Local trading dashboard tutorial

Recorded with Playwright 1.64.1. Historical BTC-USD daily prices illustrate the research workflow. Past results do not predict future performance. Slider drags and calculations play at original speed. The visible pointer follows the same timed curves used to operate the browser.

00:00:00.018
Load historical prices once. Reuse them for each test.
Yahoo Finance / BTC-USD / daily bars / 2018 through 2025.

00:00:08.270
Drag a parameter. Watch the chart respond.
Each preview is a fresh local backtest on the loaded historical prices.

00:00:20.387
Change the lookback. Recalculate momentum and fills.
The same bars, costs and execution rules stay in place.

00:00:31.734
Include execution costs.
Fees and slippage apply to both sides of each trade.

00:00:37.885
Read the result, then compare the account curves.
Returns include costs and any open position marked at the last close.

00:00:43.634
Test a region, rather than one chosen setting.
165 combinations. Bollinger width stays fixed.

00:00:51.918
Select a cell to apply its parameters.
The chart and report rerun with that exact lookback and Keltner width.

00:00:55.647
Inspect the trades behind the aggregate return.
Completed-bar decisions. Fills at the following open.

00:01:04.970
Apply the configuration selected on earlier data.
Lookback 15 / Bollinger width 2 / Keltner width 3.25 / RSI off.

00:01:12.784
2024-2025: +83.70% after costs.
Chosen on 2018-2023 / 15.92% maximum drawdown / six closed trades.