Blog
Notes from building a trading engine.
Backtest correctness, indicator precision, parameter search, and the engineering behind shipping a deterministic backtester to the browser.
-
5 minDescribe a trading strategy in English. Watch the canvas build itself.
The Backticks AI assistant turns a sentence into a working strategy graph — typed indicator and signal nodes you can edit by hand, not a black box of generated code.
ai · feature · product
-
8 minThe streaming SMA quietly lies on long crypto backtests — and how Backticks fixes it
The fast running-sum SMA accumulates IEEE-754 error on long crypto backtests — enough to flip crossover signals. Here's how the bug works, and four ways to fix it.
indicators · engine · feature
-
7 minLook-ahead bias: why most browser backtesters lie, and how Backticks prevents it by construction
Look-ahead bias is why backtests show 800% returns and lose money live. The four ways it hides — and the engine guarantees that make it structurally impossible in Backticks.
backtesting · engine · feature
-
7 minGenetic-algorithm parameter optimisation for trading strategies — without overfitting your way to ruin
Most parameter sweeps fit noise, not edge. Backticks runs genetic search with walk-forward validation and score-tier clustering — so it tells the difference.
optimisation · feature · engine
-
5 minTick-by-tick replay: debug a trading strategy one bar at a time
A backtest equity curve tells you a strategy worked, not why. Backticks replay walks every tick — indicators, signals, and orders, exactly as the engine saw them.
feature · debugging · backtesting