Super investor portfolio

Stephen Mandel portfolio

Latest holdings of Lone Pine Capital as of Q2 2026: 34 positions worth $16.4B, decoded into plain English.

GrowthLong/shortFundamental
Lone Pine Capital · Greenwich, Connecticut · since 1997
SEC 13F · period Q2 2026 · filed 14 Aug 2026 · View filing5-min briefing
Top 5 holdingsQ2 2026
  • 1NBISNebius7.2%
  • 2ASMLASML6.9%
  • 3STXSeagate Technology5.9%
  • 4HDHome Depot5.6%
  • 5AMATApplied Materials5.3%

Portfolio summary and charts

The 30-second read
30 sec
  • Nebius (NBIS) is the largest position at 7.2% of a $16.4B portfolio.
  • Biggest buy: opened a new position in Nebius, about $1.2B of new money.
  • Biggest sale: sold out of Vistra, about $930M.
  • Moderate conviction: the top 10 holdings make up 54%, and the portfolio behaves like 23 equal-sized bets.
Portfolio value
$16.4B
+30.4% vs Q1 2026
Positions
34
13 new · 15 sold out
Top-10 weight
54%
Moderate conviction
Behaves like
23 bets
Effective number of positions
Turnover
47%
Portfolio traded this quarter
01 · Holdings map

Every box is a position, sized by its weight

NewAddedTrimmedUnchanged

What this meansNebius alone is 7% of the portfolio, and the top three make up 20%. Colors show what changed since last quarter, so you can spot fresh conviction at a glance.

02 · Sector allocation

Where the money is

Technology 30%Materials 16%Industrials 16%Financials 15%Consumer Discretionary 10%Consumer Staples 7%Health Care 5%Communication 0%Other positions 1%

What this meansTechnology is the biggest slice at 30% of the portfolio.

03 · Concentration curve

How focused is the portfolio?

Stephen MandelEqual-weight benchmark

What this meansThe steeper the gold curve rises above the dashed line, the more the portfolio depends on a few big bets. It behaves like 23 equal-sized positions.

04 · Quarter activityQ1 2026 → Q2 2026

Biggest buys and sells

Bought / addedSold / trimmed

What this meansThe largest move was opening Nebius, worth about $1.2B. Values are estimated at quarter-end prices.

05 · Portfolio valueQ2 2024 → Q2 2026

Two years of reported value

What this meansValue changes with both market prices and new money in or out. It moved from $12.3B to $16.4B over 9 quarters.

06 · Position historyShare of portfolio by quarter

How today’s top positions grew over time

NBISASMLSTXHDAMATMDLNEverything else

What this meansWide, steady bands are long-term core holdings; bands that appear suddenly are recent bets.

07 · Holdings

All 34 positions

Click a column to sort
Stephen Mandel 13F holdings for Q2 2026
#StockSector% of portfolioActivitySharesValue
1NBIS
Nebius
Technology7.19%New4,258,008$1.2B
2ASML
ASML
Industrials6.92%Trimmed −13%569,174$1.1B
3STX
Seagate Technology
Technology5.90%New1,000,109$965M
4HD
Home Depot
Consumer Discretionary5.61%New2,603,189$918M
5AMAT
Applied Materials
Technology5.34%New1,207,737$873M
6MDLN
Medline
Health Care5.06%Added +78%20,968,367$827M
7LIN
Linde
Materials4.94%New1,558,081$809M
8TER
Teradyne
Technology4.42%Trimmed −20%1,493,080$722M
9GLW
Corning
Materials4.26%Trimmed −27%2,728,058$697M
10CVNA
Carvana
Consumer Discretionary4.23%Added +500%10,520,666$692M
11HUT
Hut 8
Financials4.07%Trimmed −5%5,773,045$666M
12PFGC
Performance Food
Consumer Staples4.00%Added +47%5,852,740$654M
13NU
Nu
Financials3.86%Added +24%47,219,717$631M
14WULF
Terawulf
Financials3.65%Added +21%24,144,625$596M
15CRS
Carpenter Technology
Materials3.63%Trimmed −47%962,839$594M
16MTZ
Mastec
Industrials3.42%Trimmed −12%1,345,157$560M
17APP
AppLovin
Technology3.28%Trimmed −29%1,042,268$537M
18TTMI
Ttm Technologies
Technology3.13%New2,738,075$512M
19STRL
Sterling Infrastructure
Industrials3.13%New609,643$512M
20USFD
US Foods
Consumer Staples3.07%Added +29%4,914,492$503M
21ONON
On
Materials2.88%New13,280,030$470M
22LPLA
LPL Financial
Financials2.10%Trimmed −41%1,219,099$343M
23AGX
Argan
Industrials1.80%Trimmed −6%368,673$294M
24BTDR
Bitdeer Technologies
Financials0.68%New7,020,026$111M
25SHAZ
SharonAI
Technology0.63%New1,209,848$102M
26GOOGL
Alphabet (Class A)
Communication0.47%Added +15%215,574$77M
27KGS
Kodiak Gas Services
Energy0.39%New845,070$63M
28V
Visa
Financials0.35%Added +79%165,960$57M
29IBKR
Interactive Brokers
Financials0.31%New577,666$50M
30TSM
Taiwan Semiconductor Manufacturing
Technology0.30%Trimmed −93%101,242$48M
31SE
Sea
Consumer Discretionary0.29%New494,581$47M
32MCK
Mckesson
Health Care0.27%Trimmed −85%57,851$44M
33TDG
TransDigm
Industrials0.23%Trimmed −20%28,532$38M
34BN
Brookfield
Real Estate0.21%Trimmed −93%792,717$34M

Values as reported at quarter end (30 Jun 2026). Activity compares share counts with the Q1 2026 filing. Source: SEC filing 0000919574-26-005485 · all filings on EDGAR.

08 · Sold out this quarter

Positions closed

  • VSTVistra$930M at Q1 2026
  • TLNTalen Energy$580M at Q1 2026
  • CLHClean Harbors$503M at Q1 2026
  • THCTenet Healthcare$426M at Q1 2026
  • COFCapital One Financial$414M at Q1 2026
  • ENTGEntegris$365M at Q1 2026
  • CIENCiena$314M at Q1 2026
  • VMCVulcan Materials$39M at Q1 2026
  • SPOTSpotify Technology$33M at Q1 2026
  • MAMastercard$29M at Q1 2026
  • APHAmphenol$28M at Q1 2026
  • HLTHilton Worldwide$27M at Q1 2026
09 · About the investor

Stephen Mandel

Stephen Mandel, another Tiger Cub, founded Lone Pine in 1997 and later stepped back from day-to-day management, which passed to a new generation of portfolio managers. The firm is known for high-turnover, research-driven growth investing.

Philosophy in brief
  • Find businesses whose growth the market underestimates.
  • Do intense, bottom-up research on management and competition.
  • Rotate quickly when the thesis changes.
How to read this page
The 13F shows US-listed long positions at quarter end, filed up to 45 days later. It does not show short positions, cash, bonds (except convertibles) or most non-US holdings, so treat it as one view of the strategy, not the whole picture.
10 · Other smart moneyPoliticians and insiders

Who else is trading these holdings

  • 01NBIS Nebius1 congressional trade disclosed (1 buys)7.2% of portfolio
  • 02ASML ASML7 congressional trades disclosed (6 buys)6.9% of portfolio
  • 03STX Seagate Technology3 congressional trades disclosed (1 buys)5.9% of portfolio
  • 04HD Home Depot28 congressional trades disclosed (12 buys)5.6% of portfolio
  • 05AMAT Applied Materials10 congressional trades disclosed (7 buys)5.3% of portfolio
  • 07LIN Linde6 congressional trades disclosed (2 buys) · insiders bought $48K in Q3 20264.9% of portfolio
  • 08TER Teradyne2 congressional trades disclosed (1 buys)4.4% of portfolio
  • 09GLW Corning9 congressional trades disclosed (5 buys)4.3% of portfolio
11 · Similar portfolios

Investors who think alike

Cosine similarity of position weights (100 = identical portfolios). Chips show the biggest shared holdings.

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