Jordan Learn https://jordansheets.ai/learn/ Guides to algorithmic trading and prediction-market research. What is algorithmic trading? A plain-English guide https://jordansheets.ai/learn/what-is-algorithmic-trading/ https://jordansheets.ai/learn/what-is-algorithmic-trading/ Tue, 06 Oct 2026 12:00:00 GMT Algorithmic trading means making trading decisions with explicit, testable rules. Here is how it works, the main strategy families, and how to start researching without writing code. How to backtest a trading strategy without fooling yourself https://jordansheets.ai/learn/how-to-backtest-a-trading-strategy/ https://jordansheets.ai/learn/how-to-backtest-a-trading-strategy/ Tue, 06 Oct 2026 12:00:00 GMT A step-by-step backtesting method, the six biases that make bad strategies look good, and the spreadsheet layout and formulas to run one honestly. How prediction market prices work, and how to read them as probabilities https://jordansheets.ai/learn/prediction-market-prices-as-probabilities/ https://jordansheets.ai/learn/prediction-market-prices-as-probabilities/ Tue, 06 Oct 2026 12:00:00 GMT A Kalshi contract that pays $1 trading at 62ยข implies about a 62% chance. Here is how bids, asks and multi-outcome markets turn into clean implied probabilities, with formulas. Market calibration: do favorites win as often as their price says? https://jordansheets.ai/learn/market-calibration/ https://jordansheets.ai/learn/market-calibration/ Tue, 06 Oct 2026 12:00:00 GMT How to test whether prediction-market prices are well calibrated, with price bins, a reliability chart, the Brier score and the sample-size check most studies skip. Expected value and edge: the math behind every profitable trade https://jordansheets.ai/learn/expected-value-and-edge/ https://jordansheets.ai/learn/expected-value-and-edge/ Tue, 06 Oct 2026 12:00:00 GMT How to compute the expected value of a binary event contract, include fees and spreads, find your breakeven probability, and tell edge apart from variance. Position sizing with the Kelly criterion (and why most traders use a fraction of it) https://jordansheets.ai/learn/kelly-criterion-position-sizing/ https://jordansheets.ai/learn/kelly-criterion-position-sizing/ Tue, 06 Oct 2026 12:00:00 GMT The Kelly criterion tells you what fraction of your bankroll to risk on a bet with an edge. Here is the formula for binary event contracts, a worked example, and why fractional Kelly is the practical choice. How to research trades with an AI spreadsheet agent https://jordansheets.ai/learn/ai-spreadsheet-agent-for-trading-research/ https://jordansheets.ai/learn/ai-spreadsheet-agent-for-trading-research/ Tue, 06 Oct 2026 12:00:00 GMT A practical guide to using an AI agent that builds trading research in a spreadsheet, covering how to phrase questions, review changes, and keep the analysis auditable.