OSTGX Mutual Fund

NAV$19.53

AUM$329M

TER1.12%

Holdings46

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OSTGX Mutual Fund

NAV$19.53

Osterweis Opportunity Fund

AUM$329M

TER1.12%

Holdings46

See how much of OSTGX 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 46 of 46 holdings · as of Sep 30, 2026

OSTGX holdings, by weight
#	Ticker	Name	Weight	Cumulative	Shares	Mkt value	Sector	Industry
1	Debt	Federated U.S. Treasury Cash Reserves Fund Institutional Shares	6.13%	6.1%	21,099,690	$21.10M	-	-
2	TWLO	Twilio Inc. Class AInfo Tech · Software	5.15%	11.3%	60,589	$17.72M	Info Tech	Software
Sector and industry · Pro
3	RGEN	Repligen Corp	3.76%	15.0%	67,365	$12.95M
4	NOVT	Novanta Inc.	3.53%	18.6%	85,360	$12.14M
5	ATRC	Atricure, Inc.	3.48%	22.1%	213,175	$11.98M
6	AX	Axos Financial Inc	3.36%	25.4%	133,705	$11.57M
7	DT	Dynatrace Inc	3.36%	28.8%	200,215	$11.56M
8	—	Spx Corp	3.12%	31.9%	63,381	$10.75M
9	VSEC	Vse Corp	2.85%	34.7%	59,637	$9.82M
10	—	Affirm Inc	2.79%	37.5%	138,720	$9.60M
11	KMTS	Kestra Medical Technologies, Ltd. Common Shares	2.76%	40.3%	336,055	$9.51M
12	RBRK	Rubrik Inc-A	2.69%	43.0%	80,875	$9.26M
13	LOAR	Loar Holdings Inc	2.67%	45.6%	149,115	$9.17M
14	VCEL	Vericel Corp	2.65%	48.3%	226,930	$9.11M
15	—	Firstservice Corp.	2.60%	50.9%	69,890	$8.94M
16	TRNS	Transcat Inc	2.60%	53.5%	101,290	$8.96M
17	CECO	Ceco Environmental Corp	2.58%	56.1%	127,640	$8.89M
18	—	Life Time Inc	2.44%	58.5%	210,170	$8.38M
19	SITM	Sitime Corp	2.41%	60.9%	12,734	$8.30M
20	SMTC	Semtech Corp	2.39%	63.3%	46,120	$8.23M
21	CWST	Casella Waste Systems, Inc., Class A	2.37%	65.7%	101,665	$8.17M
22	TWST	Twist Bioscience Corp.	2.25%	67.9%	40,080	$7.75M
23	CAVA	Cava Group, Inc.	2.24%	70.2%	142,310	$7.70M
24	WAY	Waystar Holding Corp	1.92%	72.1%	261,100	$6.62M
25	DOCN	Digitalocean Holdings Inc	1.78%	73.9%	46,055	$6.14M
26	IRTC	Irhythm Technologies, Inc.	1.76%	75.6%	53,280	$6.06M
27	—	Nextpower Inc Class A	1.72%	77.4%	75,930	$5.92M
28	GH	Guardant Health, Inc	1.71%	79.1%	33,025	$5.89M
29	GKOS	Glaukos Corp.	1.67%	80.7%	35,110	$5.76M
30	BOOT	Boot Barn Holdings Inc	1.58%	82.3%	45,100	$5.43M
31	CDNL	Cardinal Infrastructure Group Inc	1.55%	83.9%	174,715	$5.35M
32	NAVN	Navan Inc	1.48%	85.3%	242,460	$5.09M
33	BROS	Dutch Bros Inc	1.44%	86.8%	128,980	$4.97M
34	COGT	Cogent Biosciences Inc	1.38%	88.2%	148,780	$4.76M
35	CHYM	Chime Financial Inc Class A	1.20%	89.4%	155,380	$4.14M
36	—	Servicetitan Inc-A Sedol Bpgn2Q7	1.16%	90.5%	60,775	$4.00M
37	AMBQ	Ambiq Micro Inc	1.12%	91.6%	56,515	$3.85M
38	AORT	Artivion, Inc.	1.12%	92.8%	168,240	$3.84M
39	DAVE	Dave Inc.	1.05%	93.8%	11,239	$3.61M
40	MTSI	Macom Technology Solutions Holdings, Inc.	1.04%	94.9%	12,625	$3.60M
41	LSCC	Lattice Semiconductor Corp.	1.03%	95.9%	28,330	$3.56M
42	PRAX	Praxis Precision Medicines Inc	1.03%	96.9%	12,149	$3.54M
43	TPB	Turning Point Brands, Inc.	0.86%	97.8%	50,315	$2.95M
44	ALHC	Alignment Healthcare	0.77%	98.5%	325,995	$2.66M
45	AGYS	Agilysys Inc	0.56%	99.1%	19,735	$1.92M
46	ARWR	Arrowhead Pharmaceuticals Inc	0.41%	99.5%	21,520	$1.41M

Not reported for this fund: share changes.

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OSTGX Mutual Fund All Holdings

OSTGX holdings total 46 positions. The top 10 holdings account for 37.5% of the fund, led by Federated U.S. Treasury Cash Reserves Fund Institutional Shares at 6.1%, Twilio Inc. Class A at 5.2%, Repligen Corp at 3.8%.

OSTGX portfolio concentration is moderate, with the top 10 representing 37.5% of total assets. The largest sector exposure is Information Technology at 28.1%.

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