WSMDX Mutual Fund

NAV$31.74

AUM$2.4B

TER0.99%

Holdings84

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WSMDX Mutual Fund

NAV$31.74

William Blair Small-Mid Cap Growth Fund Class I

AUM$2.4B

TER0.99%

Holdings84

See how much of WSMDX you already own

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

Showing top 50 of 84 holdings · as of Mar 31, 2026

WSMDX holdings, by weight
#	Ticker	Name	Weight	Cumulative	Shares	Mkt value	Share chg	Sector	Industry
1	PRMB	Primo Brands Corp	2.22%	2.2%	1,328,343	$25.01M	+58.3K	-	-
2	TWST	Twist Bioscience Corp.Health Care · Biotechnology	2.16%	4.4%	512,073	$24.33M	-54.1K	Health Care	Biotechnology
Share changes, sector and industry · Pro
3	LSCC	Lattice Semiconductor Corp.	2.11%	6.5%	256,685	$23.81M
4	BWXT	Bwx Technologies, Inc.	2.05%	8.5%	112,849	$23.08M
5	AKAM	Akamai Technologies Inc.	2.01%	10.5%	196,800	$22.60M
6	—	F5 Networks Inc.	2.01%	12.6%	78,244	$22.64M
7	MLI	Mueller Industries Inc	2.01%	14.6%	204,200	$22.63M
8	—	Nextpower Inc Class A	1.98%	16.5%	184,900	$22.29M
9	ONTO	Onto Innovation Inc	1.98%	18.5%	108,666	$22.28M
10	INSM	Insmed Inc	1.92%	20.4%	132,551	$21.67M
11	TLN	Talen Energy Corp	1.89%	22.3%	66,500	$21.23M
12	MDGL	Madrigal Pharmaceuticals Inc	1.79%	24.1%	38,600	$20.21M
13	PSTG	Pure Storage Inc. Class A	1.79%	25.9%	342,100	$20.20M
14	CW	Curtiss-wright Corp	1.76%	27.7%	29,100	$19.82M
15	EG	Everest Group Ltd	1.72%	29.4%	59,132	$19.33M
16	COHR	Coherent, Inc	1.71%	31.1%	80,600	$19.20M
17	—	Northern Venture Trust Plc Ordinary Shares	1.67%	32.8%	159,100	$18.82M
18	GMED	Globus Medical, Inc. (Class A)	1.66%	34.4%	217,495	$18.74M
19	CCJ	Cameco Corp	1.66%	36.1%	172,388	$18.72M
20	CLH	Clean Harbors	1.66%	37.8%	65,100	$18.67M
21	CIEN	Ciena Corp	1.53%	39.3%	44,500	$17.28M
22	CRS	Carpenter Technology Corpcommon Stock	1.52%	40.8%	43,500	$17.15M
23	—	First Horizon National Corp	1.51%	42.3%	746,500	$16.99M
24	DCI	Donaldson Co Inc	1.47%	43.8%	195,700	$16.61M
25	Debt	Fixed Inc Clearing Corp.Repo	1.46%	45.2%	-	$16.47M
26	LECO	Lincoln Electric Holdings Inc	1.42%	46.7%	64,200	$15.99M
27	HALO	Halozyme Therapeutics Inc	1.40%	48.1%	244,400	$15.80M
28	TECH	Bio-Techne Corp	1.39%	49.5%	298,700	$15.61M
29	BSY	Bentley Systems Inc Class B	1.38%	50.8%	443,300	$15.57M
30	CG	Carlyle Group Inc.	1.36%	52.2%	317,493	$15.36M
31	CHDN	Churchill Downs Inc	1.32%	53.5%	164,900	$14.81M
32	—	Reliance Steel & Aluminum Co.	1.30%	54.8%	48,300	$14.68M
33	LOPE	Grand Canyon Education Inc	1.29%	56.1%	85,200	$14.49M
34	DT	Dynatrace Inc	1.27%	57.4%	386,586	$14.30M
35	BWA	BorgWarner Inc	1.27%	58.6%	262,697	$14.25M
36	—	Sterling Construction Company Inc	1.26%	59.9%	34,700	$14.13M
37	—	-	1.23%	61.1%	73,700	$13.80M
38	SN	Sharkninja Inc	1.21%	62.3%	128,500	$13.61M
39	BWIN	The Baldwin Insurance Group Inc.	1.18%	63.5%	603,410	$13.24M
40	—	Advanced Drainag Tm B 1ln 7/26	1.17%	64.7%	96,200	$13.19M
41	HQY	Healthequity Inc	1.16%	65.9%	156,800	$13.10M
42	GH	Guardant Health Inc	1.15%	67.0%	139,700	$12.90M
43	GKOS	Glaukos Corp.	1.09%	68.1%	114,100	$12.28M
44	MANH	Manhattan Associates Inc	1.09%	69.2%	92,400	$12.30M
45	PLNT	Planet Fitness Inc	1.09%	70.3%	165,300	$12.30M
46	—	Cullen/Frost Bankers, Inc.	1.09%	71.4%	89,500	$12.27M
47	CAVA	Cava Group, Inc.	1.06%	72.4%	147,600	$11.94M
48	PSN	Parsons Corp	1.05%	73.5%	218,300	$11.83M
49	DOCS	Doximity Inc	1.03%	74.5%	497,252	$11.59M
50	EXP	Eagle Materials Inc	1.03%	75.5%	61,187	$11.59M
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WSMDX Mutual Fund All Holdings

WSMDX holdings total 84 positions. The top 10 holdings account for 20.4% of the fund, led by Primo Brands Corp at 2.2%, Twist Bioscience Corp. at 2.2%, Lattice Semiconductor Corp. at 2.1%.

WSMDX portfolio concentration is well-diversified, with the top 10 representing 20.4% of total assets. The largest sector exposure is Information Technology at 21.0%.

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