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Castle Hook Partners LP
Joshua Donfeld · Hedge Fund · Macro
Castle Hook Partners LP is a New York-based investment management firm founded in 2016 by Joshua Donfeld and David Rogers, both former senior portfolio managers at Soros Fund Management. The firm specializes in global macro and opportunistic investment strategies, managing alternative assets for institutional and high-net-worth clients. Castle Hook focuses on identifying structural shifts and thematic trends in global markets, utilizing a team-based approach to navigate diverse asset classes including equities, fixed income, commodities, and currencies. Headquartered in New York with an additional presence in Washington D.C., the firm is recognized for its research-intensive process and its pedigree stemming from one of the world's most successful macro investing environments.
Simulated Performance
| Metric | Value |
|---|---|
| Total return | +27.8% |
| YTD return | +17.2% |
| Sharpe ratio | 2.88 |
| Win rate | 39% |
| AUM | $6.1B |
| Inception | Oct 1, 2025 |
| Updated | Sep 16, 2026 |
Institution Status
| Field | Value |
|---|---|
| AUM | $6.1B |
| Turnover | Low (<15%) |
| Avg holding | 18 Months |
| Inception | Oct 1, 2025 |
| Website | https://www.castlehook.com |
Current Holdings
Updated on Sep 16, 2026.
| Ticker | Name | Portfolio % | Return |
|---|---|---|---|
| NTRA | Natera Inc | 13.8% | +83.2% |
| LLY | Eli Lilly and Company | 8.7% | -3.1% |
| STX | Seagate Technology PLC | 7.5% | +85.3% |
| DHR | Danaher Corporation | 7.2% | -0.5% |
| WDC | Western Digital Corporation | 6.8% | +62.7% |
| SNDK | Sandisk Corp | 6.6% | +1.3% |
| DXCM | DexCom Inc | 5.6% | -3.8% |
| AMZN | Amazon.com Inc | 5.3% | -7.7% |
| VIK | Viking Holdings Ltd | 4.0% | -3.5% |
| WELL | Welltower Inc | 3.9% | +20.2% |
| W | Wayfair Inc | 3.9% | -0.4% |
| TTMI | TTM Technologies Inc | 3.6% | -16.4% |
| CRBG | Corebridge Financial Inc. | 3.3% | +6.8% |
| EQH | Axa Equitable Holdings Inc | 3.1% | +7.3% |
| COMP | Compass Inc | 3.1% | -5.8% |
| DKS | Dick’s Sporting Goods Inc | 3.0% | -8.5% |
| AMAT | Applied Materials Inc | 3.0% | -9.3% |
| LIN | Linde plc Ordinary Shares | 2.6% | -9.9% |
| FIX | Comfort Systems USA Inc | 2.6% | -1.4% |
| GOOGL | Alphabet Inc Class A | 2.5% | -1.1% |
Recent activity
| Date | Action | Ticker | Weight |
|---|---|---|---|
| Sep 7, 2026 | SELL | TTMI | 3.5% → 3.6% |
| Sep 7, 2026 | BUY | DXCM | 5.7% → 5.6% |
| Sep 7, 2026 | SELL | CRDO | 2.8% → 0.0% |
| Sep 7, 2026 | BUY | CRBG | 3.1% → 3.3% |
| Sep 7, 2026 | SELL | STX | 7.4% → 7.5% |
Investment Style Analysis
Castle Hook Partners LP is widely recognized for employing a Macro strategy. As of Sep 16, 2026, the firm oversees approximately $6.1B in assets under management (AUM). The portfolio demonstrates a clear preference for the Diagnostics & Research and Computer Hardware sectors, reflecting a high-conviction approach to capital allocation.
Recent Market Moves
During the latest rebalancing period ending Sep 7, Castle Hook Partners LP made a significant move by reducing the position in TTMI. This adjustment aligns with the fund's dynamic approach to risk management and capital deployment in current market conditions.
Investment Philosophy
Castle Hook’s investment philosophy is centered on the integration of top-down macroeconomic analysis with rigorous bottom-up security selection. The firm believes that the most compelling investment opportunities occur at the intersection of powerful global macro trends and idiosyncratic asset-specific merits. Their strategy involves a discretionary, global opportunistic approach that seeks to construct a concentrated portfolio across all major asset classes, including liquid equities, credit, and macro instruments. By synthesizing market-wide economic insights with deep fundamental due diligence and technical analysis, Castle Hook aims to generate high-conviction ideas that offer superior risk-adjusted returns uncorrelated to broader equity market movements.
Disclaimer
The content provided on this page, including the simulated portfolio performance, holdings analysis, and AI-generated insights, is for informational and educational purposes only. It does not constitute financial advice, investment recommendations, or an offer to buy or sell any securities. All data is derived from historical SEC 13F filings and other public disclosures, which have a reporting lag. The "Simulated Performance" is a hypothetical reconstruction based on past disclosures and does not represent the actual returns of the institution. Past performance is not indicative of future results. Tritonix.ai is not affiliated with Castle Hook Partners LP.
Similar Investment Style
Based on Macro.
- U.S. Global Investors, Inc. — Frank Holmes · 3M -12.8%
- Soros Fund Management LLC — Dawn Fitzpatrick · 3M +0.5%
- Caxton Associates (USA) LLC — Andrew Law · 3M +3.7%
- Bridgewater Associates — Nir Bar Dea · 3M -13.1%
Frequently asked questions
How is the simulated portfolio for Castle Hook Partners LP constructed?
This simulation is powered by Tritonix AI using official SEC filings. We focus on the "Best Ideas" by filtering for only the Top 20 largest holdings and rebalancing them to 100%. The simulation tracks performance starting from Oct 1, 2025. Our AI monitors for updates every Monday to capture major shifts. This concentrated approach highlights the manager's true stock-picking skill and mirrors their actual investment returns.
What is Castle Hook Partners LP's largest holding?
As of the latest filing, Castle Hook Partners LP's top position is Natera Inc (NTRA), representing 13.8% of the portfolio. This reflects a high-conviction bet by the institution.
What is Castle Hook Partners LP's historical performance and risk profile?
Our simulation indicates a total return of +27.8% with a win rate of 39%. Notably, the portfolio maintains a Sharpe Ratio of 2.88, suggesting an excellent level of risk-adjusted returns compared to the broader market.
What sectors does Castle Hook Partners LP primarily invest in?
Castle Hook Partners LP has a strong preference for the Diagnostics & Research sector, which makes up 21.0% of their disclosed assets. The portfolio also has exposure to Computer Hardware, indicating a specific thematic focus.
Is Castle Hook Partners LP's portfolio concentrated or diversified?
Castle Hook Partners LP runs a moderately concentrated portfolio with 20 disclosed positions. The top 3 holdings alone account for 30.0% of the total portfolio weight, suggesting a strategy that favors broader market exposure.
How has Castle Hook Partners LP performed in 2026?
Our AI-simulated model portfolio for Castle Hook Partners LP tracks a Year-to-Date (YTD) return of +17.2%. This metric helps investors gauge the institution's effectiveness in the current market environment.
Does Joshua Donfeld manage Castle Hook Partners LP directly?
Yes, Joshua Donfeld serves as the key portfolio manager for Castle Hook Partners LP, overseeing the investment strategy and final capital allocation decisions.