About Steve Mandel

# Steve Mandel / Lone Pine Capital

Steve Mandel serves as portfolio manager at Lone Pine Capital, a multi-strategy investment firm. As of the Q2 2026 filing submitted August 14, 2026, Mandel's disclosed portfolio contained 34 positions valued at $16.4 billion. The portfolio demonstrates moderate breadth relative to total assets under management, with positions ranging across multiple market capitalizations and geographies.

Mandel's top five holdings represent 31.0% of portfolio value and are concentrated in technology and consumer discretionary equities. Nebius Group N.V. anchors the portfolio at 7.2% of assets, followed by ASML Holding N.V. at 6.9%, Seagate Technology Holdings at 5.9%, Home Depot Inc. at 5.6%, and Applied Materials Inc. at 5.3%. The portfolio's largest sector classification is listed as Unclassified, representing 76.9% of total holdings—reflecting either unlabeled positions or securities outside standard sector taxonomies. This concentration pattern is consistent with a sector rotator investment approach.

Quarter-over-quarter activity in Q2 2026 reflects material portfolio repositioning. Mandel disclosed 13 new position initiations, 15 complete exits, 8 position increases, and 13 position reductions during the period. This level of turnover is consistent with an active trading strategy and indicates significant changes to the portfolio composition relative to the prior quarter. The combination of new entries and exits alongside sizing adjustments in existing positions reflects ongoing capital reallocation.

All data sourced from SEC 13F filings.

Frequently asked questions

What stocks does Steve Mandel own?
As of the Q2 2026 13F filing, Steve Mandel disclosed 34 positions. The largest holdings include NBIS (7.2%), ASML (6.9%), STX (5.9%).
What is Steve Mandel's largest holding?
NBIS (NEBIUS GROUP N.V.), representing 7.2% of the disclosed portfolio.
What sectors is Steve Mandel exposed to?
The portfolio's largest sector exposures are Unclassified (76.9%), Consumer Discretionary (9.8%), Information Technology (6.9%). 7 sectors are represented in total.
How concentrated is Steve Mandel's portfolio?
The top 5 holdings represent 31.0% of total portfolio value.
When did Steve Mandel last file a 13F?
Steve Mandel filed the most recent Form 13F-HR for the period ending 2026-06-30, dated Aug 14, 2026.
What changed in Steve Mandel's portfolio last quarter?
Quarter-over-quarter changes: 13 new positions, 15 exits, 8 increased, 13 reduced.
SM

Steve Mandel

Lone Pine Capital · Long/short growth

Sign in to save13F data may be delayed up to 45 days
Latest filingQ2 2026· filed Aug 14, 2026· report period Jun 30, 2026
View on SEC EDGAR ↗
For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.
Portfolio Value
$16.4B
Holdings
34
Turnover (LTM)
66%
Persistence (QoQ)
60%
First 13F
Q3 2024
View Full Profile

Investor Fingerprint

i

Steve Mandel

v1 · 4-axis
31Concentration4Sizing66Turnover60Persistence
LowHigh

Descriptive snapshot computed from this investor's most recent public 13F filing dated 2026-06-30. Educational research, not investment advice.

  • Concentration: 31 (Above Avg.)
  • Sizing: 4 (Low)
  • Turnover: 66 (High)
  • Persistence: 60 (High)

Portfolio DNA

Categorical breakdown from this investor's 13F. Hover any row for the formula.

  • Diversified
    Moderate
  • Even Weights
    Moderate
  • Single-Sector Bet
    Very High
  • High Turnover
    Very High
  • Mostly Stable
    High
  • Minimal Tech
    Moderate

Six descriptive labels derived from public 13F data. Additional axes (Value, Quality, Growth, Dividends) require fundamentals data and ship in v2.

31%
Concentration
Top 5 Holdings · 31%
Diversified
Investor Style
Sector Rotator

Bets on sectors more than specific names; rotates as themes shift.

Fingerprint SummaryAI-generated · educational research only

Mandel's portfolio is characterized by moderate diversification across 34 holdings with a top-5 concentration of 31%, paired with high portfolio turnover of 65.8% over the last twelve months, indicating active rebalancing. The investor demonstrates a pronounced sector tilt of 60.9 while maintaining relatively balanced position sizing, with approximately 60% of positions persisting quarter-to-quarter despite the elevated trading activity. AI and technology exposure remains minimal at 8, suggesting a broad-based approach across sectors rather than concentration in high-growth technology names.

AI-generated analysis. This summary is produced by an automated language model from public regulatory filings. It may contain errors, omissions, or outdated information, and is provided for educational research only — not as financial, legal, or tax advice, a recommendation, or a solicitation to buy or sell any security.

Investor Macro Outlook™

i

Portfolio-positioning signal · 2026-Q2 · based on public filings

ConfidenceModerate (53%)
Inflationi
Bearish
Dollari
Neutral
GDPi
Expanding
Employmenti
Stable
Ratesi
Neutral
Energyi
Bearish
Technologyi
Underweight
Fixed Incomei
Minimal
Growth vs Valuei
Growth tilt
← Pure ValuePure Growth →

Steve Mandel's portfolio shows limited technology sector allocation. with minimal allocation to inflation-sensitive sectors. The overall sector mix is pro-cyclical, with heavier weight in economically sensitive industries. The portfolio shows a growth-oriented tilt (implied growth score: 66/100).

Macro Trend — last 3 quarters

2025-Q42026-Q12026-Q2
Inflation
Bearish
Bearish
Bearish
GDP
Expanding
Expanding
Expanding
Rates
Neutral
Neutral
Neutral
Energy
Bearish
Bearish
Bearish
Technology
Bullish
Neutral
Low
Growth / Value
Growth
Growth
Growth

This analysis is inferred from public filing data and portfolio positioning. It is for informational purposes only and is not financial advice. Scores represent implied macro views based on sector weights and quarter-over-quarter changes in public 13F disclosures — not predictions, buy/sell signals, or guaranteed forecasts.

Investor Inflation & Dollar Outlook™

Portfolio-positioning signal · based on public 13F filings · not investment advice

ConfidenceModerate (64%)

Inflation

65/100

Rising Inflation Bias
← FallingNeutralRising →

Key moves: LIN

U.S. Dollar

55/100

Neutral Dollar Bias
← StrongNeutralWeak →

Key moves: LIN

Recent portfolio changes show increased exposure to inflation-sensitive assets including LIN. Holdings in energy, commodities, and real assets as a group reflect positioning that has historically corresponded with elevated inflation environments. Dollar-sensitive positioning is broadly balanced, without a strong directional tilt toward either dollar-strength or dollar-weakness assets based on current observable holdings. This analysis is based on public 13F filing data and observable portfolio positioning only. It is for informational purposes only and should not be considered investment advice.

This analysis is based on public filings and portfolio positioning. It is for informational purposes only and should not be considered investment advice. Scores represent implied views inferred from observable 13F sector weights and quarter-over-quarter changes only — not predictions or guaranteed forecasts.

Portfolio Analytics™

Based on latest 13F
54
/100
Concentration Score™
Concentrated
Top 5 → 31%
Top 10 → 54%
Largest Position
NBIS
NEBIUS GROUP N.V.
7.2%of portfolio
$1.2B market value
Conviction Holdings
Positions > 5% of portfolio
6
  • NBIS7.2%
  • ASML6.9%
  • STX5.9%
  • HD5.6%
  • 382221055.3%
  • +1 more

Top 10 Holdings

#Stock% PortfolioCumulative
1
NBIS
NEBIUS GROUP N.V.
7.2%7.2%
2
ASML
ASML HLDG NV
6.9%14.1%
3
STX
SEAGATE TECHNOLOGY HLDNGS PL
5.9%20.0%
4
HD
HOME DEPOT INC
5.6%25.6%
5
38222105
APPLIED MATLS INC
5.3%31.0%
6
MDLN
MEDLINE INC
5.1%36.0%
7
LIN
LINDE PLC
4.9%41.0%
8
TER
TERADYNE INC
4.4%45.4%
9
GLW
CORNING INC
4.3%49.6%
10
CVNA
CARVANA CO
4.2%53.9%

Sector Allocation

Sectors7
  • Unclassified76.9%
  • Consumer Discretionary9.8%
  • Information Technology6.9%
  • Materials4.9%
  • Communication Services0.8%
  • Financial Services0.3%
  • Industrials0.2%
Unclassified76.9%
Consumer Discretionary9.8%
Information Technology6.9%
Materials4.9%
Communication Services0.8%
Financial Services0.3%

+1 more sectors

Portfolio Risk Profile

Elevated
Structure of disclosed 13F positions — not a prediction of returns
57/100

Weighted across dimensions with sufficient data

Concentration

Moderate
38/100
  • ·Top position NBIS is 7.2% of the portfolio
  • ·Top 10 holdings account for 53.9% of value
  • ·34 total positions (HHI 0.044)

Sector exposure

No data yet
N/A
  • ·Only 22.9% of portfolio value has a sector classification
  • ·Not enough classified holdings to score sector clustering — needs sector backfill

Turnover

High
100/100
  • ·49.9% of portfolio value rotated quarter-over-quarter
  • ·13 new positions, 15 full exits

Largest sector weights

Unclassified 76.9%Consumer Discretionary 9.8%Information Technology 6.9%Materials 4.9%Communication Services 0.8%Financial Services 0.3%
AI risk read

The portfolio exhibits elevated structural concentration, with the top 10 holdings representing 53.9% of disclosed equity positions across 34 total holdings. Turnover is notably high at 49.9% quarter-over-quarter value churn, marked by 13 new entries and 15 exits, indicating substantial portfolio rotation within the period.

Derived solely from Steve Mandel's public 13F filings, which disclose long US equity positions only — shorts, options hedges, cash, and non-US holdings are not included. Educational research only, not financial advice.

About

Founder of Lone Pine Capital. Another Tiger Cub. Long-tenured long/short equity manager focused on high-quality compounders.

AI filing intelligenceEducational research only — not financial advice

Lone Pine Capital initiated four significant new positions in Q2 2026, adding approximately $3.8 billion in combined exposure to Nebius Group (NBIS), Seagate Technology (STX), Home Depot (HD), and Applied Materials (AMAT), while exiting its energy sector position in Vistra (VST) worth $930 million. The fund trimmed semiconductor and materials exposure by reducing positions in ASML, Teradyne (TER), Carpenter Technology (CRS), and Corning (GLW), though ASML remained a top holding at $1.1 billion. Existing positions in Medline (MDLN) and Carvana (CVNA) were substantially increased, with CVNA posting a 500% gain and MDLN expanding by 78%. The activity reflects a portfolio rotation toward infrastructure, healthcare, and data center-related technology while de-risking from certain industrial and semiconductor names. Because 13F filings are delayed by up to 45 days, this should not be treated as real-time investment advice. Always do your own research.

AI-generated analysis. This summary is produced by an automated language model from public regulatory filings. It may contain errors, omissions, or outdated information, and is provided for educational research only — not as financial, legal, or tax advice, a recommendation, or a solicitation to buy or sell any security.

Top 10 holdings

  • NBISNEBIUS GROUP N.V.
    $1.2B7.2%
  • ASMLASML HLDG NV
    $1.1B6.9%
  • STXSEAGATE TECHNOLOGY HLDNGS PL
    $965.1M5.9%
  • HDHOME DEPOT INC
    $918.1M5.6%
  • 38222105APPLIED MATLS INC
    $873.2M5.3%
  • MDLNMEDLINE INC
    $827M5.1%
  • LINLINDE PLC
    $808.6M4.9%
  • TERTERADYNE INC
    $722.4M4.4%
  • GLWCORNING INC
    $696.8M4.3%
  • CVNACARVANA CO
    $692.5M4.2%

Sector exposure

Sectors7
  • Unclassified76.9%
  • Consumer Discretionary9.8%
  • Information Technology6.9%
  • Materials4.9%
  • Communication Services0.8%
  • Financial Services0.3%
  • Industrials0.2%

New positions

13
  • 38222105APPLIED MATLS INC
    New
  • BTDRBITDEER TECHNOLOGIES GROUP
    New
  • HDHOME DEPOT INC
    New
  • IBKRINTERACTIVE BROKERS GROUP IN
    New
  • KGSKODIAK GAS SVCS INC
    New
  • LINLINDE PLC
    New
Why this matters
Why a new position matters

Opening a new position can suggest the manager sees value or a thesis worth committing capital to. It does not necessarily mean they are bullish on the broader market — concentrated managers add positions infrequently while quants may rotate constantly.

Educational research only. Not financial advice.

Increased

8
  • CVNACARVANA CO
    Increased
  • GOOGLALPHABET INC
    Increased
  • MDLNMEDLINE INC
    Increased
  • NUNU HLDGS LTD
    Increased
  • PFGCPERFORMANCE FOOD GROUP CO
    Increased
  • USFDUS FOODS HLDG CORP
    Increased
Why this matters
Why an increase matters

Adding to an existing position may indicate higher conviction, scaling into a thesis, or rebalancing toward a target weight. It does not necessarily mean the position is undervalued at the current price.

Educational research only. Not financial advice.

Reduced

13
  • AGXARGAN INC
    Reduced
  • APPAPPLOVIN CORP
    Reduced
  • ASMLASML HLDG NV
    Reduced
  • BNBROOKFIELD CORP
    Reduced
  • CRSCARPENTER TECHNOLOGY CORP
    Reduced
  • GLWCORNING INC
    Reduced
Why this matters
Why a reduction matters

Trimming a position may suggest portfolio rebalancing, profit-taking, or risk management. It does not necessarily mean the manager has turned bearish on the underlying company.

Educational research only. Not financial advice.

Sold out

15
  • Ticker unavailableCUSIP 929160109VULCAN MATLS CO
    Sold
  • APHAMPHENOL CORP
    Sold
  • BKNGBOOKING HOLDINGS INC
    Sold
  • BSXBOSTON SCIENTIFIC CORP
    Sold
  • CIENCIENA CORP
    Sold
  • CLHCLEAN HARBORS INC
    Sold
Why this matters
Why a full exit matters

Fully exiting a position can suggest that the manager's thesis has played out, was wrong, or that capital is being redeployed elsewhere. It does not mean the company is broken — exits are often as much about portfolio fit as about the security itself.

Educational research only. Not financial advice.

Current holdings

Reported portfolio value: $16.4B

Reported values come from public SEC filings and may be delayed up to 45 days. Not investment advice.

Sourced from SEC EDGAR public filings

  • NBISNew
    NEBIUS GROUP N.V.
    Position value
    $1.2B
    Portfolio %
    7.19%
    Delta Shares
  • ASMLReduced
    ASML HLDG NV
    Position value
    $1.1B
    Portfolio %
    6.92%
    Delta Shares
    -13.12%
  • STXNew
    SEAGATE TECHNOLOGY HLDNGS PL
    Position value
    $965.1M
    Portfolio %
    5.90%
    Delta Shares
  • HDNew
    HOME DEPOT INC
    Position value
    $918.1M
    Portfolio %
    5.61%
    Delta Shares
  • APPLIED MATLS INC
    Position value
    $873.2M
    Portfolio %
    5.34%
    Delta Shares
  • MDLNIncreased
    MEDLINE INC
    Position value
    $827M
    Portfolio %
    5.06%
    Delta Shares
    77.86%
  • LINNew
    LINDE PLC
    Position value
    $808.6M
    Portfolio %
    4.94%
    Delta Shares
  • TERReduced
    TERADYNE INC
    Position value
    $722.4M
    Portfolio %
    4.42%
    Delta Shares
    -20.28%
  • GLWReduced
    CORNING INC
    Position value
    $696.8M
    Portfolio %
    4.26%
    Delta Shares
    -26.63%
  • CVNAIncreased
    CARVANA CO
    Position value
    $692.5M
    Portfolio %
    4.23%
    Delta Shares
    499.57%
  • HUTReduced
    HUT 8 CORP
    Position value
    $666.5M
    Portfolio %
    4.07%
    Delta Shares
    -5.03%
  • PFGCIncreased
    PERFORMANCE FOOD GROUP CO
    Position value
    $654.3M
    Portfolio %
    4.00%
    Delta Shares
    47.12%
  • NUIncreased
    NU HLDGS LTD
    Position value
    $630.9M
    Portfolio %
    3.86%
    Delta Shares
    24.23%
  • WULFIncreased
    TERAWULF INC
    Position value
    $596.4M
    Portfolio %
    3.65%
    Delta Shares
    21.20%
  • CRSReduced
    CARPENTER TECHNOLOGY CORP
    Position value
    $593.9M
    Portfolio %
    3.63%
    Delta Shares
    -47.04%
  • MTZReduced
    MASTEC INC
    Position value
    $559.7M
    Portfolio %
    3.42%
    Delta Shares
    -12.14%
  • APPReduced
    APPLOVIN CORP
    Position value
    $537M
    Portfolio %
    3.28%
    Delta Shares
    -28.85%
  • TTMINew
    TTM TECHNOLOGIES INC
    Position value
    $512.1M
    Portfolio %
    3.13%
    Delta Shares
  • STRLNew
    STERLING INFRASTRUCTURE INC
    Position value
    $511.7M
    Portfolio %
    3.13%
    Delta Shares
  • USFDIncreased
    US FOODS HLDG CORP
    Position value
    $502.5M
    Portfolio %
    3.07%
    Delta Shares
    29.47%
  • ONONNew
    ON HLDG AG
    Position value
    $470.4M
    Portfolio %
    2.88%
    Delta Shares
  • LPLAReduced
    LPL FINL HLDGS INC
    Position value
    $343.4M
    Portfolio %
    2.10%
    Delta Shares
    -40.53%
  • AGXReduced
    ARGAN INC
    Position value
    $294.4M
    Portfolio %
    1.80%
    Delta Shares
    -6.22%
  • BTDRNew
    BITDEER TECHNOLOGIES GROUP
    Position value
    $111.4M
    Portfolio %
    0.68%
    Delta Shares
  • SHAZNew
    SHARONAI HOLDINGS INC
    Position value
    $102.4M
    Portfolio %
    0.63%
    Delta Shares
  • GOOGLIncreased
    ALPHABET INC
    Position value
    $77M
    Portfolio %
    0.47%
    Delta Shares
    14.94%
  • KGSNew
    KODIAK GAS SVCS INC
    Position value
    $63.5M
    Portfolio %
    0.39%
    Delta Shares
  • VIncreased
    VISA INC
    Position value
    $56.9M
    Portfolio %
    0.35%
    Delta Shares
    78.88%
  • IBKRNew
    INTERACTIVE BROKERS GROUP IN
    Position value
    $50.3M
    Portfolio %
    0.31%
    Delta Shares
  • TSMReduced
    TAIWAN SEMICONDUCTOR MANUFAC
    Position value
    $48.4M
    Portfolio %
    0.30%
    Delta Shares
    -92.71%
  • SENew
    SEA LTD
    Position value
    $47.4M
    Portfolio %
    0.29%
    Delta Shares
  • MCKReduced
    MCKESSON CORP
    Position value
    $43.7M
    Portfolio %
    0.27%
    Delta Shares
    -85.25%
  • TDGReduced
    TRANSDIGM GROUP INC
    Position value
    $38M
    Portfolio %
    0.23%
    Delta Shares
    -20.03%
  • BNReduced
    BROOKFIELD CORP
    Position value
    $33.8M
    Portfolio %
    0.21%
    Delta Shares
    -92.93%
  • Ticker unavailableCUSIP 929160109Sold
    VULCAN MATLS CO
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • APHSold
    AMPHENOL CORP
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • BKNGSold
    BOOKING HOLDINGS INC
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • BSXSold
    BOSTON SCIENTIFIC CORP
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • CIENSold
    CIENA CORP
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • CLHSold
    CLEAN HARBORS INC
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • COFSold
    CAPITAL ONE FINL CORP
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • ENTGSold
    ENTEGRIS INC
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • HLTSold
    HILTON WORLDWIDE HLDGS INC
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • KKRSold
    KKR & CO INC
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • MASold
    MASTERCARD INCORPORATED
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • SPOTSold
    SPOTIFY TECHNOLOGY S A
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • THCSold
    TENET HEALTHCARE CORP
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • TLNSold
    TALEN ENERGY CORP
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%
  • VSTSold
    VISTRA CORP
    Position value
    $0
    Portfolio %
    0.00%
    Delta Shares
    -100.00%

Sector breakdown

  • Unclassified76.9%
  • Consumer Discretionary9.8%
  • Information Technology6.9%
  • Materials4.9%
  • Communication Services0.8%
  • Financial Services0.3%
  • Industrials0.2%

Filing history