Risk & Portfolio
Concentration vs Diversification: The Trade-Off
Concentration vs diversification: the real trade-off between betting big on your best ideas and spreading risk, and how to decide which suits you.
Read guide → Risk & PortfolioCorrelation and Why It Matters for Diversification
Correlation in investing explained: what it measures, why low correlation is the engine of real diversification, and why correlations rise to one in a crisis.
Read guide → Risk & PortfolioDrawdowns Explained: Surviving the Downturns
Drawdowns explained: what they are, why recovery maths is brutal, why they are inevitable, and how to survive downturns without selling at the bottom.
Read guide → Risk & PortfolioHow to Build and Use a Stock Watchlist
How to build and use a stock watchlist: why every investor needs one, what to record per company, your buy prices, and how to act when opportunity strikes.
Read guide → Risk & PortfolioHow to Diversify a Stock Portfolio Properly
How to diversify a portfolio properly: real versus fake diversification, how many stocks you actually need, and how to spread risk across what matters.
Read guide → Risk & PortfolioHow to Rebalance Your Portfolio
How to rebalance a portfolio: what rebalancing is, the main methods, how often to do it, the tax and cost traps, and how it differs for quality stock pickers.
Read guide → Risk & PortfolioThe Kelly Criterion for Position Sizing
The Kelly criterion explained for investors: the formula, why full Kelly is too aggressive, and how to use fractional Kelly for position sizing.
Read guide → Risk & PortfolioWhat Is Beta and Why It's a Flawed Risk Measure
Beta explained in plain English: what it measures, how it is calculated, and why it is a flawed measure of real risk for long-term investors.
Read guide → Risk & PortfolioWhen to Sell a Stock: A Disciplined Framework for Long-Term Investors
Sell a stock when the reason you bought it is no longer true, not when the price moves.
Read guide → Risk & PortfolioPosition Sizing: How Much to Invest in Each Stock (and Why It Matters)
How much capital to allocate to each stock is more important than which stocks to own. The Kelly Criterion and conviction-based sizing explained.
Read guide → Risk & PortfolioHow Many Stocks Should I Own? Concentration vs Diversification
How many stocks to own depends on your research capacity, conviction, and risk tolerance.
Read guide → Risk & PortfolioWhat Is Investment Risk? Why Volatility Is Not the Real Danger
What is investment risk, really? Most investors have it backwards. Learn why risk isn't volatility — and why the price you pay is your greatest protection.
Read guide →