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 2026-09-12 from SEC 13F data.
Live quotes available for 25 of 40 rows. Rows without a quote are marked unavailable.
| 1 | SHOP | SHOPIFY INC | 7.59% | Add +2.9% | 1,722,548 | $1.76B | $1022.97 | |
| 2 | META | FACEBOOK INC | 6.60% | Add +11.1% | 5,849,522 | $1.53B | $261.90 | |
| 3 | MSFT | MICROSOFT CORP | 5.84% | Add +3.3% | 6,440,494 | $1.35B | $210.33 | |
| 4 | UNH | UNITEDHEALTH GROUP INC | 5.30% | Add +30.5% | 3,946,431 | $1.23B | $311.77 | |
| 5 | COUP | COUPA SOFTWARE INC | 5.12% | Add +103.8% | 4,329,269 | $1.19B | No quote | No quote |
| 6 | PYPL | PAYPAL HLDGS INC | 5.10% | Reduce -18.7% | 6,000,915 | $1.18B | $197.03 | |
| 7 | GPN | GLOBAL PMTS INC | 4.89% | Add +33.5% | 6,395,026 | $1.14B | $177.58 | |
| 8 | NFLX | NETFLIX INC | 4.85% | Add +40.2% | 2,251,223 | $1.13B | $500.03 | |
| 9 | AMZN | AMAZON COM INC | 4.58% | Reduce -26.3% | 337,308 | $1.06B | $3148.73 | |
| 10 | HUM | HUMANA INC | 3.88% | Reduce -10.3% | 2,173,844 | $899.73M | $413.89 | |
| 11 | DOCU | DOCUSIGN INC | 3.84% | New | 4,135,353 | $890.09M | $215.24 | |
| 12 | SQ | SQUARE INC | 3.76% | New | 5,368,133 | $872.59M | No quote | No quote |
| 13 | MTCH | MATCH GROUP INC NEW | 3.74% | New | 7,833,531 | $866.78M | $110.65 | |
| 14 | NOW | SERVICENOW INC | 3.70% | Reduce -1.0% | 1,770,901 | $858.89M | $485.00 | |
| 15 | LB | L BRANDS INC | 3.60% | - | 26,265,094 | $835.49M | No quote | No quote |
| 16 | ADBE | ADOBE SYSTEMS INCORPORATED | 3.57% | Reduce -7.1% | 1,689,613 | $828.64M | $490.43 | |
| 17 | COF | CAPITAL ONE FINL CORP | 3.18% | - | 10,278,292 | $738.6M | $71.86 | |
| 18 | ADSK | AUTODESK INC | 2.91% | Add +40.0% | 2,927,671 | $676.32M | $231.01 | |
| 19 | DDOG | DATADOG INC | 2.88% | Reduce -4.2% | 6,548,876 | $669.03M | $102.16 | |
| 20 | TEAM | ATLASSIAN CORP PLC | 2.58% | New | 3,289,546 | $598.01M | No quote | No quote |
| 21 | MA | MASTERCARD INCORPORATED | 2.57% | Reduce -20.0% | 1,763,571 | $596.39M | $338.17 | |
| 22 | STNE | STONECO LTD | 1.89% | New | 8,296,213 | $438.79M | No quote | No quote |
| 23 | TDG | TRANSDIGM GROUP INC | 1.54% | Reduce -56.9% | 754,410 | $358.44M | $475.12 | |
| 24 | NUAN | NUANCE COMMUNICATIONS INC | 1.21% | New | 8,480,618 | $281.47M | No quote | No quote |
| 25 | MELI | MERCADOLIBRE INC | 1.00% | New | 213,602 | $231.22M | $1082.48 | |
| 26 | BILL | BILL COM HLDGS INC | 0.96% | New | 2,216,266 | $222.31M | $100.31 | |
| 27 | DXCM | DEXCOM INC | 0.82% | Add +36.4% | 463,087 | $190.9M | $412.23 | |
| 28 | SNOW | SNOWFLAKE INC | 0.76% | New | 700,000 | $175.7M | $251.00 | |
| 29 | HWM | HOWMET AEROSPACE INC | 0.57% | - | 7,888,593 | $131.9M | $16.72 | |
| 30 | PODD | INSULET CORP | 0.47% | New | 462,209 | $109.35M | No quote | No quote |
| 31 | BKNG | BOOKING HOLDINGS INC | 0.43% | Reduce -90.1% | 58,920 | $100.79M | $1710.68 | |
| 32 | BEKE | KE HLDGS INC | 0.26% | New | 1,000,000 | $61.3M | $61.30 | |
| 40 | ZM | ZOOM VIDEO COMMUNICATIONS IN | - | Sold | 0 | $0 | No quote | No quote |
| 39 | V | VISA INC | - | Sold | 0 | $0 | No quote | No quote |
| 38 | CRM | SALESFORCE COM INC | - | Sold | 0 | $0 | No quote | No quote |
| 37 | MTCH | MATCH GROUP INC | - | Sold | 0 | $0 | No quote | No quote |
| 36 | DFS | DISCOVER FINL SVCS | - | Sold | 0 | $0 | No quote | No quote |
| 35 | CDAY | CERIDIAN HCM HLDG INC | - | Sold | 0 | $0 | No quote | No quote |
| 34 | CVNA | CARVANA CO | - | Sold | 0 | $0 | No quote | No quote |
| 33 | VXXB | BARCLAYS BK PLC | - | Sold | 0 | $0 | No quote | No quote |