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Clearline Capital LP
Marc Majzner · Hedge Fund · Long/Short Equity
Clearline Capital LP is a New York-based investment management firm founded in 2013 by Marc Majzner. The firm operates as a hedge fund manager specializing in catalyst-driven long/short equity strategies, with a primary focus on mid-cap stocks within the global equity markets. By employing a disciplined, research-intensive approach, Clearline seeks to identify asymmetric risk-reward opportunities where fundamental value differs significantly from market pricing. The firm is registered with the SEC and provides investment advisory services to private funds, aiming to deliver high absolute rates of return while maintaining a rigorous focus on risk management and capital preservation.
Simulated Performance
| Metric | Value |
|---|---|
| Total return | +85.5% |
| YTD return | +48.9% |
| Sharpe ratio | 3.94 |
| Win rate | 59% |
| AUM | $1.0B |
| Inception | Oct 1, 2025 |
| Updated | Aug 20, 2026 |
Institution Status
| Field | Value |
|---|---|
| AUM | $1.0B |
| Turnover | Low (<15%) |
| Avg holding | 18 Months |
| Inception | Oct 1, 2025 |
| Website | http://www.clearlinecap.com |
Current Holdings
Updated on Aug 20, 2026.
| Ticker | Name | Portfolio % | Return |
|---|---|---|---|
| CORZ | Core Scientific, Inc. Common Stock | 15.2% | -15.7% |
| MU | Micron Technology Inc | 10.8% | +156.1% |
| AMD | Advanced Micro Devices Inc | 7.2% | +68.5% |
| NVDA | NVIDIA Corporation | 6.5% | +8.2% |
| ROG | Rogers Corporation | 6.3% | +26.6% |
| PRMB | Primo Brands Corporation | 5.5% | +16.5% |
| SMTC | Semtech Corporation | 5.1% | +5.7% |
| NOVT | Novanta Inc | 4.5% | +23.4% |
| VST | Vistra Energy Corp | 4.1% | -15.4% |
| TLN | Talen Energy Corporation | 4.0% | -16.6% |
| TIC | Acuren Corporation | 4.0% | -10.9% |
| MSGS | Madison Square Garden Sports Corp | 3.7% | +43.4% |
| ESTC | Elastic NV | 3.6% | +47.7% |
| MAX | MediaAlpha Inc. | 3.4% | +29.3% |
| ECHO | ECHO | 3.0% | -11.6% |
| AKAM | Akamai Technologies Inc | 2.8% | -23.4% |
| ETSY | Etsy, Inc. | 2.6% | +16.7% |
| RKT | Rocket Companies Inc | 2.5% | -4.9% |
| PSN | Parsons Corp | 2.5% | -12.5% |
| SNOW | Snowflake Inc. | 2.5% | +7.9% |
Recent activity
| Date | Action | Ticker | Weight |
|---|---|---|---|
| Aug 17, 2026 | BUY | ESTC | 3.0% → 3.6% |
| Aug 17, 2026 | SELL | NOVT | 4.2% → 4.5% |
| Aug 17, 2026 | BUY | VST | 4.4% → 4.1% |
| Aug 17, 2026 | SELL | AMD | 7.7% → 7.2% |
| Aug 17, 2026 | SELL | SMTC | 4.7% → 5.1% |
Investment Style Analysis
Clearline Capital LP is widely recognized for employing a Long/Short Equity strategy. As of Aug 20, 2026, the firm oversees approximately $1.0B in assets under management (AUM). The portfolio demonstrates a clear preference for the Semiconductors and Software - Infrastructure sectors, reflecting a high-conviction approach to capital allocation.
Recent Market Moves
During the latest rebalancing period ending Aug 17, Clearline Capital LP made a significant move by increasing exposure to ESTC. This adjustment aligns with the fund's dynamic approach to risk management and capital deployment in current market conditions.
Investment Philosophy
Clearline Capital utilizes a value-oriented and catalyst-driven investment philosophy to construct a portfolio primarily composed of long and short equity positions. The firm's strategy is centered on deep fundamental research and intensive scenario analysis, often informed by a macroeconomic overlay. Clearline identifies securities where a specific event or catalyst is expected to narrow the gap between a security's trading price and its intrinsic value. By focusing on qualitative and quantitative business fundamentals, the firm aims to capture alpha from market inefficiencies while actively managing risk through disciplined portfolio construction and the use of options to hedge macro-level exposures.
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 Clearline Capital LP.
Similar Investment Style
Based on Long/Short Equity.
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Frequently asked questions
How is the simulated portfolio for Clearline Capital 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 Clearline Capital LP's largest holding?
As of the latest filing, Clearline Capital LP's top position is Core Scientific, Inc. Common Stock (CORZ), representing 15.2% of the portfolio. This reflects a high-conviction bet by the institution.
What is Clearline Capital LP's historical performance and risk profile?
Our simulation indicates a total return of +85.5% with a win rate of 59%. Notably, the portfolio maintains a Sharpe Ratio of 3.94, suggesting an exceptional level of risk-adjusted returns compared to the broader market.
What sectors does Clearline Capital LP primarily invest in?
Clearline Capital LP has a strong preference for the Semiconductors sector, which makes up 29.6% of their disclosed assets. The portfolio also has exposure to Software - Infrastructure, indicating a specific thematic focus.
Is Clearline Capital LP's portfolio concentrated or diversified?
Clearline Capital LP runs a moderately concentrated portfolio with 20 disclosed positions. The top 3 holdings alone account for 33.3% of the total portfolio weight, suggesting a strategy that favors broader market exposure.
How has Clearline Capital LP performed in 2026?
Our AI-simulated model portfolio for Clearline Capital LP tracks a Year-to-Date (YTD) return of +48.9%. This metric helps investors gauge the institution's effectiveness in the current market environment.
Does Marc Majzner manage Clearline Capital LP directly?
Yes, Marc Majzner serves as the key portfolio manager for Clearline Capital LP, overseeing the investment strategy and final capital allocation decisions.