Krishna Memani on the "Free Lunch" of Diversification and Market Realities

The Diversification Mantra

• 💡 The core tenet of modern finance, diversification, suggests spreading investments across various assets to reduce risk without sacrificing returns.
• 🎯 However, over the past 15-20 years, investors who concentrated on big US tech stocks have significantly outperformed diversified portfolios, including international and small-cap stocks.
• 🔑 The theory of diversification, rooted in CAPM and academic research from the '70s-'90s, aims to mitigate security-specific risks.

Why Diversification Has Underperformed

• 📈 Several drivers explain the underperformance of diversification relative to US tech: the tech supremacy of the S&P 500, high profitability of US tech companies, low interest rates in the US, and the existence of private equity.
• ⚠️ The profitability of US tech companies and the strength of the US dollar attracted significant global flows, further boosting US markets.
• 📊 Conversely, international markets like Brazil and Mexico have shown stagnant performance over two decades, despite general economic growth.

The Role of Benchmarks and Flows

• 🎯 Benchmark index providers like MSCI and S&P Global play an active role, influencing investor behavior and portfolio construction.
• 💰 Flows into and out of markets are a critical determinant of equity market performance, as seen with India's shift from foreign to domestic investor dominance.
• 🗣️ The concept of "flows before pros" highlights the significant impact of investor capital movement on market returns.

Career Risk and Institutional Investing

• 💼 In the institutional world, diversification remains the mantra, partly due to career risk; deviating from accepted doctrines can be perilous for asset managers.
• ⚖️ Active managers face pressure to outperform peers and benchmarks, sometimes leading them to crowded trades despite the risks.
• 🏦 For institutional investors, benchmarks like the MSCI All-World index continue to guide allocations, even if diversification hasn't yielded expected results.

Re-evaluating Diversification

• 🔍 While diversification between equities and bonds remains valid for risk management due to different volatility characteristics, international equity diversification's benefits have been less pronounced.
• ⏳ The success of diversification should ideally be evaluated over long periods (5-10-20-30 years) to allow economic factors to play out.
• 💡 Recent spectacular returns in European and other international markets (driven by dollar weakness and fiscal expansion) offer a potential shift, but sustainability is key.
• 🧠 The conversation emphasizes the need to re-evaluate diversification strategies, considering valuation contexts and potential drivers beyond historical track records, rather than adhering to it as a rigid doctrine.