbers show

As of October 7, 2026, the current price of one share is $105.94. When looking at how this ETF has performed, it is important to understand two different types of returns:

• Price Return: This measures only the change in the share price. For example, the one-year price return was approximately 16.18%, and the three-year price return was approximately 55.47%.

• Total Return: This includes both the share price changes and any cash distributions paid to investors. The one-year total return was approximately 16.98%, and the three-year total return was approximately 59.45%.

This ETF has a history of "forward splits." In June 2018, a split occurred where each old share became three new shares. When a forward split happens, the price per share drops proportionally, but your total ownership stays exactly the same. A split like this does not create a gain or a loss for the investor.

Income and distribution explanation

This ETF provides cash distributions to investors. The distribution yield is approximately 0.66%. This number describes the cash paid out relative to the current price of the ETF. Over the last 12 months, there were four distributions. It is important to remember that a high distribution yield is not the same as total return, and receiving cash does not guarantee that your original investment will stay the same value.

NAV erosion explanation

"NAV erosion" is a term used to describe when the value of the underlying assets in an ETF declines. For MDYG, the erosion-risk score is 100, which is labeled as "No price erosion detected." The erosion severity is rated as "good," meaning there are no signs of significant price deterioration based on the supplied data.

Top Holdings

The following are some of the largest companies held by this ETF. Please note that holdings can change over time:

• Twilio Inc Class A (2.52%)

• Okta Inc Class A (1.95%)

• TechnipFMC PLC (1.50%)

• nVent Electric PLC (1.46%)

• ATI Inc (1.45%)

• United Therapeutics Corp (1.31%)

• Tenet Healthcare Corp (1.16%)

• XPO Inc (1.16%)

• Curtiss-Wright Corp (1.13%)

• Roku Inc Class A (1.13%)

Pros

• The ETF has shown positive price returns and total returns over the last one, three, and five years.

• The erosion-risk score indicates no price erosion was detected.

Cons

• The distribution yield is relatively low at approximately 0.66%.

Beginner takeaway

MDYG has shown growth in both its share price and its total return over several years. While it pays out small cash distributions, the main focus of the numbers is the growth in the value of the shares themselves.

Top Holdings

Structured portfolio holdings supplied by the ETF data provider. These figures are not generated by the AI article.

248 holdings available
# Holding Ticker Weight
1 TWILIO INC CLASS A TWLO 2.52%
2 OKTA INC CLASS A OKTA 1.95%
3 TECHNIPFMC PLC FTI 1.50%
4 NVENT ELECTRIC PLC NVT 1.46%
5 ATI INC ATI 1.45%
6 UNITED THERAPEUTICS CORP UTHR 1.31%
7 TENET HEALTHCARE CORP THC 1.16%
8 XPO INC XPO 1.16%
9 CURTISS-WRIGHT CORP CW 1.13%
10 ROKU INC CLASS A ROKU 1.13%
Show all 248 holdings
1. TWILIO INC CLASS A TWLO 2.52%
2. OKTA INC CLASS A OKTA 1.95%
3. TECHNIPFMC PLC FTI 1.50%
4. NVENT ELECTRIC PLC NVT 1.46%
5. ATI INC ATI 1.45%
6. UNITED THERAPEUTICS CORP UTHR 1.31%
7. TENET HEALTHCARE CORP THC 1.16%
8. XPO INC XPO 1.16%
9. CURTISS-WRIGHT CORP CW 1.13%
10. ROKU INC CLASS A ROKU 1.13%
11. ROYAL GOLD INC RGLD 1.12%
12. MACOM TECHNOLOGY SOLUTIONS HOLDINGS INC MTSI 1.11%
13. WOODWARD INC WWD 1.09%
14. CARPENTER TECHNOLOGY CORP CRS 1.08%
15. COEUR MINING INC CDE 1.02%
16. ITT INC ITT 1.01%
17. DYNATRACE INC ORDINARY SHARES DT 0.94%
18. RBC BEARINGS INC RBC 0.89%
19. FABRINET FN 0.85%
20. JAZZ PHARMACEUTICALS PLC JAZZ 0.85%
21. RB GLOBAL INC RBA 0.85%
22. SITIME CORP ORDINARY SHARES SITM 0.85%
23. STERLING INFRASTRUCTURE INC STRL 0.85%
24. TOAST INC CLASS A TOST 0.84%
25. API GROUP CORP APG 0.83%
26. EXELIXIS INC EXEL 0.81%
27. NEUROCRINE BIOSCIENCES INC NBIX 0.81%
28. SOMNIGROUP INTERNATIONAL INC SGI 0.80%
29. MEDPACE HOLDINGS INC MEDP 0.79%
30. TALEN ENERGY CORP ORDINARY SHARES NEW TLN 0.78%
31. CACI INTERNATIONAL INC CLASS A CACI 0.76%
32. MASTEC INC MTZ 0.75%
33. DIGITALOCEAN HOLDINGS INC DOCN 0.73%
34. TTM TECHNOLOGIES INC TTMI 0.73%
35. MKS INC MKSI 0.72%
36. BWX TECHNOLOGIES INC BWXT 0.71%
37. HALOZYME THERAPEUTICS INC HALO 0.70%
38. PENUMBRA INC PEN 0.70%
39. FIVE BELOW INC FIVE 0.68%
40. ENCOMPASS HEALTH CORP EHC 0.67%
41. GUIDEWIRE SOFTWARE INC GWRE 0.67%
42. RAMBUS INC RMBS 0.65%
43. ROIVANT SCIENCES LTD ORDINARY SHARES ROIV 0.65%
44. SANMINA CORP SANM 0.65%
45. SEMTECH CORP SMTC 0.65%
46. HECLA MINING CO HL 0.64%
47. NUTANIX INC CLASS A NTNX 0.64%
48. ADVANCED ENERGY INDUSTRIES INC AEIS 0.63%
49. ELANCO ANIMAL HEALTH INC ELAN 0.63%
50. CORCEPT THERAPEUTICS INC CORT 0.62%
51. MOOG INC CLASS A MOG-A 0.61%
52. COCA-COLA CONSOLIDATED INC COKE 0.60%
53. LATTICE SEMICONDUCTOR CORP LSCC 0.59%
54. BURLINGTON STORES INC BURL 0.58%
55. TEXAS ROADHOUSE INC TXRH 0.58%
56. VIAVI SOLUTIONS INC VIAV 0.58%
57. ENSIGN GROUP INC ENSG 0.56%
58. LINCOLN ELECTRIC HOLDINGS INC LECO 0.55%
59. WATTS WATER TECHNOLOGIES INC CLASS A WTS 0.55%
60. BRIGHTSPRING HEALTH SERVICES INC BTSG 0.54%
61. MUELLER INDUSTRIES INC MLI 0.54%
62. AFFILIATED MANAGERS GROUP INC AMG 0.53%
63. ENTEGRIS INC ENTG 0.53%
64. ARROWHEAD PHARMACEUTICALS INC ARWR 0.52%
65. FLOWSERVE CORP FLS 0.52%
66. NEW YORK TIMES CO CLASS A NYT 0.52%
67. KRYSTAL BIOTECH INC KRYS 0.50%
68. CARETRUST REIT INC CTRE 0.49%
69. DT MIDSTREAM INC ORDINARY SHARES DTM 0.49%
70. EAST WEST BANCORP INC EWBC 0.49%
71. SPX TECHNOLOGIES INC SPXC 0.48%
72. BRINKER INTERNATIONAL INC EAT 0.47%
73. FIRSTCASH HOLDINGS INC FCFS 0.47%
74. GLOBUS MEDICAL INC CLASS A GMED 0.47%
75. INTERDIGITAL INC IDCC 0.47%
76. TETRA TECH INC TTEK 0.47%
77. CLEAN HARBORS INC CLH 0.45%
78. DYCOM INDUSTRIES INC DY 0.45%
79. KRATOS DEFENSE & SECURITY SOLUTIONS INC KTOS 0.45%
80. AGNC INVESTMENT CORP AGNC 0.44%
81. FIRST INDUSTRIAL REALTY TRUST INC FR 0.44%
82. W.P. CAREY INC WPC 0.44%
83. DOCUSIGN INC DOCU 0.43%
84. NEXTPOWER INC NXT 0.43%
85. OMEGA HEALTHCARE INVESTORS INC OHI 0.43%
86. HEALTHEQUITY INC HQY 0.42%
87. LAMAR ADVERTISING CO CLASS A LAMR 0.42%
88. ONTO INNOVATION INC ONTO 0.41%
89. MANHATTAN ASSOCIATES INC MANH 0.40%
90. VICOR CORP VICR 0.40%
91. KINSALE CAPITAL GROUP INC KNSL 0.39%
92. RENAISSANCERE HOLDINGS LTD RNR 0.39%
93. ANTERO MIDSTREAM CORP AM 0.38%
94. APPLIED INDUSTRIAL TECHNOLOGIES INC AIT 0.38%
95. DONALDSON CO INC DCI 0.38%
96. n/a AHR 0.38%
97. NEWMARKET CORP NEU 0.38%
98. BIOMARIN PHARMACEUTICAL INC BMRN 0.37%
99. EASTGROUP PROPERTIES INC EGP 0.37%
100. ENERSYS ENS 0.37%
101. SUN COMMUNITIES INC SUI 0.37%
102. GRACO INC GGG 0.36%
103. HEXCEL CORP HXL 0.36%
104. HUBSPOT INC HUBS 0.36%
105. QUALYS INC QLYS 0.36%
106. SEI INVESTMENTS CO SEIC 0.36%
107. ACUITY INC AYI 0.35%
108. EQUITABLE HOLDINGS INC EQH 0.35%
109. EVERCORE INC CLASS A EVR 0.35%
110. n/a HIMS 0.35%
111. IES HOLDINGS INC IESC 0.34%
112. PAYLOCITY HOLDING CORP PCTY 0.34%
113. REPLIGEN CORP RGEN 0.34%
114. TRANSUNION TRU 0.34%
115. PINTEREST INC CLASS A PINS 0.33%
116. STIFEL FINANCIAL CORP SF 0.33%
117. AAON INC AAON 0.32%
118. EQUITY LIFESTYLE PROPERTIES INC ELS 0.32%
119. ORMAT TECHNOLOGIES INC ORA 0.32%
120. CARLISLE COMPANIES INC CSL 0.31%
121. SERVICE CORP INTERNATIONAL SCI 0.31%
122. AEROVIRONMENT INC AVAV 0.30%
123. SOTERA HEALTH CO ORDINARY SHARES SHC 0.30%
124. VALMONT INDUSTRIES INC VMI 0.30%
125. COGNEX CORP CGNX 0.29%
126. CRANE CO CR 0.29%
127. EXLSERVICE HOLDINGS INC EXLS 0.29%
128. OLLIE'S BARGAIN OUTLET HOLDINGS INC OLLI 0.29%
129. RPM INTERNATIONAL INC RPM 0.29%
130. UL SOLUTIONS INC CLASS A COMMON STOCK ULS 0.29%
131. VALARIS LTD VAL 0.29%
132. ADVANCED DRAINAGE SYSTEMS INC WMS 0.28%
133. CELSIUS HOLDINGS INC CELH 0.28%
134. CHURCHILL DOWNS INC CHDN 0.28%
135. CYTOKINETICS INC CYTK 0.28%
136. GAMING AND LEISURE PROPERTIES INC GLPI 0.28%
137. SABRA HEALTH CARE REIT INC SBRA 0.28%
138. APPFOLIO INC CLASS A APPF 0.27%
139. CULLEN/FROST BANKERS INC CFR 0.27%
140. DROPBOX INC CLASS A DBX 0.27%
141. PRIMERICA INC PRI 0.27%
142. SOLSTICE ADVANCED MATERIALS INC SOLS 0.27%
143. AUTOLIV INC ALV 0.26%
144. HYATT HOTELS CORP CLASS A H 0.26%
145. ALLISON TRANSMISSION HOLDINGS INC ALSN 0.25%
146. LANTHEUS HOLDINGS INC LNTH 0.25%
147. LITTELFUSE INC LFUS 0.25%
148. NATIONAL FUEL GAS CO NFG 0.25%
149. LIVANOVA PLC LIVN 0.24%
150. OLD REPUBLIC INTERNATIONAL CORP ORI 0.24%
151. STAG INDUSTRIAL INC STAG 0.24%
152. FEDERATED HERMES INC CLASS B FHI 0.23%
153. n/a MP 0.23%
154. THE CARLYLE GROUP INC CG 0.23%
155. UIPATH INC CLASS A PATH 0.23%
156. BRIXMOR PROPERTY GROUP INC BRX 0.22%
157. DUOLINGO INC DUOL 0.22%
158. E.L.F. BEAUTY INC ELF 0.22%
159. GRAND CANYON EDUCATION INC LOPE 0.22%
160. IDACORP INC IDA 0.22%
161. MSA SAFETY INC MSA 0.22%
162. SILICON LABORATORIES INC SLAB 0.22%
163. VALVOLINE INC VVV 0.22%
164. AGREE REALTY CORP ADC 0.21%
165. AMERICAN FINANCIAL GROUP INC AFG 0.21%
166. BIO-RAD LABORATORIES INC CLASS A BIO 0.21%
167. BRUKER CORP BRKR 0.21%
168. COMMVAULT SYSTEMS INC CVLT 0.21%
169. OSHKOSH CORP OSK 0.21%
170. TRAVEL&LEISURE CO TNL 0.21%
171. CUBESMART CUBE 0.20%
172. DICK'S SPORTING GOODS INC DKS 0.20%
173. DOXIMITY INC CLASS A DOCS 0.20%
174. GATX CORP GATX 0.20%
175. HOULIHAN LOKEY INC CLASS A HLI 0.20%
176. AECOM ACM 0.19%
177. BOYD GAMING CORP BYD 0.19%
178. CIRRUS LOGIC INC CRUS 0.19%
179. CORE & MAIN INC CLASS A CNM 0.19%
180. NNN REIT INC NNN 0.19%
181. OPTION CARE HEALTH INC OPCH 0.19%
182. SIMPSON MANUFACTURING CO INC SSD 0.19%
183. AMKOR TECHNOLOGY INC AMKR 0.18%
184. CHEMED CORP CHE 0.18%
185. KIRBY CORP KEX 0.18%
186. n/a BSY 0.18%
187. PLANET FITNESS INC CLASS A PLNT 0.18%
188. THE HANOVER INSURANCE GROUP INC THG 0.18%
189. WEX INC WEX 0.18%
190. THE BRINK'S CO BCO 0.17%
191. ALLEGRO MICROSYSTEMS INC ORDINARY SHARES ALGM 0.16%
192. CHEWY INC CHWY 0.16%
193. DUTCH BROS INC CLASS A BROS 0.16%
194. HAEMONETICS CORP HAE 0.16%
195. n/a WH 0.16%
196. PEGASYSTEMS INC PEGA 0.16%
197. STANDARDAERO INC SARO 0.16%
198. WINGSTOP INC WING 0.16%
199. EAGLE MATERIALS INC EXP 0.15%
200. FORTUNE BRANDS INNOVATIONS INC FBIN 0.15%
201. H&R BLOCK INC HRB 0.15%
202. MGIC INVESTMENT CORP MTG 0.15%
203. RYAN SPECIALTY HOLDINGS INC CLASS A RYAN 0.15%
204. ABERCROMBIE & FITCH CO CLASS A ANF 0.14%
205. NEXSTAR MEDIA GROUP INC NXST 0.14%
206. NOVANTA INC NOVT 0.14%
207. SPROUTS FARMERS MARKET INC SFM 0.14%
208. CAVA GROUP INC CAVA 0.13%
209. CROCS INC CROX 0.13%
210. EPR PROPERTIES EPR 0.13%
211. GENPACT LTD G 0.13%
212. n/a WFRD 0.13%
213. SLM CORP SLM 0.13%
214. TXNM ENERGY INC TXNM 0.13%
215. VAIL RESORTS INC MTN 0.13%
216. ESSENT GROUP LTD ESNT 0.12%
217. MSC INDUSTRIAL DIRECT CO INC CLASS A MSM 0.12%
218. n/a WMG 0.12%
219. BELDEN INC BDC 0.11%
220. HILTON GRAND VACATIONS INC HGV 0.11%
221. SPIRE INC SR 0.11%
222. TEXAS CAPITAL BANCSHARES INC TCBI 0.11%
223. ESAB CORP ESAB 0.10%
224. FIRST FINANCIAL BANKSHARES INC FFIN 0.10%
225. GENTEX CORP GNTX 0.10%
226. HAMILTON LANE INC CLASS A HLNE 0.10%
227. INTERNATIONAL BANCSHARES CORP IBOC 0.10%
228. MORNINGSTAR INC MORN 0.10%
229. n/a GHC 0.10%
230. NORTHWESTERN ENERGY GROUP INC NWE 0.10%
231. VONTIER CORP ORDINARY SHARES VNT 0.10%
232. YETI HOLDINGS INC YETI 0.10%
233. BILL HOLDINGS INC ORDINARY SHARES BILL 0.09%
234. COPT DEFENSE PROPERTIES CDP 0.09%
235. DOLBY LABORATORIES INC CLASS A DLB 0.09%
236. EXPONENT INC EXPO 0.09%
237. n/a n/a 0.09%
238. PARSONS CORP PSN 0.09%
239. FTI CONSULTING INC FCN 0.08%
240. MATTEL INC MAT 0.08%
241. MAXIMUS INC MMS 0.08%
242. UNIVERSAL DISPLAY CORP OLED 0.08%
243. AVIS BUDGET GROUP INC CAR 0.07%
244. CHOICE HOTELS INTERNATIONAL INC CHH 0.07%
245. SHIFT4 PAYMENTS INC CLASS A FOUR 0.07%
246. CRANE NXT CO CXT 0.06%
247. KNIFE RIVER CORP KNF 0.06%
248. THE MARZETTI CO MZTI 0.05%
Holdings data last updated Oct 8, 2026 5:11 AM .
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