VIMAX · Vanguard Mid-Cap Index Admiral

272 holdings · expense ratio 0.05% · top 10 = 9.7% · concentration score 3.5/100 · holdings as of 2026-09-30 · SEC N-PORT data (~60-day lag)

Top 25 holdings

#	Holding	Weight
1	NETCloudflare Inc. Class A	1.11%
2	VLOValero Energy Corp.	1.10%
3	MPCMarathon Petroleum Corp.	1.10%
4	PSXPhillips 66	1.01%
5	PWRQuanta Services Inc.	0.96%
6	VRTVertiv Holdings Co. Class A	0.92%
7	DDOGDatadog Inc. Class A	0.91%
8	HWMHowmet Aerospace Inc.	0.89%
9	HOODRobinhood Markets Inc. Class A	0.88%
10	LITELumentum Holdings Inc.	0.86%
11	CEGConstellation Energy Corp.	0.85%
12	HPEHewlett Packard Enterprise Co.	0.79%
13	BEBloom Energy Corp. Class A	0.77%
14	ROSTRoss Stores Inc.	0.74%
15	WBDWarner Bros Discovery Inc.	0.73%
16	MSIMotorola Solutions Inc.	0.73%
17	SLBSchlumberger Ltd.	0.71%
18	HLTHilton Worldwide Holdings Inc.	0.71%
19	DASHDoorDash Inc. Class A	0.71%
20	TGTTarget Corp.	0.70%
21	CMICummins Inc.	0.70%
22	RCLRoyal Caribbean Cruises Ltd.	0.67%
23	GMGeneral Motors Co.	0.67%
24	DLRDigital Realty Trust Inc.	0.64%
25	AEPAmerican Electric Power Co. Inc.	0.64%

Sector split

Industrials

18.8%

Information Technology

15.6%

Financials

14.8%

Health Care

9.2%

Consumer Discretionary

8.8%

Energy

8.6%

Utilities

7.7%

Consumer Staples

5.2%

Real Estate

4.8%

Materials

4.5%

Communication Services

1.5%

Unclassified

0.4%

What has changed

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

	July 2026	September 2026	Change
Largest holding	HWM1.1%	NET1.1%	changed hands
Top 10 holdings	9.1%	9.7%	+0.6pp
Positions published	283	272	−11

VIMAX's largest position changed from HWM to NET 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

VO · 100%VTV · 29%IVE · 26%VOOV · 26%VYM · 22%IWD · 21%

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

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Holdings from SEC N-PORT filings, as of 2026-09-30. Weights are fractions of the fund. Check it against Vanguard's fund page and its SEC filings. Diagnostics, not advice — x-ray your whole portfolio.