Sunstone Asset Management, L.P.

CIK

2111996

Location

New York, NY

Portfolio Value

Micro $74,601,990

Diversification

Diversified

Filing Date

Global Rank

#5,896 / 8,232 ▲ 680

Top Industry

Software - Infrastructure 21.9%

3Y Alpha vs SPY

+41.0%

Period ended 2 months ago

Filed May 14, 2026 · 31d

2 quarters · since Dec 2025

Clone Performance

Feb 2026–Jun 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+19.4%

SPY

+9.1%

Annualised alpha

+41.0%

Max drawdown

−10.1%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

49 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

7.1%

+0.3 pts

Top 5

24.5%

−1.8 pts

Top 10

40.9%

−5.8 pts

HHI

295

Diversified−50

Portfolio Trend

2 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Technology	69.8%	$52,077,471	33
Consumer Cyclical	8.9%	$6,676,628	6
Communication Services	8.7%	$6,507,494	5
Financial Services	6.0%	$4,484,097	2
Real Estate	5.0%	$3,754,758	2
Unclassified	1.5%	$1,101,542	1

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

16 positions

Ticker	Company	Δ Shares	Shares	Value
SONY	Sony Group Corp	+14,700	49,626	$1,027,258
MDB	MongoDB, Inc.	+10,545	15,996	$3,915,340
NVDA	Nvidia Corp	+10,000	30,441	$5,308,910
SE	Sea Ltd	+7,000	13,614	$1,127,375
JOYY	JOYY Inc.	+4,800	18,705	$1,092,184
AMAT	Applied Materials Inc /De	+4,400	7,500	$2,563,425
NTNX	Nutanix, Inc.	+2,990	32,890	$1,250,148
SNPS	Synopsys Inc	+2,420	7,430	$2,945,846
SHOP	Shopify Inc.	+2,290	7,190	$852,877
DASH	DoorDash, Inc.	+1,840	15,700	$2,357,355
MTSI	MACOM Technology Solutions Holdings, Inc.	+1,500	14,261	$3,166,940
TWLO	Twilio Inc	+1,051	11,566	$1,455,234
MSFT	Microsoft Corp	+1,000	5,900	$2,184,003
NOW	ServiceNow, Inc.	+730	8,030	$839,536
ORCL	Oracle Corp	+500	5,500	$809,105
GLD	Spdr Gold Trust	+370	2,560	$1,101,542
No positions match the current search.

Trimmed

Positions the filer reduced

4 positions

Ticker	Company	Δ Shares	Shares	Value
FLEX	Flex Ltd.	−3,250	30,274	$1,981,736
AVGO	Broadcom Inc.	−2,520	2,721	$842,176
TTMI	Ttm Technologies Inc	−1,475	12,100	$1,178,782
SNDK	Sandisk Corp	−400	2,600	$1,651,884
No positions match the current search.

New Positions

Positions the filer opened this quarter

17 positions

Ticker	Company	Shares	Value
PANW	Palo Alto Networks Inc	17,113	$2,743,556
AMD	Advanced Micro Devices Inc	11,096	$2,257,259
GLW	Corning Inc /Ny	15,171	$2,062,800
APH	Amphenol Corp /De/	14,500	$1,832,075
KLAC	Kla Corp	960	$1,413,513
NOK	Nokia Corp	164,800	$1,324,992
INTU	Intuit Inc.	2,880	$1,245,254
SNOW	Snowflake Inc.	7,200	$1,085,904
RMBS	Rambus Inc	11,746	$1,010,508
U	Unity Software Inc.	42,900	$941,226
RBLX	Roblox Corp	14,729	$833,072
ADI	Analog Devices Inc	2,400	$763,536
ZS	Zscaler, Inc.	3,760	$527,490
TCOM	Trip.com Group Ltd	9,700	$482,963
ZM	Zoom Communications, Inc.	4,200	$337,638
ESTC	Elastic N.V.	6,600	$329,934
S	SentinelOne, Inc.	20,000	$257,600
No positions match the current search.

Sold Out

Positions the filer fully exited

8 positions

Ticker	Company	Shares	Value
MNDY	monday.com Ltd.	11,641	$1,717,745
TXN	Texas Instruments Inc	8,348	$1,448,294
FORM	Formfactor Inc	15,409	$859,514
TTD	Trade Desk, Inc.	20,000	$759,200
DDOG	Datadog, Inc.	3,206	$435,983
BE	Bloom Energy Corp	4,800	$417,072
SMCI	Super Micro Computer, Inc.	14,000	$409,780
KVYO	Klaviyo, Inc.	10,335	$335,577
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

49 positions · $74,601,990 total · as of Mar 31, 2026

All sectors Communication Services Consumer Cyclical Financial Services Real Estate Technology

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
NVDA	Nvidia Corp Technology	Added	30,441	+10,000	$5,308,910	+39.3%	7.12%
MDB	MongoDB, Inc. Technology	Added	15,996	+10,545	$3,915,340	+71.1%	5.25%
MTSI	MACOM Technology Solutions Holdings, Inc. Technology	Added	14,261	+1,500	$3,166,940	+44.9%	4.25%
TDS	Telephone & Data Systems Inc /De/ Communication Services	Held	70,604	0	$2,972,428	+2.7%	3.98%
SNPS	Synopsys Inc Technology	Added	7,430	+2,420	$2,945,846	+25.2%	3.95%
PANW	Palo Alto Networks Inc Technology	NEW	17,113	NEW	$2,743,556	NEW	3.68%
AMAT	Applied Materials Inc /De Technology	Added	7,500	+4,400	$2,563,425	+221.8%	3.44%
DASH	DoorDash, Inc. Consumer Cyclical	Added	15,700	+1,840	$2,357,355	−24.9%	3.16%
MRSH	Marsh & Mclennan Companies, Inc. Financial Services	Held	13,132	0	$2,277,745	−6.5%	3.05%
AMD	Advanced Micro Devices Inc Technology	NEW	11,096	NEW	$2,257,259	NEW	3.03%
V	Visa Inc. Financial Services	Held	7,300	0	$2,206,352	−13.8%	2.96%
MSFT	Microsoft Corp Technology	Added	5,900	+1,000	$2,184,003	−7.8%	2.93%
ABNB	Airbnb, Inc. Consumer Cyclical	Held	16,700	0	$2,108,876	−7.0%	2.83%
GLW	Corning Inc /Ny Technology	NEW	15,171	NEW	$2,062,800	NEW	2.77%
EQIX	Equinix Inc Real Estate	Held	2,085	0	$2,043,800	+27.9%	2.74%
FLEX	Flex Ltd. Technology	Reduced	30,274	-3,250	$1,981,736	−2.2%	2.66%
APH	Amphenol Corp /De/ Technology	NEW	14,500	NEW	$1,832,075	NEW	2.46%
AMT	American Tower Corp /Ma/ Real Estate	Held	9,914	0	$1,710,958	−1.7%	2.29%
SNDK	Sandisk Corp Technology	Reduced	2,600	-400	$1,651,884	+132.0%	2.21%
NFLX	Netflix Inc Communication Services	Held	16,000	0	$1,538,400	+2.5%	2.06%
TWLO	Twilio Inc Technology	Added	11,566	+1,051	$1,455,234	−2.7%	1.95%
KLAC	Kla Corp Technology	NEW	960	NEW	$1,413,513	NEW	1.89%
NOK	Nokia Corp Technology	NEW	164,800	NEW	$1,324,992	NEW	1.78%
NTNX	Nutanix, Inc. Technology	Added	32,890	+2,990	$1,250,148	−19.1%	1.68%
INTU	Intuit Inc. Technology	NEW	2,880	NEW	$1,245,254	NEW	1.67%
TTMI	Ttm Technologies Inc Technology	Reduced	12,100	-1,475	$1,178,782	+25.8%	1.58%
SE	Sea Ltd Consumer Cyclical	Added	13,614	+7,000	$1,127,375	+33.6%	1.51%
CLS	Celestica Inc Technology	Held	3,998	0	$1,126,156	−4.7%	1.51%
GLD	Spdr Gold Trust	Added	2,560	+370	$1,101,542	+26.9%	1.48%
JOYY	JOYY Inc. Communication Services	Added	18,705	+4,800	$1,092,184	+21.3%	1.46%
SNOW	Snowflake Inc. Technology	NEW	7,200	NEW	$1,085,904	NEW	1.46%
SONY	Sony Group Corp Technology	Added	49,626	+14,700	$1,027,258	+14.9%	1.38%
RMBS	Rambus Inc Technology	NEW	11,746	NEW	$1,010,508	NEW	1.35%
U	Unity Software Inc. Technology	NEW	42,900	NEW	$941,226	NEW	1.26%
SHOP	Shopify Inc. Technology	Added	7,190	+2,290	$852,877	+8.1%	1.14%
OLED	Universal Display Corp \Pa\ Technology	Held	9,217	0	$844,830	−21.5%	1.13%
AVGO	Broadcom Inc. Technology	Reduced	2,721	-2,520	$842,176	−53.6%	1.13%
NOW	ServiceNow, Inc. Technology	Added	8,030	+730	$839,536	−24.9%	1.13%
RBLX	Roblox Corp Communication Services	NEW	14,729	NEW	$833,072	NEW	1.12%
ORCL	Oracle Corp Technology	Added	5,500	+500	$809,105	−17.0%	1.08%
ADI	Analog Devices Inc Technology	NEW	2,400	NEW	$763,536	NEW	1.02%
ETSY	Etsy Inc Consumer Cyclical	Held	10,900	0	$544,782	−9.8%	0.73%
ZS	Zscaler, Inc. Technology	NEW	3,760	NEW	$527,490	NEW	0.71%
TCOM	Trip.com Group Ltd Consumer Cyclical	NEW	9,700	NEW	$482,963	NEW	0.65%
ZM	Zoom Communications, Inc. Technology	NEW	4,200	NEW	$337,638	NEW	0.45%
ESTC	Elastic N.V. Technology	NEW	6,600	NEW	$329,934	NEW	0.44%
S	SentinelOne, Inc. Technology	NEW	20,000	NEW	$257,600	NEW	0.35%
ZIP	Ziprecruiter, Inc. Communication Services	Held	38,810	0	$71,410	−52.8%	0.10%
EM	Smart Share Global Ltd Consumer Cyclical	Held	48,918	0	$55,277	−3.4%	0.07%