Insights

Notes on investing.

Investment theses and value-investing notes written by Parasurama Praveen. Short summaries below; each links to the full note on Substack.

Investing Principles Aug 2026

Stop Labelling Yourself

Great investors resist labelling themselves “value,” “growth,” or “special situations” specialists, because every strategy has its season and a rigid label quietly filters out good opportunities. Drawing on John Templeton’s flexible career — leveraged bets in 1939, Japanese growth stocks in the 1950s, contrarian US buys in 1979, shorting tech in 2000 — it argues you should stay anchored to bedrock principles while adapting your approach as the facts change.

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Investing Principles Jul 2026

Half a Century of Patience

A frugal, Holocaust-surviving couple entrusted their savings to a young Warren Buffett in the 1960s and left the money untouched for more than 50 years. It compounded into over $500 million — later the largest single charitable donation in the history of the State of Israel — a lesson in how even modest capital, given decades and the right manager, can grow into a fortune.

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Investing Principles Jun 2026

Buffett-Munger Principles in Real Estate

Value-investing principles reach well beyond stocks. Through the career of Silicon Valley real-estate investor John Arrillaga — a friend of Charlie Munger who built a $2.5 billion fortune — the piece draws out ten Buffett-Munger ideas at work: a narrow circle of competence, avoiding leverage, patience, lean operations, and buying with a margin of safety.

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Investment Thesis Apr 2026

Kore Digital — A Fat Pitch?

A thesis on Kore Digital, a Mumbai telecom-infrastructure nanocap trading near a 2.6x P/E after an 88% fall driven by sentiment rather than fundamentals. The company is growing on the back of the Samruddhi project with lease revenue still to begin, and its move into 3D metal printing for defence adds an asymmetric optionality on top of the core business.

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Investment Thesis Jul 2025

International Gemological Institute (IGI)

A deep-dive on IGI, the market leader in lab-grown diamond certification with a 65% global share, no debt, and ROCE and ROE both above 45%. The note examines the oligopolistic certification industry, IGI’s moat and Blackstone ownership, and concludes the stock trades close to fair value with growth tied to the rising acceptance of lab-grown diamonds.

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Investment Thesis Mar 2025

Indus Towers Ltd

A thesis on Indus Towers, the world’s third-largest tower company, whose stock stayed flat for nearly a decade under the overhang of Vodafone Idea’s financial distress. With dues largely recovered, low debt, high margins, and 5G-driven tenancy growth ahead, the analysis finds the stock trading at a discount on both a DCF and Buffett’s equity-bond method.

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The full archive lives on Substack ↗.