MDY · SPDR S&P MidCap 400 ETF Trust

400 holdings · expense ratio 0.23% · top 10 = 7.8% · concentration score 0/100 · holdings as of 2026-09-04

Top 25 holdings

#	Holding	Weight
1	TWLOTwilio Inc. Class A	0.98%
2	ILMNIllumina Inc.	0.91%
3	FTITechnipFMC plc	0.88%
4	PEverpure Inc. Class A	0.87%
5	ATIATI Inc	0.80%
6	OKTAOkta Inc. Class A	0.79%
7	NVTnVent Electric plc	0.70%
8	CRSCarpenter Technology Corporation	0.65%
9	USFDUS Foods Holding Corp.	0.63%
10	THCTenet Healthcare Corporation	0.63%
11	XPOXPO Inc.	0.63%
12	CDECoeur Mining Inc.	0.61%
13	RGLDRoyal Gold Inc.	0.59%
14	ENTGEntegris Inc.	0.59%
15	CWCurtiss-Wright Corporation	0.58%
16	UTHRUnited Therapeutics Corporation	0.57%
17	WWDWoodward Inc.	0.57%
18	RSReliance Inc.	0.57%
19	ROKURoku Inc. Class A	0.56%
20	SNXTD SYNNEX Corporation	0.54%
21	PRPermian Resources Corporation Class A	0.51%
22	ITTITT Inc.	0.51%
23	NTNXNutanix Inc. Class A	0.50%
24	EWBCEast West Bancorp Inc.	0.50%
25	OVVOvintiv Inc	0.49%

Sector split

Industrials

23.8%

Financials

14.8%

Information Technology

14.4%

Health Care

10.3%

Consumer Discretionary

9.8%

Real Estate

6.9%

Materials

5.9%

Energy

5.2%

Consumer Staples

3.3%

Utilities

3.0%

Communication Services

1.5%

Cash & Other

1.0%

What has changed

Between July 2026 and September 2026, from 3 months on record:

	July 2026	September 2026	Change
Largest holding	ILMN0.9%	TWLO1.0%	changed hands
Top 10 holdings	7.4%	7.8%	+0.5pp
Positions published	400	400	no change

MDY's largest position changed from ILMN to TWLO over this window. The two weights are not compared, because they belong to different companies.

One point per month, taken from the issuer's published holdings file. Tracking began July 2026 — figures from before then were not retained.

Overlaps most with

IJH · 99%VB · 44%VSMAX · 44%TSPS · 43%VXF · 43%VBR · 41%

Share of each fund held in common, by weight, after looking through both.

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Holdings from the issuer's published holdings file, as of 2026-09-04. Weights are fractions of the fund. Diagnostics, not advice — x-ray your whole portfolio.