How to set stop-loss in quantitative strategies: explaining universal stop-loss design starting from the Polaris strategy

Stop-loss is the most overlooked—and error-prone—component in quant strategies. Many novice strategies look great in backtests but blow up the moment you run them live. Often, the culprit is poor stop-loss design: either it’s too wide and lets single trades lose too much, or it’s too tight and gets whipsawed by market noise. This article draws from the actual design of the Polaris strategy and covers general stop-loss design principles. ...

2026-04-10 · 6 min · 1242 words · Panshi

Writing quantitative strategies with Claude: The complete process from zero to signal delivery

Writing Quant Strategies with Claude Building quant strategies has a high barrier to entry: you need to understand trading logic and write code. Claude cuts that barrier in half — you just need to know the trading logic, and it handles the code part. This article documents my process of building a complete quantitative signal system from scratch with Claude. ...

2026-04-08 · 4 min · 677 words · Panshi