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Focused investors/Stephen Mandel

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

Live quotes available for 21 of 31 rows. Rows without a quote are marked unavailable.

1BABAALIBABA GROUP HLDG LTD8.25%Add +52.2%9,732,169$1.6B$164.76No quote
2MSFTMICROSOFT CORP8.08%Add +9.9%13,737,471$1.57B$114.37No quote
3ADBEADOBE SYS INC7.53%Add +21.7%5,424,771$1.46B$269.95No quote
4ATVIACTIVISION BLIZZARD INC6.91%Add +13.2%16,138,688$1.34BNo quoteNo quote
5IQVIQVIA HLDGS INC5.61%Reduce -17.0%8,403,439$1.09B$129.74No quote
6GOOGALPHABET INC5.47%Add +35.5%891,299$1.06B$1193.47No quote
7EAELECTRONIC ARTS INC4.87%Add +24.4%7,855,868$946.55M$120.49No quote
8STZCONSTELLATION BRANDS INC4.78%Add +11.2%4,311,764$929.7M$215.62No quote
9CPCANADIAN PAC RY LTD4.25%Add +36.2%3,896,747$825.88M$211.94No quote
10UNHUNITEDHEALTH GROUP INC4.13%Reduce -26.8%3,017,661$802.82M$266.04No quote
11WYNNWYNN RESORTS LTD3.89%Add +56.8%5,955,497$756.71M$127.06No quote
12TRUTRANSUNION3.72%Reduce -3.1%9,819,201$722.5M$73.58No quote
13AMZNAMAZON COM INC3.59%Reduce -17.9%348,814$698.67M$2003.00No quote
14CSXCSX CORP3.59%Reduce -28.5%9,430,475$698.33M$74.05No quote
15TDGTRANSDIGM GROUP INC3.38%Add +0.1%1,763,113$656.41M$372.30No quote
16METAFACEBOOK INC3.27%Add +13.5%3,863,203$635.34M$164.46No quote
17NVDANVIDIA CORP3.23%Add +4.7%2,235,268$628.16M$281.02No quote
18NOWSERVICENOW INC3.19%Add +5.1%3,166,637$619.49M$195.63No quote
19MELIMERCADOLIBRE INC3.13%Reduce -17.8%1,785,259$607.83M$340.47No quote
20FDCFIRST DATA CORP NEW2.76%New21,911,495$536.17MNo quoteNo quote
21UNPUNION PAC CORP2.70%New3,224,826$525.1M$162.83No quote
22PYPLPAYPAL HLDGS INC2.69%Reduce -5.7%5,962,509$523.75M$87.84No quote
23FLTFLEETCOR TECHNOLOGIES INC0.59%Reduce -50.2%504,075$114.85MNo quoteNo quote
24SESEA LTD0.28%-3,963,222$54.81M$13.83No quote
25NIONIO INC0.09%New3,736,290$18.07MNo quoteNo quote
31SQSQUARE INC-Sold0$0No quoteNo quote
30SBACSBA COMMUNICATIONS CORP NEW-Sold0$0No quoteNo quote
29PAGSPAGSEGURO DIGITAL LTD-Sold0$0No quoteNo quote
28MHKMOHAWK INDS INC-Sold0$0No quoteNo quote
27DLTRDOLLAR TREE INC-Sold0$0No quoteNo quote
26BKNGBOOKING HLDGS INC-Sold0$0No quoteNo quote