MBCSX Mutual Fund

NAV$18.13

TER0.76%

Holdings83

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MBCSX Mutual Fund

NAV$18.13

MassMutual Blue Chip Growth Fund Class R5

TER0.76%

Holdings83

See how much of MBCSX you already own

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

Showing top 50 of 83 holdings · as of Sep 30, 2026

MBCSX holdings, by weight
#	Ticker	Name	Weight	Cumulative	Shares	Mkt value	Sector	Industry
1	NVDA	Nvidia CorpInfo Tech · Semiconductors	15.91%	15.9%	1,265,027	$288.91M	Info Tech	Semiconductors
2	GOOGL	Alphabet IncComm. Services · Interactive Media	7.28%	23.2%	384,375	$132.26M	Comm. Services	Interactive Media
Sector and industry · Pro
3	META	Meta Platforms Inc	5.88%	29.1%	147,089	$106.67M
4	MSFT	Microsoft Corp	5.82%	34.9%	206,012	$105.66M
5	AMZN	Amazon.com Inc	4.62%	39.5%	337,003	$83.96M
6	TSLA	Tesla Inc	4.12%	43.6%	210,930	$74.84M
7	V	Visa Inc Class A	3.52%	47.1%	177,720	$63.86M
8	GOOG	Alphabet Inc. C	3.32%	50.5%	177,039	$60.32M
9	AVGO	Broadcom Inc	3.05%	53.5%	157,894	$55.45M
10	AAPL	Apple Inc	2.82%	56.3%	153,968	$51.27M
11	NFLX	Netflix Inc	2.53%	58.9%	660,762	$45.98M
12	AMAT	Applied Material	2.47%	61.3%	87,821	$44.91M
13	LRCX	Lam Research Corp	2.45%	63.8%	135,411	$44.48M
14	ORCL	Oracle Corp -	1.82%	65.6%	241,083	$33.10M
15	—	Shopify Inc	1.75%	67.4%	214,419	$31.80M
16	BA	Boeing Co	1.70%	69.1%	166,288	$30.94M
17	LLY	Eli Lilly & Co	1.69%	70.8%	26,490	$30.65M
18	CVNA	Carvana Co. Class A	1.68%	72.4%	488,618	$30.56M
19	AMD	Advanced Micro Devices Inc	1.36%	73.8%	40,412	$24.72M
20	VRTX	Vertex Pharmaceuticals Inc	1.33%	75.1%	46,246	$24.18M
21	MNST	Monster Beverage Corp.	1.32%	76.4%	576,466	$23.99M
22	Debt	Fixed Inc Clearing Corp.Repo	1.04%	77.5%	18,833,465	$18.83M
23	MA	Mastercard Inc	1.02%	78.5%	33,452	$18.45M
24	ISRG	Intuitive Surgical Inc	0.99%	79.5%	44,118	$17.94M
25	—	Thermo Fisher	0.96%	80.4%	25,689	$17.34M
26	DIS	Walt Disney Co	0.94%	81.4%	161,903	$16.98M
27	REGN	Regeneron Pharmaceuticals, Inc.	0.91%	82.3%	21,882	$16.59M
28	—	General Electric Co.	0.90%	83.2%	52,220	$16.31M
29	CRM	Salesforce Inc	0.89%	84.1%	70,707	$16.23M
30	ADSK	Autodesk, Inc.	0.83%	84.9%	72,070	$15.06M
31	ASL	Asml Holding Nv Unsponsored Adr Ordinary Shares	0.81%	85.7%	8,118	$14.71M
32	EXPD	Expeditors International Of Washington Inc.	0.65%	86.4%	63,704	$11.76M
33	DE	Deere & Co Sedol 2261203	0.56%	86.9%	15,229	$10.23M
34	SBUX	Starbucks Corp	0.56%	87.5%	107,440	$10.10M
35	SEIC	Sei Investments Co.	0.54%	88.0%	95,615	$9.82M
36	TSM	Taiwan Semiconductor Manufacturing Co Ltd	0.54%	88.6%	21,607	$9.86M
37	—	Novartis Ag Sponsored Adr (1 Ads : 1 Ordinary)	0.50%	89.1%	63,711	$9.08M
38	CB	Chubb Ltd.	0.50%	89.6%	27,757	$9.03M
39	GEV	GE Vernova Inc. CDR (CAD Hedged)	0.49%	90.1%	9,319	$8.86M
40	—	Novo-Nordisk A/S-Spons Adr	0.49%	90.6%	236,151	$8.95M
41	CRWD	Crowdstrike Holdings Inc	0.47%	91.0%	32,160	$8.51M
42	BKNG	Booking Holdings, Inc.	0.46%	91.5%	51,280	$8.35M
43	RO	Roche Holdings Ag	0.41%	91.9%	144,931	$7.52M
44	MPWR	Monolithic Power Systems Inc	0.40%	92.3%	5,341	$7.20M
45	NOW	Servicenow, Inc.	0.37%	92.7%	50,163	$6.72M
46	CAT	Caterpillar Inc	0.35%	93.0%	7,935	$6.43M
47	ILMN	Illumina, Inc.	0.33%	93.3%	21,685	$5.93M
48	XYZ	Block, Inc	0.33%	93.7%	80,989	$5.96M
49	YUM	Yum! Brands, Inc.	0.33%	94.0%	44,088	$6.01M
50	ROST	Ross Stores, Inc.	0.30%	94.3%	23,559	$5.50M
More holdings · Pro

Not reported for this fund: share changes.

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MBCSX Mutual Fund All Holdings

MBCSX holdings total 83 positions. The top 10 holdings account for 56.3% of the fund, led by Nvidia Corp at 15.9%, Alphabet Inc at 7.3%, Meta Platforms Inc at 5.9%.

MBCSX portfolio concentration is relatively high, with the top 10 representing 56.3% of total assets. The largest sector exposure is Information Technology at 47.2%.

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