TSUMX Mutual Fund

NAV$15.50

AUM$105M

TER0.70%

Holdings221

See how much of TSUMX you already own

Just $25 once·$99/mo·Download sample

X-ray my portfolio free

TSUMX Mutual Fund

NAV$15.50

Thornburg Summit Fund Class I

AUM$105M

TER0.70%

Holdings221

See how much of TSUMX you already own

Just $25 once·$99/mo·Download sample

X-ray my portfolio free

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

Showing top 50 of 220 holdings · as of Jul 31, 2026

TSUMX holdings, by weight
#	Ticker	Name	Weight	Cumulative	Shares	Mkt value	Share chg	Sector	Industry
1	—	Tsmc	3.61%	3.6%	53,792	$4.04M	-	-	-
2	—	Samsung Electronics (Equity)	3.59%	7.2%	21,805	$4.01M	-	-	-
3	ZEG	Zegona Communications Plc	2.70%	9.9%	152,953	$3.01M	-2.7K	-	-
4	AMZN	Amazon.com IncConsumer Disc. · Internet	2.56%	12.5%	10,535	$2.86M	-	Consumer Disc.	Internet
5	LMN	Lumine Group IncInfo Tech · IT Services	2.46%	14.9%	159,179	$2.75M	+7.3K	Info Tech	IT Services
6	Debt	Us Treasury N/B	2.38%	17.3%	2,780,000	$2.66M	-	-	-
7	—	Colliers International Group, Inc.Real Estate · Real Estate Management	2.27%	19.6%	25,801	$2.54M	+579	Real Estate	Real Estate Management
8	C	Citigroup Inc.Financials · Banks	2.13%	21.7%	17,967	$2.38M	-	Financials	Banks
9	GOOGL	Alphabet Inc,Class AComm. Services · Interactive Media	2.05%	23.7%	6,433	$2.29M	-148	Comm. Services	Interactive Media
10	ORAN	Orange Sa (France)	2.05%	25.8%	119,713	$2.29M	-	-	-
11	SHEL	Shell PlcEnergy · Oil & Gas	1.85%	27.6%	45,162	$2.07M	-	Energy	Oil & Gas
12	BNPP	Bnp Paribas	1.62%	29.3%	14,304	$1.81M	-890	-	-
13	RO	Roche Holding Ag	1.61%	30.9%	4,119	$1.80M	-375	-	-
14	ROKOB	Roko Ab	1.54%	32.4%	8,996	$1.72M	+293	-	-
15	META	Meta Platforms IncComm. Services · Interactive Media	1.51%	33.9%	3,031	$1.69M	-	Comm. Services	Interactive Media
16	CSU	Constellation Software Inc/CanadaInfo Tech · Software	1.49%	35.4%	776	$1.66M	-	Info Tech	Software
17	Debt	Treasury BondFinancials · Diversified Financial Services	1.48%	36.9%	2,445,000	$1.65M	-	Financials	Diversified Financial Services
18	MDT	Medtronic Plc Ordinary SharesHealth Care · Healthcare Equip.	1.48%	38.4%	19,357	$1.65M	-	Health Care	Healthcare Equip.
19	—	Liberty Oilfield Services, Inc.Energy · Energy Equipment	1.44%	39.8%	85,797	$1.61M	+30.6K	Energy	Energy Equipment
20	SLB	Schlumberger Nv.Energy · Energy Equipment	1.43%	41.2%	32,297	$1.60M	-1.0K	Energy	Energy Equipment
21	NVDA	Nvidia CorpInfo Tech · Semiconductors	1.41%	42.7%	7,843	$1.57M	-	Info Tech	Semiconductors
22	V	Visa Inc Class AInfo Tech · IT Services	1.37%	44.0%	4,166	$1.53M	-	Info Tech	IT Services
23	Debt	United States Treasury Strip Coupon	1.34%	45.4%	3,900,000	$1.50M	-	-	-
24	AVGO	Broadcom IncInfo Tech · Semiconductors	1.31%	46.7%	3,760	$1.46M	-	Info Tech	Semiconductors
25	MSFT	Microsoft CorpInfo Tech · Software	1.21%	47.9%	2,909	$1.35M	-	Info Tech	Software
26	T	AT&T IncComm. Services · Diversified Telecom	1.14%	49.0%	54,682	$1.27M	-	Comm. Services	Diversified Telecom
27	MA	Mastercard IncFinancials · Capital Markets	1.13%	50.2%	2,211	$1.27M	-	Financials	Capital Markets
28	—	Canadian Pac Kans City Ltd NpvIndustrials · Road & Rail	1.10%	51.3%	13,867	$1.23M	-2.4K	Industrials	Road & Rail
29	CME	Cme Group, Cl AFinancials · Capital Markets	1.04%	52.3%	4,318	$1.16M	-	Financials	Capital Markets
30	—	AstraZeneca PLC	1.03%	53.3%	6,780	$1.15M	-	-	-
31	—	Schwab Strategic TFinancials · Capital Markets	0.98%	54.3%	10,362	$1.09M	-	Financials	Capital Markets
32	—	Round One Corp	0.98%	55.3%	143,400	$1.10M	-	-	-
33	—	Open Text CorpInfo Tech · Software	0.97%	56.3%	42,633	$1.08M	-	Info Tech	Software
34	—	Total Fina Elf Holdings Usa, Inc.	0.96%	57.2%	12,107	$1.07M	-	-	-
35	GLEN	Glencore PlcMaterials · Metals & Mining	0.82%	58.0%	125,911	$921.5K	-	Materials	Metals & Mining
36	—	Galaxy Entertainment Group Limited Shs	0.80%	58.8%	205,000	$894.0K	-	-	-
37	—	Icon Plc -	0.79%	59.6%	5,397	$882.8K	-613	-	-
38	—	Keyence Corp Jpy50	0.78%	60.4%	1,719	$876.8K	-	-	-
39	MELI	Mercadolibre IncInfo Tech · IT Services	0.75%	61.2%	445	$835.7K	-	Info Tech	IT Services
40	—	Tenaris Sa Sponsored Adr (1 Ads : 2 Ordinary)Materials · Metals & Mining	0.72%	61.9%	14,109	$808.9K	-	Materials	Metals & Mining
41	TEP	Teleperformance	0.69%	62.6%	9,684	$770.5K	-	-	-
42	CCCS	Ccc Intelligent Solutions HoldInfo Tech · Software	0.68%	63.2%	124,197	$756.4K	-	Info Tech	Software
43	—	Freddie Mac Pool	0.68%	63.9%	931,948	$764.8K	-	-	-
44	—	Shopify Inc. Cl AInfo Tech · Software	0.63%	64.6%	6,024	$705.7K	-	Info Tech	Software
45	Debt	United States Treasury Bonds 4.75% 4.75 2056-02-15	0.63%	65.2%	759,000	$701.6K	-	-	-
46	—	ASML Holding NVInfo Tech · Semiconductors	0.62%	65.8%	418	$691.3K	-	Info Tech	Semiconductors
47	MRK	Merck & Company IncHealth Care · Pharmaceuticals	0.61%	66.4%	5,273	$686.5K	-	Health Care	Pharmaceuticals
48	—	Thornburg Capital Management Fund	0.61%	67.0%	67,824	$678.2K	-	-	-
49	LHX	L3Harris Technologies Inc.Industrials · Aerospace & Defense	0.59%	67.6%	2,371	$656.9K	-	Industrials	Aerospace & Defense
50	Debt	United States Treasury Note/BondFinancials · Banks	0.59%	68.2%	665,000	$661.7K	-	Financials	Banks
More holdings · Pro

FundXLS Pro

See the other 170 holdings of TSUMX

X-ray every fund you own at once, ETFs and mutual funds that hold stocks directly, and see how much of your money lands on the same stocks twice.

Unlock FundXLS Pro$45/quarter Pro · Cancel anytime

TSUMX Mutual Fund All Holdings

TSUMX holdings total 221 positions. The top 10 holdings account for 25.8% of the fund, led by Tsmc at 3.6%, Samsung Electronics (Equity) at 3.6%, Zegona Communications Plc at 2.7%.

TSUMX portfolio concentration is well-diversified, with the top 10 representing 25.8% of total assets. The largest sector exposure is Financials at 16.2%.

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