- σA Stock Ranking Is a Database Transaction
- σFinancial Ratios Need a Type System
- σThe S&P 500 Is a Time Series
- σA Company Is Not a Stock
- σTicker Symbols Have Expiration Dates
- σAdjusted Prices Rewrite History
- σThe Filing Date Is Part of the Number
- σFinancial Statements Have Versions
- σMarket Cap Is Not Shares Outstanding Times Price
- σEnterprise Value Is Easy Until You Read the Filing
- σRevenue Is Not a Number
- σA Stock Screener Is a Database Problem