The comparison notebook
Practical guides for investors holding stocks, ETFs, or both. Each example is open to explore. No account. No email gate.
Position vs ETF
Follow 100 shares through fees, a partial sale and a final valuation. See how the sold and remaining shares tell different stories.
Download the example inputs (CSV). Fixed fictional inputs, not an IBKR import template or an export of your changes.
TWR vs MWR
Follow two $1,000 deposits through the same two-year investment path. See why the account balance and return measures tell different stories.
Download the benchmark worksheet (PDF, 1 page). Print it and fill it in by hand. No calculations or data collection.