TRSZX Mutual Fund

NAV$25.24

Holdings510

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TRSZX Mutual Fund

NAV$25.24

T Rowe Price Mid-Cap Index Fund Class Z

Holdings510

See how much of TRSZX you already own

Just $25 once·$99/mo·Download sample

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Overview Performance Chart Dividends Top Holdings All Holdings Sectors Geography Similar Compare Overlap

Showing top 50 of 510 holdings · as of Mar 31, 2026

TRSZX holdings, by weight
#	Ticker	Name	Weight	Cumulative	Shares	Mkt value	Share chg	Sector	Industry
1	Debt	Treasury Reserve Fund - Collateral	2.28%	2.3%	8,521,422	$8.52M	-	-	-
2	MRVL	Marvell Technology Group Ltd.Info Tech · Semiconductors	1.87%	4.2%	70,377	$6.97M	+7.7K	Info Tech	Semiconductors
Share changes, sector and industry · Pro
3	—	Spotify	1.66%	5.8%	12,790	$6.20M
4	—	Cloudflare Inc (180 Day Lockup)	1.44%	7.3%	26,070	$5.38M
5	LNG	Cheniere Energy Inc.	1.35%	8.6%	17,723	$5.03M
6	SNOW	Snowflake Inc	1.11%	9.7%	27,598	$4.16M
7	—	Anglogold Ashanti Plc	1.09%	10.8%	41,922	$4.08M
8	NU	NU Holdings Ltd/Cayman Islands	1.07%	11.9%	278,401	$4.00M
9	FERG	Ferguson Enterprises	0.99%	12.9%	15,897	$3.71M
10	ALNY	Alnylam Pharmaceuticals Inc.	0.93%	13.8%	10,548	$3.49M
11	MSTR	Microstrategy Incorporated Class A	0.87%	14.7%	25,968	$3.24M
12	RBLX	Roblox Corp., Class A	0.78%	15.4%	51,648	$2.92M
13	INSM	Insmed Inc	0.76%	16.2%	17,380	$2.84M
14	—	Rocket Lab Corp Common Stock Usd	0.70%	16.9%	40,628	$2.61M
15	FTI	Technipfmc Plc Ordinary Shares	0.62%	17.5%	33,265	$2.30M
16	—	Caseys General	0.60%	18.1%	3,072	$2.24M
17	NTRA	Natera Inc	0.59%	18.7%	10,965	$2.19M
18	VEEV	Veeva Systems Inc	0.58%	19.3%	12,379	$2.17M
19	—	Restaurant Brands International Inc.	0.56%	19.8%	28,315	$2.09M
20	UTHR	United Therapeutics Corp	0.56%	20.4%	3,520	$2.09M
21	CW	Curtiss-wright Corp	0.56%	21.0%	3,053	$2.08M
22	CPNG	Coupang LLC	0.55%	21.5%	108,601	$2.05M
23	FTAI	FTAI Aviation Ltd	0.55%	22.1%	8,456	$2.07M
24	—	Flex Ltd	0.54%	22.6%	30,541	$2.00M
25	—	Lpl Holdings	0.53%	23.1%	6,614	$1.99M
26	MKL	Markel Group Inc	0.53%	23.7%	1,034	$1.98M
27	—	Xpo Logistics Inc.	0.50%	24.2%	9,516	$1.85M
28	RGLD	Royal Gold Inc	0.48%	24.6%	6,979	$1.78M
29	WWD	Woodward Inc	0.48%	25.1%	4,971	$1.78M
30	ZM	Zoom Communications Inc	0.48%	25.6%	22,120	$1.78M
31	USFD	US Foods Holding Corp	0.46%	26.1%	18,622	$1.72M
32	BURL	Burlington Stores Inc	0.45%	26.5%	5,218	$1.70M
33	ATI	Ati Inc	0.44%	27.0%	11,185	$1.63M
34	MTZ	Mastec Inc	0.44%	27.4%	5,163	$1.66M
35	MDB	Mongodb, Inc.	0.43%	27.8%	6,547	$1.60M
36	SOFI	Sofi Technologies Inc	0.43%	28.3%	100,668	$1.60M
37	ILMN	Illumina, Inc.	0.42%	28.7%	12,756	$1.57M
38	—	Nvent Electric Plc Ordinary Shares	0.42%	29.1%	13,220	$1.56M
39	CRS	Carpenter Technology Corpcommon Stock	0.42%	29.5%	3,996	$1.58M
40	BWXT	Bwx Technologies, Inc.	0.41%	29.9%	7,575	$1.55M
41	PSTG	Pure Storage Inc. Class A	0.41%	30.3%	26,113	$1.54M
42	RPRX	Royalty Pharma Plc Class A Ordinary Share	0.41%	30.8%	31,922	$1.53M
43	—	New Liberty Formula One Series C	0.40%	31.2%	17,417	$1.48M
44	TWLO	Twilio Inc. Class A	0.40%	31.6%	11,740	$1.48M
45	ASTS	Ast Spacemobile Inc Class A	0.40%	32.0%	17,933	$1.49M
46	ENTG	Entegris Inc	0.39%	32.3%	12,446	$1.46M
47	—	Rb Global, Inc	0.39%	32.7%	15,391	$1.48M
48	RDDT	Reddit, Class A	0.39%	33.1%	10,754	$1.45M
49	OVV	Ovintiv Inc.	0.38%	33.5%	23,836	$1.41M
50	—	Brookfield Asset Management Ltd. Cl A Ltd Vtg Shs	0.38%	33.9%	31,754	$1.41M
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TRSZX Mutual Fund All Holdings

TRSZX holdings total 510 positions. The top 10 holdings account for 13.8% of the fund, led by Treasury Reserve Fund - Collateral at 2.3%, Marvell Technology Group Ltd. at 1.9%, Spotify at 1.7%.

TRSZX portfolio concentration is well-diversified, with the top 10 representing 13.8% of total assets. The largest sector exposure is Information Technology at 16.3%.

TRSZX sectors provide a detailed breakdown. TRSZX overlap shows how holdings compare to other funds in your portfolio.