Overfitting in Trading: How to Tell If Your Backtest Lies
Overfitting in trading, diagnosed: why the best of 200 backtests looks good by luck, plateau vs spike, walk-forward, deflated Sharpe and a smell test.
10 min
Category
6 guides
Overfitting in trading, diagnosed: why the best of 200 backtests looks good by luck, plateau vs spike, walk-forward, deflated Sharpe and a smell test.
10 min
Where to get NSE historical data free in 2026: NSE's bhavcopy archives, broker APIs, yfinance, jugaad-data, Kaggle and TradingView, and the traps in each.
10 min
What institutional-grade backtesting means — point-in-time data, no look-ahead, real Indian costs, walk-forward — and how Indian traders get it without code.
7 min
The 10 best websites to backtest trading strategies in India — options backtesters, no-code platforms and chart tools — compared honestly for NSE traders.
5 min
What Monte Carlo analysis is, why one backtest equity curve misleads, and how trade shuffling reveals realistic drawdowns — explained for Indian algo traders.
8 min
Backtesting and paper trading validate different things. What each proves, what each misses, and the correct validation sequence for NSE strategies.
7 min