CI
Castlefield Investment Partners LLP SEC 13F Filing (Q2 2026) — Holdings & Portfolio
Castlefield Investment Partners LLPCIK: 0002109835
ContrarianQuality / disciplined sizingDiversified strategy
Total reported value
$147.3M
Reporting period: 2026-06-30 · Number of holdings: 35
Castlefield Investment Partners LLP disclosed 35 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $147.3M and a quarterly turnover rate of 19.7%.
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Personality snowflake
- Concentration
- 18.27
- Portfolio Stability
- 19.68
- Momentum
- 0
- Sector conviction
- 62.61
- Diversification
- 70
- Sizing Uniformity
- 92.15
Castlefield Investment Partners LLP's disclosed holdings carry a Herfindahl concentration index of 0.046 — mathematically equivalent to about 22 equally-sized positions, close to its 35 actual disclosed holdings. Value is spread relatively evenly across the portfolio rather than concentrated in a handful of names.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.79), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govNew buy MU
Add KLAC
+930.5% $6.0M
Trim NFLX
+2.4% -$1.2M
Trim TMUS
+2.5% -$912.9K
Trim BSX
+5.7% -$951.0K
Trim MSFT
-5.5% -$359.3K
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | NVDA | Nvidia CORP | Stock-Tech | 8.44% | +0.33% | +2.12% | |
| 2 | KLAC | Kla CORP | Stock-Tech | 7.69% | +3.59% | +930.49% | |
| 3 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 7.61% | +0.35% | -5.05% | |
| 4 | AAPL | Apple Inc | Stock-Tech | 6.72% | -0.14% | -3.30% | |
| 5 | MSFT | Microsoft CORP | Stock-Tech | 4.85% | -0.88% | -5.52% | |
| 6 | V | Visa Inc-class A Shares | Stock-Financials | 4.56% | +0.27% | +5.48% | |
| 7 | MU | Micron Technology Inc | Stock-Tech | 4.20% | +4.20% | NEW | |
| 8 | DE | Deere & Co | Stock-Industrials | 4.00% | -0.15% | -3.65% | |
| 9 | MCO | Moody's CORP | Stock-Financials | 3.91% | -0.04% | +7.44% | |
| 10 | CB | Chubb Limited | Stock-Financials | 3.89% | -0.17% | +3.18% | |
| 11 | MRK | Merck & Co. Inc. | Stock-Healthcare | 3.65% | -0.37% | -4.34% | |
| 12 | HASI | Ha Sustainable Infrastructur | Stock-Financials | 3.33% | -0.15% | +1.59% | |
| 13 | NDAQ | Nasdaq Inc | Stock-Financials | 3.05% | -0.62% | +0.82% | |
| 14 | SHOP | Shopify Inc - Class A | Stock-Tech | 2.84% | -0.40% | +2.07% | |
| 15 | TMUS | T-mobile US Inc | Stock-Comm Services | 2.80% | -1.04% | +2.49% | |
| 16 | AWK | American Water Works Co Inc | Stock-Utilities | 2.71% | -0.38% | +2.03% | |
| 17 | SNA | Snap-on Inc | Stock-Industrials | 2.62% | +0.07% | +4.07% | |
| 18 | SCI | Service CORP International | Stock-Consumer Disc | 2.59% | -0.80% | -6.60% | |
| 19 | MELI | Mercadolibre Inc | Stock-Consumer Disc | 2.57% | -0.29% | +3.24% | |
| 20 | NFLX | Netflix Inc | Stock-Comm Services | 2.57% | -1.23% | +2.39% | |
| 21 | PG | Procter & Gamble Co/the | Stock-Consumer Staples | 2.50% | -0.41% | -4.87% | |
| 22 | LOW | Lowe's Cos Inc | Stock-Consumer Disc | 2.43% | -0.61% | -3.50% | |
| 23 | TMO | Thermo Fisher Scientific Inc | Stock-Healthcare | 2.41% | -0.37% | -4.28% | |
| 24 | HDB | Hdfc Bank Ltd-adr | Stock-Financials | 2.37% | -0.15% | +2.26% | |
| 25 | LEN | Lennar Corp-a | Stock-Consumer Disc | 2.10% | -0.11% | +2.34% | |
| 26 | BSX | Boston Scientific CORP | Stock-Healthcare | 1.65% | -0.93% | +5.66% | |
| 27 | IQV | Iqvia Holdings Inc | Stock-Healthcare | 0.41% | +0.23% | +119.32% | |
| 28 | WAT | Waters CORP | Stock-Healthcare | 0.40% | +0.23% | +107.62% | |
| 29 | RSG | Republic Services Inc | Stock-Industrials | 0.35% | +0.17% | +124.93% | |
| 30 | URI | United Rentals Inc | Stock-Industrials | 0.31% | +0.18% | +74.36% | |
| 31 | CRM | Salesforce Inc | Stock-Tech | 0.20% | -0.02% | +21.71% | |
| 32 | INTC | Intel CORP | Stock-Tech | 0.14% | -0.21% | -85.20% | |
| 33 | INTU | Intuit Inc | Stock-Tech | 0.13% | -0.06% | +27.94% | |
| 34 | STE | STERIS plc | Stock-Healthcare | 0.02% | — | — | |
| 35 | ✓ | Liberty Latin America LTD | Stock-Other | — | — | — |
Portfolio Performance
Performance for Q3 2026
+6.7%
Performance Last 4 Quarters
+7%
- Stdev
- +16.6%
- Beta
- +0.7
- Alpha
- -2.5%
- Max Drawdown
- -1.9%
- Annualized Perf
- +14.5%
- Batting Avg vs S&P
- +33.3%
- Sortino
- +1.61
- Stutzer
- +0.28
- Treynor
- +0.21
- Sterling
- —
- Calmar
- +7.62
- Information Ratio
- -0.84
- Tracking Error
- +11.7%
- Stdev Down
- +9.1%
- Winning Months %
- +66.7%
- Losing Months %
- +33.3%
- Best 12 Months
- —
- Worst 12 Months
- —
- Efficiency Ratio
- +0.3
- Sharpe
- +0.89
- Stdev Sectors
- +10.2%
- Skewness
- -0.41
- Kurtosis
- -1.09
- Upside Potential
- +3.38
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
💡
Data Source Notice: AlphaSMO is the web's most authoritative 13F / Inside Trader database. Institutional holdings and insider trades presented here are precisely computed to deliver accurate portfolio reporting.
Holding changes this quarter
Castlefield Investment Partners LLP's most significant position changes for 2026-06-30: New buy: Micron Technology Inc (MU); Sold out: CRH plc (CRH); Add: Kla CORP (KLAC) — shares +930.49%; Add: Netflix Inc (NFLX) — shares +2.39%; Add: T-mobile US Inc (TMUS) — shares +2.49%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | MU | Micron Technology Inc | +4.2% | NEW | New buy |
| 2 | KLAC | Kla CORP | +3.6% | +930.49% | Add |
| 3 | GOOGL | Alphabet Inc-cl A | +0.4% | -5.05% | Trim |
| 4 | NVDA | Nvidia CORP | +0.3% | +2.12% | Add |
| 5 | V | Visa Inc-class A Shares | +0.3% | +5.48% | Add |
| 6 | WAT | Waters CORP | +0.2% | +107.62% | Add |
| 7 | IQV | Iqvia Holdings Inc | +0.2% | +119.32% | Add |
| 8 | URI | United Rentals Inc | +0.2% | +74.36% | Add |
| 9 | RSG | Republic Services Inc | +0.2% | +124.93% | Add |
| 10 | SNA | Snap-on Inc | +0.1% | +4.07% | Add |
| 11 | STE | STERIS plc | — | — | Unchanged |
| 12 | ✓ | Liberty Latin America LTD | — | — | Unchanged |
| 13 | CRM | Salesforce Inc | 0% | +21.71% | Add |
| 14 | MCO | Moody's CORP | 0% | +7.44% | Add |
| 15 | INTU | Intuit Inc | -0.1% | +27.94% | Add |
| 16 | CRH | CRH plc | -0.1% | EXIT | Sold out |
| 17 | LEN | Lennar Corp-a | -0.1% | +2.34% | Add |
| 18 | AAPL | Apple Inc | -0.1% | -3.30% | Trim |
| 19 | DE | Deere & Co | -0.2% | -3.65% | Trim |
| 20 | HASI | Ha Sustainable Infrastructur | -0.2% | +1.59% | Add |
| 21 | HDB | Hdfc Bank Ltd-adr | -0.2% | +2.26% | Add |
| 22 | CB | Chubb Limited | -0.2% | +3.18% | Add |
| 23 | INTC | Intel CORP | -0.2% | -85.20% | Trim |
| 24 | MELI | Mercadolibre Inc | -0.3% | +3.24% | Add |
| 25 | MRK | Merck & Co. Inc. | -0.4% | -4.34% | Trim |
| 26 | TMO | Thermo Fisher Scientific Inc | -0.4% | -4.28% | Trim |
| 27 | AWK | American Water Works Co Inc | -0.4% | +2.03% | Add |
| 28 | SHOP | Shopify Inc - Class A | -0.4% | +2.07% | Add |
| 29 | PG | Procter & Gamble Co/the | -0.4% | -4.87% | Trim |
| 30 | LOW | Lowe's Cos Inc | -0.6% | -3.50% | Trim |
| 31 | NDAQ | Nasdaq Inc | -0.6% | +0.82% | Add |
| 32 | SCI | Service CORP International | -0.8% | -6.60% | Trim |
| 33 | MSFT | Microsoft CORP | -0.9% | -5.52% | Trim |
| 34 | BSX | Boston Scientific CORP | -0.9% | +5.66% | Add |
| 35 | TMUS | T-mobile US Inc | -1% | +2.49% | Add |
| 36 | NFLX | Netflix Inc | -1.2% | +2.39% | Add |
Filing History
FAQ
What is Castlefield Investment Partners LLP and what type of investor is it?
Castlefield Investment Partners LLP 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 $147.3M, spread across 35 disclosed positions.
What are Castlefield Investment Partners LLP's largest equity positions?
Based on the latest 13F filing, Castlefield Investment Partners LLP's top holdings by market value are:
1. Nvidia CORP (NVDA) — $12.4M (8.4%)
2. Kla CORP (KLAC) — $11.3M (7.7%)
3. Alphabet Inc-cl A (GOOGL) — $11.2M (7.6%)
4. Apple Inc (AAPL) — $9.9M (6.7%)
5. Microsoft CORP (MSFT) — $7.1M (4.8%)
What changes did Castlefield Investment Partners LLP make in its most recent portfolio filing?
In the latest reported quarter, Castlefield Investment Partners LLP made 34 notable position adjustments: 1 new positions were initiated, 22 existing holdings were added to, 10 positions were partially reduced, and 1 were completely exited. The largest of these moves: New buy: Micron Technology Inc (MU); Sold out: CRH plc (CRH); Add: Kla CORP (KLAC) — shares +930.49%; Add: Netflix Inc (NFLX) — shares +2.39%; Add: T-mobile US Inc (TMUS) — shares +2.49%
What sectors does Castlefield Investment Partners LLP focus on?
Castlefield Investment Partners LLP is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 35.2%
• Financials: 21.1%
• Communication Services: 13.0%
• Consumer Discretionary: 9.7%
• Health Care: 8.5%
• Industrials: 7.3%
Investment Profile
Castlefield Investment Partners LLP returned an annualized 14.5% over the trailing 6 months — underperforming the S&P 500 by 2.5 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 0.70 (less volatile than the market) and a 33% quarterly batting average against the index.
Its portfolio is broadly diversified and long-term-holding, with 35.2% of the portfolio concentrated in Information Technology.
Its turnover score has risen from 0 to 20 over the past 2 quarters — a shift toward more active trading.
It has added to its SNA position over the past two quarters (+$3.8M, now $3.9M), while trimming BSX over the same stretch (-$2.1M, still holding $2.4M).
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