LP
Lansdowne Partners 13F Holdings & Recent Stock Buys (Q2 2026)
Lansdowne PartnersCIK: 0001608485
Sector-focusedMomentum followerQuality / disciplined sizing
Total reported value
$2.4B
Reporting period: 2026-06-30 · Number of holdings: 67
LANSDOWNE PARTNERS disclosed 67 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $2.4B and a quarterly turnover rate of 56.1%.
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Personality snowflake
- Concentration
- 57.53
- Portfolio Stability
- 56.15
- Momentum
- 100
- Sector conviction
- 100
- Diversification
- 52
- Sizing Uniformity
- 83.12
Lansdowne Partners's disclosed holdings carry a Herfindahl concentration index of 0.144 — mathematically equivalent to about 7 equally-sized positions, well below its 67 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 1.69), with a handful of outsized bets alongside many smaller positions.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 4.6 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govAdd ARM
+14.6% $238.8M
Trim LIN
-46.9% -$98.9M
Add BKR
+6087.5% $136.0M
Trim TECK
-84.8% -$87.2M
Add TSM
+10.5% $253.4M
Trim SW
-81.4% -$58.4M
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
Showing top 26 holdings (of 67 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 29.00% | +4.81% | +10.49% | |
| 2 | ARM | Arm Holdings Plc-adr | Stock-Tech | 15.64% | +8.06% | +14.64% | |
| 3 | DAL | Delta Air Lines Inc | Stock-Industrials | 9.52% | +0.67% | -0.59% | |
| 4 | ADI | Analog Devices Inc | Stock-Tech | 9.39% | -1.93% | -13.48% | |
| 5 | UAL | United Airlines Holdings Inc | Stock-Industrials | 8.67% | +1.12% | +1.20% | |
| 6 | BKR | Baker Hughes Co | Stock-Energy | 5.69% | +5.56% | +6087.48% | |
| 7 | LIN | Linde plc | Stock-Materials | 5.09% | -6.84% | -46.88% | |
| 8 | SLB | Slb LTD | Stock-Energy | 4.90% | -3.24% | -13.44% | |
| 9 | GOLF | Acushnet Holdings CORP | Stock-Other | 2.50% | -0.12% | -1.79% | |
| 10 | IONQ | Ionq Inc | Stock-Tech | 2.12% | +0.89% | +21.47% | |
| 11 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 1.30% | +0.43% | +70.68% | |
| 12 | TXN | Texas Instruments Inc | Stock-Tech | 1.14% | +0.18% | +0.63% | |
| 13 | TECK | Teck Resources Ltd-cls B | Stock-Materials | 0.76% | -4.90% | -84.79% | |
| 14 | SW | Smurfit Westrock Plc | Stock-Consumer Disc | 0.66% | -3.33% | -81.40% | |
| 15 | B | Barrick Mining CORP | Stock-Materials | 0.62% | -0.13% | +19.78% | |
| 16 | RAL | Ralliant CORP | Stock-Tech | 0.60% | +0.17% | +1.42% | |
| 17 | ETN | Eaton Corporation plc | Stock-Industrials | 0.59% | -1.89% | -73.87% | |
| 18 | NVT | nVent Electric plc | Stock-Industrials | 0.50% | +0.50% | NEW | |
| 19 | A | Agilent Technologies Inc | Stock-Healthcare | 0.48% | +0.48% | NEW | |
| 20 | MDT | Medtronic plc | Stock-Healthcare | 0.29% | -0.12% | — | |
| 21 | ST | Sensata Technologies Holding plc | Stock-Tech | 0.28% | +0.28% | NEW | |
| 22 | ROK | Rockwell Automation Inc | Stock-Industrials | 0.19% | -0.08% | -34.94% | |
| 23 | AEM | Agnico Eagle Mines LTD | Stock-Materials | 0.03% | -0.02% | — | |
| 24 | MAR | Marriott International -cl A | Stock-Consumer Disc | 0.02% | — | -10.39% | |
| 25 | LAMR | Lamar Advertising Co-a | Stock-Real Estate | 0.01% | +0.01% | NEW | |
| 26 | OUT | Outfront Media Inc | Stock-Other | 0.01% | +0.01% | NEW |
* This report is exclusively curated by the AlphaSMO team. AlphaSMO is the web's most authoritative 13F / Inside Trader database, delivering precise insider trading and institutional holdings insights.
Portfolio Performance
Performance for Q3 2026
-6.4%
Performance Last 4 Quarters
+32.2%
- Stdev
- +21.4%
- Beta
- +1.35
- Alpha
- +0.7%
- Max Drawdown
- -16.2%
- Annualized Perf
- +28.6%
- Batting Avg vs S&P
- +55.6%
- Sortino
- +2.32
- Stutzer
- +0.37
- Treynor
- +0.21
- Sterling
- +1.37
- Calmar
- +1.77
- Information Ratio
- +0.58
- Tracking Error
- +13.2%
- Stdev Down
- +11.9%
- Winning Months %
- +69.4%
- Losing Months %
- +30.6%
- Best 12 Months
- +62%
- Worst 12 Months
- +1.5%
- Efficiency Ratio
- +0.59
- Sharpe
- +1.29
- Stdev Sectors
- +19.6%
- Skewness
- -0.3
- Kurtosis
- +0.07
- Upside Potential
- +3.82
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 67 | $2.4B | 56 | ||
| 2026 Q1 | 65 | $1.9B | 41 | ||
| 2025 Q4 | 71 | $1.4B | 45 | ||
| 2025 Q3 | 54 | $1.2B | 72 | ||
| 2025 Q2 | 51 | $769.9M | 0 | ||
| 2025 Q1 | 47 | $706.1M | 74 | ||
| 2024 Q4 | 57 | $1.4B | 26 | ||
| 2024 Q3 | 58 | $1.3B | 50 | ||
| 2024 Q2 | 62 | $1.3B | 29 | ||
| 2024 Q1 | 71 | $1.5B | 30 | ||
| 2023 Q4 | 74 | $1.4B | 100 | ||
| 2023 Q3 | 81 | $1.1B | 0 | ||
| 2023 Q2 | 55 | $902.2M | 0 | ||
| 2023 Q1 | 54 | $647.9M | 0 | ||
| 2022 Q4 | 42 | $482.7M | 0 | ||
| 2022 Q3 | 47 | $464.7M | 0 | ||
| 2022 Q2 | 59 | $708.9M | 0 | ||
| 2022 Q1 | 69 | $1.2B | 0 | ||
| 2021 Q4 | 65 | $1.7B | 0 | ||
| 2021 Q3 | 75 | $2.1B | 0 | ||
| 2021 Q2 | 102 | $2.5B | 100 | ||
| 2021 Q1 | 99 | $3.1B | 33 | ||
| 2020 Q4 | 113 | $3.1B | 41 | ||
| 2020 Q3 | 131 | $2.5B | 76 | ||
| 2020 Q2 | 120 | $2.4B | 74 | ||
| 2020 Q1 | 72 | $1.8B | 85 | ||
| 2019 Q4 | 96 | $3.7B | 30 | ||
| 2019 Q3 | 100 | $3.8B | 32 | ||
| 2019 Q2 | 97 | $4.1B | 46 | ||
| 2019 Q1 | 119 | $4.5B | 56 | ||
| 2018 Q4 | 130 | $6.8B | 56 | ||
| 2018 Q3 | 154 | $9.5B | 34 | ||
| 2018 Q2 | 163 | $10.5B | 31 | ||
| 2018 Q1 | 123 | $9.6B | 23 | ||
| 2017 Q4 | 134 | $10.9B | 29 | ||
| 2017 Q3 | 115 | $9.6B | 40 | ||
| 2017 Q2 | 130 | $11.5B | 29 | ||
| 2017 Q1 | 125 | $11.5B | 32 | ||
| 2016 Q4 | 123 | $11.2B | 26 | ||
| 2016 Q3 | 108 | $11.6B | 12 | ||
| 2016 Q2 | 112 | $10.7B | 34 | ||
| 2016 Q1 | 138 | $12.7B | 34 | ||
| 2015 Q4 | 154 | $14.6B | 32 | ||
| 2015 Q3 | 112 | $11.9B | 19 | ||
| 2015 Q2 | 117 | $11.7B | 17 | ||
| 2015 Q1 | 123 | $11.1B | 31 | ||
| 2014 Q4 | 114 | $11.1B | 31 | ||
| 2014 Q3 | 117 | $11.1B | 24 | ||
| 2014 Q2 | 114 | $10.6B | — |
Holding changes this quarter
Lansdowne Partners's most significant position changes for 2026-06-30: New buy: nVent Electric plc (NVT); New buy: Agilent Technologies Inc (A); Sold out: Alcon Inc. (ALC); New buy: Sensata Technologies Holding plc (ST); New buy: Lamar Advertising Co-a (LAMR).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | ARM | Arm Holdings Plc-adr | +8.1% | +14.64% | Add |
| 2 | BKR | Baker Hughes Co | +5.6% | +6087.48% | Add |
| 3 | TSM | Taiwan Semiconductor-sp Adr | +4.8% | +10.49% | Add |
| 4 | UAL | United Airlines Holdings Inc | +1.1% | +1.20% | Add |
| 5 | IONQ | Ionq Inc | +0.9% | +21.47% | Add |
| 6 | DAL | Delta Air Lines Inc | +0.7% | -0.59% | Trim |
| 7 | NVT | nVent Electric plc | +0.5% | NEW | New buy |
| 8 | A | Agilent Technologies Inc | +0.5% | NEW | New buy |
| 9 | AMZN | Amazon.com Inc | +0.4% | +70.68% | Add |
| 10 | ST | Sensata Technologies Holding plc | +0.3% | NEW | New buy |
| 11 | TXN | Texas Instruments Inc | +0.2% | +0.63% | Add |
| 12 | RAL | Ralliant CORP | +0.2% | +1.42% | Add |
| 13 | LAMR | Lamar Advertising Co-a | 0% | NEW | New buy |
| 14 | OUT | Outfront Media Inc | 0% | NEW | New buy |
| 15 | MAR | Marriott International -cl A | — | -10.39% | Trim |
| 16 | AEM | Agnico Eagle Mines LTD | 0% | — | Unchanged |
| 17 | ROK | Rockwell Automation Inc | -0.1% | -34.94% | Trim |
| 18 | GOLF | Acushnet Holdings CORP | -0.1% | -1.79% | Trim |
| 19 | MDT | Medtronic plc | -0.1% | — | Unchanged |
| 20 | B | Barrick Mining CORP | -0.1% | +19.78% | Add |
| 21 | ALC | Alcon Inc. | -0.5% | EXIT | Sold out |
| 22 | ETN | Eaton Corporation plc | -1.9% | -73.87% | Trim |
| 23 | ADI | Analog Devices Inc | -1.9% | -13.48% | Trim |
| 24 | SLB | Slb LTD | -3.2% | -13.44% | Trim |
| 25 | SW | Smurfit Westrock Plc | -3.3% | -81.40% | Trim |
| 26 | TECK | Teck Resources Ltd-cls B | -4.9% | -84.79% | Trim |
| 27 | LIN | Linde plc | -6.8% | -46.88% | Trim |
Filing History
FAQ
What is Lansdowne Partners and what type of investor is it?
Lansdowne Partners is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $2.4B, spread across 67 disclosed positions.
What are Lansdowne Partners's largest equity positions?
Based on the latest 13F filing, Lansdowne Partners's top holdings by market value are:
1. Taiwan Semiconductor-sp Adr (TSM) — $704.8M (29.0%)
2. Arm Holdings Plc-adr (ARM) — $380.3M (15.6%)
3. Delta Air Lines Inc (DAL) — $231.5M (9.5%)
4. Analog Devices Inc (ADI) — $228.2M (9.4%)
5. United Airlines Holdings Inc (UAL) — $210.7M (8.7%)
What changes did Lansdowne Partners make in its most recent portfolio filing?
In the latest reported quarter, Lansdowne Partners made 25 notable position adjustments: 5 new positions were initiated, 9 existing holdings were added to, 10 positions were partially reduced, and 1 were completely exited. The largest of these moves: New buy: nVent Electric plc (NVT); New buy: Agilent Technologies Inc (A); Sold out: Alcon Inc. (ALC); New buy: Sensata Technologies Holding plc (ST); New buy: Lamar Advertising Co-a (LAMR)
What sectors does Lansdowne Partners focus on?
Lansdowne Partners is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 59.7%
• Industrials: 20.0%
• Energy: 10.9%
• Materials: 6.7%
• Consumer Discretionary: 2.0%
• Health Care: 0.8%
Investment Profile
Lansdowne Partners returned an annualized 28.6% over the trailing 36 months — outperforming the S&P 500 by 0.7 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.35 (more volatile than the market) and a 56% quarterly batting average against the index.
Its portfolio is moderately concentrated and fast-trading, with 59.7% of the portfolio concentrated in Information Technology.
Its turnover score has risen from 0 to 56 over the past 4 quarters — a shift toward more active trading.
It has added to its ARM position over the past two quarters (+$328.7M, now $380.3M), while trimming ROK over the same stretch (-$7.6M, still holding $4.5M).
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Developer Access
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