Q3 2026 13F · SEC CIK 1792397

Gunderson Capital Management LLC

Wealth managerFiled 2026-10-15 for Q3 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $358.8M
Reported positions: 54
Top holdings a year, 3 yrs: +28.5%
Assets under management: $395.8M

Gunderson Capital Management LLC is a wealth manager that reported 54 positions worth $358.8M in its Q3 2026 13F, filed 2026-10-15. Its largest holdings were Seagate Technology Hldngs Pl (STX, 5.4%), Nvidia Corporation (NVDA, 5.3%), Sandisk Corp (SNDK, 5.1%). A portfolio copying its top holdings returned 28.5% a year over the last 3 years, against 20.4% for the S&P 500.

Gunderson Capital Management LLC holdings largest 50 of 54 positions.

Weights are shares of the filer's total reported 13F value, compared with Q2 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Gunderson Capital Management LLC 13F holdings
Stock	% of 13F value	Q2 2026	Shares	Share change	Reported value
STXSeagate Technology Hldngs Pl	5.4%	3.3%	20,971	+67.5%	$19.3M
NVDANvidia Corporation	5.3%	3.8%	83,895	+20.4%	$19.2M
SNDKSandisk Corp	5.1%	2.4%	10,508	+170.5%	$18.3M
TSMTaiwan Semiconductor Manufac	4.5%	4.7%	35,603	-1.5%	$16.2M
GEGe Aerospace	4.5%	2.6%	51,203	+95.1%	$16.0M
GOOGLAlphabet Inc	4.4%	0.1%	45,776	+3799.1%	$15.8M
MUMicron Technology Inc	4.4%	5.6%	14,715	-18.2%	$15.7M
HPEHewlett Packard Enterprise C	4.3%	—	241,183	—	$15.4M
DELLDell Technologies Inc	4.1%	5.8%	27,175	-45.0%	$14.6M
AVGOBroadcom Inc	4.0%	2.4%	40,673	+75.7%	$14.3M
ANETArista Networks Inc	4.0%	2.8%	69,661	+15.8%	$14.2M
AMDAdvanced Micro Devices Inc	3.9%	6.8%	22,973	-47.3%	$14.1M
ASMLAsml Hldg NV	3.6%	3.9%	7,218	-1.0%	$13.1M
LLYEli Lilly & Co	3.3%	3.2%	10,375	+5.6%	$12.0M
PLTRPalantir Technologies Inc	3.3%	—	62,801	—	$11.7M
METAMeta Platforms Inc	3.1%	—	15,294	—	$11.1M
LNGCheniere Energy Inc	3.1%	1.7%	41,126	+55.4%	$11.1M
GEVGe Vernova Inc	2.7%	3.3%	10,369	-0.3%	$9.9M
ASXAse Technology Hldg Co Ltd	2.6%	—	209,276	—	$9.3M
TWLOTwilio Inc	2.5%	—	30,563	—	$8.9M
LRCXLam Research Corp	2.5%	—	27,165	—	$8.9M
MRVLMarvell Technology Inc	2.1%	4.8%	28,928	-51.0%	$7.6M
CLSCelestica Inc	2.0%	1.3%	19,630	+49.6%	$7.1M
TSEMTower Semiconductor Ltd	1.7%	1.8%	26,059	-0.8%	$5.9M
ARGNFArgenx SE	1.6%	—	6,078	—	$5.8M
COHRCoherent Corp	1.5%	—	18,837	—	$5.4M
AMZNAmazon Com Inc	1.5%	0.3%	21,032	+306.6%	$5.2M
WDCWestern Digital Corp Com	1.5%	—	11,469	—	$5.2M
TRGPTarga Res Corp	1.4%	1.4%	18,900	-1.2%	$5.1M
SLBSlb Limited	1.2%	—	91,804	—	$4.5M
AGXArgan Inc	1.1%	2.0%	10,702	+14.4%	$4.0M
AAPLApple Inc	1.0%	0.7%	10,739	+14.9%	$3.6M
VGVenture Global Inc	0.6%	0.5%	177,343	-0.6%	$2.2M
GLDSpdr Gold Tr	0.3%	—	3,300	—	$1.3M
CATCaterpillar Inc	0.3%	—	1,154	—	$936K
WMTWalmart Inc	0.2%	—	8,109	—	$843K
VOOVanguard Index Fds	0.1%	—	660	—	$463K
VUGVanguard Index Fds	0.1%	—	5,074	—	$457K
IVVIshares Tr	0.1%	—	524	—	$401K
MSFTMicrosoft Corp	0.1%	—	668	—	$343K
SITMSitime Corp	0.1%	—	509	—	$332K
DDOGDatadog Inc	0.1%	—	1,168	—	$320K
ETNEaton Corp PLC	0.1%	0.1%	730	+0.0%	$314K
XLKSelect Sector Spdr Tr	0.1%	0.1%	1,601	-13.8%	$313K
SOSouthern Co	0.1%	0.1%	3,453	+0.8%	$286K
RFRegions Financial Corp New	0.1%	—	9,745	—	$262K
ALABAstera Labs Inc	0.1%	—	702	—	$250K
COSTCostco Wholesale Corporation	0.1%	0.1%	266	-55.3%	$243K
AAOIApplied Optoelectronics Inc	0.1%	—	2,282	—	$227K
VICRVicor Corp	0.1%	—	757	—	$219K

What Gunderson Capital Management LLC bought and sold in Q3 2026, against Q2 2026.

New positions

Q2 2026's filing was too long to tell new positions apart.

Added to

GOOGL Alphabet Inc+3799.1% shares
AMZN Amazon Com Inc+306.6% shares
SNDK Sandisk Corp+170.5% shares
GE Ge Aerospace+95.1% shares
AVGO Broadcom Inc+75.7% shares
STX Seagate Technology Hldngs Pl+67.5% shares
LNG Cheniere Energy Inc+55.4% shares
CLS Celestica Inc+49.6% shares

Reduced

COST Costco Wholesale Corporation-55.3% shares
MRVL Marvell Technology Inc-51.0% shares
AMD Advanced Micro Devices Inc-47.3% shares
DELL Dell Technologies Inc-45.0% shares
MU Micron Technology Inc-18.2% shares
XLK Select Sector Spdr Tr-13.8% shares

Left the top 50

Share counts compared with the Q2 2026 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.

How the holdings did against the S&P 500.

1 year: +32.0% /yr; S&P 500 +20.1%
3 years: +28.5% /yr; S&P 500 +20.4%
5 years: +24.3% /yr; S&P 500 +16.1%

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q3 2026	$358.8M	54
Q2 2026	$370.3M	52
Q1 2026	$239.2M	46
Q4 2025	$221.9M	40
Q3 2025	$271.4M	53
Q2 2025	$239.2M	47
Q1 2025	$155.4M	29
Q4 2024	$203.4M	37
Q3 2024	$236.1M	40
Q2 2024	$233.0M	39
Q1 2024	$215.3M	41
Q4 2023	$175.0M	47

Questions about Gunderson Capital Management LLC's portfolio

What stocks does Gunderson Capital Management LLC own?

Gunderson Capital Management LLC's latest 13F, for Q3 2026 and filed Oct 15, 2026, lists 54 positions worth $358.8M. The largest are Seagate Technology Hldngs Pl (STX) at 5.4%, Nvidia Corporation (NVDA) at 5.3%, Sandisk Corp (SNDK) at 5.1%, Taiwan Semiconductor Manufac (TSM) at 4.5% and Ge Aerospace (GE) at 4.5%.

What did Gunderson Capital Management LLC buy last quarter?

In Q3 2026, Gunderson Capital Management LLC added Alphabet Inc (GOOGL) (+3799.1% shares), Amazon Com Inc (AMZN) (+306.6% shares) and Sandisk Corp (SNDK) (+170.5% shares), compared with its Q2 2026 filing.

What did Gunderson Capital Management LLC sell last quarter?

In Q3 2026, Gunderson Capital Management LLC cut from its top 50 Applied Matls Inc (AMAT), cut from its top 50 Ishares Inc (EWY), cut from its top 50 Kla Corp (KLAC), cut from its top 50 Nebius Group N.v. (NBIS), cut from its top 50 Quanta Svcs Inc (PWR), Costco Wholesale Corporation (COST) (-55.3% shares), Marvell Technology Inc (MRVL) (-51.0% shares) and Advanced Micro Devices Inc (AMD) (-47.3% shares), compared with its Q2 2026 filing.

How has Gunderson Capital Management LLC's portfolio performed?

A portfolio copying Gunderson Capital Management LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +28.5% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +32.0% against +20.1%. Over 5 years: +24.3% a year against +16.1%.

When is Gunderson Capital Management LLC's next 13F filing due?

13F filings are due 45 days after each quarter ends. Gunderson Capital Management LLC's filing for the quarter ending Dec 31, 2026 is due by Feb 14, 2027; this page updates the day after it is published.

How much money does Gunderson Capital Management LLC manage?

Gunderson Capital Management LLC reported $395.8M of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $358.8M.