Walk Forward — StoriesStories from the Walk Forward desk at Ferrante Capital — systematic trading, backtest honesty, and the process behind the weekly letter.https://ferrantecap.com/en-usBuilding this in public: what we'll show and what we won'thttps://ferrantecap.com/stories/what-we-show-and-what-we-wont/https://ferrantecap.com/stories/what-we-show-and-what-we-wont/The standing promises behind Walk Forward: what we'll publish, what we never will, and why a trading-research letter is better when the failures ship too.Tue, 21 Jul 2026 00:00:00 GMTBuild logmissionbuild-in-publicbacktest-honestySlippage: the tax nobody modelshttps://ferrantecap.com/stories/slippage-the-tax-nobody-models/https://ferrantecap.com/stories/slippage-the-tax-nobody-models/Spreads, market impact, and fill fantasies: how trading costs quietly eat simulated edges, and why so many paper strategies die on contact with a real order book.Sat, 18 Jul 2026 00:00:00 GMTMarket structureslippagetrading-costsmarket-structureexecutionWalk-forward testing, explained like you're busyhttps://ferrantecap.com/stories/walk-forward-testing-explained/https://ferrantecap.com/stories/walk-forward-testing-explained/In-sample, out-of-sample, and the rolling test this publication is named after: why walk-forward is the closest a simulation gets to honesty, in one coffee break.Thu, 16 Jul 2026 00:00:00 GMTBacktest schoolbacktestingwalk-forwardout-of-samplevalidationWhy most backtests liehttps://ferrantecap.com/stories/why-most-backtests-lie/https://ferrantecap.com/stories/why-most-backtests-lie/Overfitting, survivorship bias, look-ahead, and free trading: the four classic ways a backtest flatters itself, and what honest testing does about each one.Tue, 14 Jul 2026 00:00:00 GMTBacktest schoolbacktestingoverfittingsurvivorship-biaslook-ahead