Stephen Mandel - Lone Pine Capital

As of Q2 2026, Stephen Mandel reported 34 long-equity positions worth $16.36B in aggregate.

Copy-investor backtest

Latest quarter: +4.81%
1-year: +0.17%
3-year: +87.28%
5-year: +14.37%
3-year vs S&P 500: +14.05%
5-year vs S&P 500: -59.31%
5-year top 5: +11.49%

Return from mechanically copying the disclosed 13F equity portfolio after each filing and rebalancing at the next. The vs S&P 500 figures subtract SPY over that manager's own rebalance dates, so both sides cover the same days; both are price return, excluding dividends. Method & limitations.

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Filing period

Updated 2026-06-06 from SEC 13F data.

Live quotes available for 27 of 39 rows. Rows without a quote are marked unavailable.


1	META	FACEBOOK INC	6.23%	Add +75.0%	7,701,242	$1.23B	$159.79	No quote
2	ADBE	ADOBE SYS INC	6.18%	Reduce -2.4%	5,649,328	$1.22B	$216.08	No quote
3	STZ	CONSTELLATION BRANDS INC	5.60%	Reduce -0.4%	4,849,090	$1.11B	$227.92	No quote
4	MSFT	MICROSOFT CORP	5.58%	Add +26.0%	12,076,471	$1.1B	$91.27	No quote
5	BABA	ALIBABA GROUP HLDG LTD	5.56%	Reduce -5.8%	5,982,159	$1.1B	$183.54	No quote
6	BKNG	BOOKING HLDGS INC	5.35%	New	507,847	$1.06B	$2080.39	No quote
7	ATVI	ACTIVISION BLIZZARD INC	4.97%	Reduce -15.1%	14,555,953	$981.95M	No quote	No quote
8	IQV	IQVIA HLDGS INC	4.91%	Add +0.2%	9,890,932	$970.4M	$98.11	No quote
9	UNH	UNITEDHEALTH GROUP INC	4.61%	Add +16.8%	4,254,415	$910.45M	$214.00	No quote
10	EA	ELECTRONIC ARTS INC	4.38%	Reduce -2.3%	7,138,016	$865.41M	$121.24	No quote
11	AMZN	AMAZON COM INC	4.24%	Reduce -25.0%	577,796	$836.27M	$1447.34	No quote
12	PYPL	PAYPAL HLDGS INC	4.10%	Add +12.3%	10,659,734	$808.75M	$75.87	No quote
13	CSX	CSX CORP	3.77%	Add +17.4%	13,370,307	$744.86M	$55.71	No quote
14	GOOG	ALPHABET INC	3.40%	Add +8.8%	650,003	$670.67M	$1031.79	No quote
15	TRU	TRANSUNION	3.38%	Add +11.1%	11,741,467	$666.68M	$56.78	No quote
16	AVGO	BROADCOM LTD	3.27%	Add +11.2%	2,737,741	$645.15M	$235.65	No quote
17	DLTR	DOLLAR TREE INC	3.05%	New	6,344,385	$602.08M	$94.90	No quote
18	MELI	MERCADOLIBRE INC	2.93%	Add +5.6%	1,624,158	$578.83M	$356.39	No quote
19	SBAC	SBA COMMUNICATIONS CORP NEW	2.93%	New	3,385,152	$578.59M	$170.92	No quote
20	TSM	TAIWAN SEMICONDUCTOR MFG LTD	2.74%	New	12,349,027	$540.39M	$43.76	No quote
21	BLK	BLACKROCK INC	2.52%	Reduce -16.8%	918,870	$497.77M	$541.72	No quote
22	NOW	SERVICENOW INC	2.24%	Reduce -35.0%	2,677,118	$442.93M	$165.45	No quote
23	TDG	TRANSDIGM GROUP INC	2.19%	-	1,410,402	$432.91M	$306.94	No quote
24	WYNN	WYNN RESORTS LTD	2.09%	Add +78.0%	2,260,749	$412.27M	$182.36	No quote
25	FLT	FLEETCOR TECHNOLOGIES INC	1.18%	Add +43.7%	1,151,593	$233.2M	No quote	No quote
26	TMUS	T MOBILE US INC	1.08%	New	3,486,629	$212.82M	$61.04	No quote
27	SQ	SQUARE INC	0.67%	New	2,694,573	$132.57M	No quote	No quote
28	PAGS	PAGSEGURO DIGITAL LTD	0.35%	New	1,821,925	$69.82M	$38.32	No quote
29	EXAS	EXACT SCIENCES CORP	0.27%	New	1,298,001	$52.35M	$40.33	No quote
30	SE	SEA LTD	0.23%	Add +23.0%	3,963,222	$44.67M	$11.27	No quote
39	CRM	SALESFORCE COM INC	-	Sold	0	$0	No quote	No quote
38	PCLN	PRICELINE GRP INC	-	Sold	0	$0	No quote	No quote
37	MA	MASTERCARD INCORPORATED	-	Sold	0	$0	No quote	No quote
36	TV	GRUPO TELEVISA SA	-	Sold	0	$0	No quote	No quote
35	EQIX	EQUINIX INC	-	Sold	0	$0	No quote	No quote
34	CHTR	CHARTER COMMUNICATIONS INC N	-	Sold	0	$0	No quote	No quote
33	VXX	BARCLAYS BK PLC	-	Sold	0	$0	No quote	No quote
32	BUD	ANHEUSER BUSCH INBEV SA/NV	-	Sold	0	$0	No quote	No quote
31	A	AGILENT TECHNOLOGIES INC	-	Sold	0	$0	No quote	No quote