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Blue Whale Capital LLP
Stephen Yiu · Asset Manager · Growth
Blue Whale Capital LLP is a London-based investment management firm founded in 2016 by Stephen Yiu and Peter Hargreaves. The institution is recognized for its flagship WS Blue Whale Growth Fund, which launched in 2017 with significant backing from Hargreaves, the co-founder of Hargreaves Lansdown. Blue Whale specializes in a high-conviction, long-only global equity strategy, focusing on a concentrated portfolio of 25 to 35 high-quality, large-cap companies. The firm employs a fundamental, research-driven approach to identify businesses with strong structural growth prospects and attractive valuations, primarily within developed markets. By conducting all research in-house, the team aims to generate unique insights and significant outperformance over the long term, maintaining a philosophy that prioritizes company-specific fundamentals over broader macroeconomic trends.
Simulated Performance
| Metric | Value |
|---|---|
| Total return | +30.1% |
| YTD return | +24.5% |
| Sharpe ratio | 3.88 |
| Win rate | 50% |
| AUM | $2.7B |
| Inception | Oct 1, 2025 |
| Updated | Sep 18, 2026 |
Institution Status
| Field | Value |
|---|---|
| AUM | $2.7B |
| Turnover | Low (<15%) |
| Avg holding | 18 Months |
| Inception | Oct 1, 2025 |
| Website | https://www.bluewhale.co.uk |
Current Holdings
Updated on Sep 18, 2026.
| Ticker | Name | Portfolio % | Return |
|---|---|---|---|
| NVDA | NVIDIA Corporation | 13.7% | +16.1% |
| LRCX | Lam Research Corp | 12.6% | +102.1% |
| AMAT | Applied Materials Inc | 11.4% | -9.6% |
| AVGO | Broadcom Inc | 7.8% | +3.3% |
| LITE | Lumentum Holdings Inc | 6.4% | +19.9% |
| SNDK | Sandisk Corp | 6.0% | +19.5% |
| GOOGL | Alphabet Inc Class A | 5.0% | -2.7% |
| VRT | Vertiv Holdings Co | 4.6% | +25.7% |
| STX | Seagate Technology PLC | 4.0% | +82.6% |
| LLY | Eli Lilly and Company | 4.0% | +11.8% |
| MOD | Modine Manufacturing Company | 3.6% | -4.2% |
| NEM | Newmont Goldcorp Corp | 3.5% | +15.0% |
| HON | Honeywell International Inc | 2.9% | -40.9% |
| QXO | QXO, Inc. | 2.6% | -17.9% |
| MSI | Motorola Solutions Inc | 2.5% | +10.5% |
| IBKR | Interactive Brokers Group Inc | 2.3% | +23.1% |
| HONA | Honeywell Aerospace Inc | 2.1% | -1.3% |
| APP | Applovin Corp | 1.9% | -37.1% |
| UBER | Uber Technologies Inc | 1.7% | -20.2% |
| SCHW | Charles Schwab Corp | 1.4% | +17.2% |
Recent activity
| Date | Action | Ticker | Weight |
|---|---|---|---|
| Aug 24, 2026 | SELL | SNDK | 8.6% → 6.0% |
| Aug 24, 2026 | SELL | VRT | 5.7% → 4.6% |
| Aug 24, 2026 | BUY | GOOGL | 1.6% → 5.0% |
| Aug 24, 2026 | BUY | AMAT | 0.0% → 11.4% |
| Aug 24, 2026 | SELL | UBER | 2.2% → 1.7% |
Investment Style Analysis
Blue Whale Capital LLP is widely recognized for employing a Growth strategy. As of Sep 18, 2026, the firm oversees approximately $2.7B in assets under management (AUM). The portfolio demonstrates a clear preference for the Semiconductor Equipment & Materials and Semiconductors sectors, reflecting a high-conviction approach to capital allocation.
Recent Market Moves
During the latest rebalancing period ending Aug 24, Blue Whale Capital LLP made a significant move by reducing the position in SNDK. This adjustment aligns with the fund's dynamic approach to risk management and capital deployment in current market conditions.
Investment Philosophy
The institution follows a high-conviction investment philosophy that centers on buying high-quality businesses at attractive valuations. Blue Whale defines a quality business as one capable of transcending macro-economic environments to deliver growth based on strong fundamentals. The firm leverages proprietary in-house research to identify 'mega-trends'—often technology-driven—and builds a concentrated portfolio of 25-35 global stocks, primarily large-caps in developed markets, aiming for significant long-term capital appreciation while remaining benchmark-agnostic. This focused approach allows the investment team to develop deep conviction in a small universe of fewer than 100 companies.
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 Blue Whale Capital LLP.
Similar Investment Style
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Frequently asked questions
How is the simulated portfolio for Blue Whale Capital LLP 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 Blue Whale Capital LLP's largest holding?
As of the latest filing, Blue Whale Capital LLP's top position is NVIDIA Corporation (NVDA), representing 13.7% of the portfolio. This reflects a high-conviction bet by the institution.
What is Blue Whale Capital LLP's historical performance and risk profile?
Our simulation indicates a total return of +30.1% with a win rate of 50%. Notably, the portfolio maintains a Sharpe Ratio of 3.88, suggesting an exceptional level of risk-adjusted returns compared to the broader market.
What sectors does Blue Whale Capital LLP primarily invest in?
Blue Whale Capital LLP has a strong preference for the Semiconductor Equipment & Materials sector, which makes up 24.0% of their disclosed assets. The portfolio also has exposure to Semiconductors, indicating a specific thematic focus.
Is Blue Whale Capital LLP's portfolio concentrated or diversified?
Blue Whale Capital LLP runs a moderately concentrated portfolio with 20 disclosed positions. The top 3 holdings alone account for 37.7% of the total portfolio weight, suggesting a strategy that favors broader market exposure.
How has Blue Whale Capital LLP performed in 2026?
Our AI-simulated model portfolio for Blue Whale Capital LLP tracks a Year-to-Date (YTD) return of +24.5%. This metric helps investors gauge the institution's effectiveness in the current market environment.
Does Stephen Yiu manage Blue Whale Capital LLP directly?
Yes, Stephen Yiu serves as the key portfolio manager for Blue Whale Capital LLP, overseeing the investment strategy and final capital allocation decisions.