# Quantitative trading 

**URL:** https://tradingqna.com/t/quantitative-trading/197256
**Category:** Algos, strategies, code
**Created:** [August 20, 2026, 2:23pm UTC](https://tradingqna.com/t/quantitative-trading/197256 "2026-08-20T14:23:26Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Darshan\_Patel1](https://tradingqna.com/user_avatar/tradingqna.com/darshan_patel1/32/81717_2.png) [@Darshan\_Patel1](https://tradingqna.com/u/Darshan_Patel1)
#### Post date: [August 20, 2026, 2:23pm UTC](https://tradingqna.com/t/quantitative-trading/197256/1 "2026-08-20T14:23:26Z")

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Hi, I’m developing a quantitative trading strategy and I’m facing an issue: my backtests show good profits and a high win rate, but when I run the same strategy in real/paper trading, it starts making losses. I’m looking for someone experienced in quantitative/algo trading who can help me identify the reason, such as overfitting, look-ahead bias, data differences, slippage, latency, execution, or incorrect implementation. If you have experience with this, I would really appreciate your guidance.

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### Author: ![cvs](https://tradingqna.com/user_avatar/tradingqna.com/cvs/32/92503_2.png) [@cvs](https://tradingqna.com/u/cvs)
#### Post date: [August 20, 2026, 3:54pm UTC](https://tradingqna.com/t/quantitative-trading/197256/2 "2026-08-20T15:54:08Z")

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Please also add to the list, the aspect of  
the tool(s) you might be using do NOT actually do what you think they do,  
rather they are only time/memory/compute/data-bound approximations of it.

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### Author: ![J\_R\_Dinesh](https://tradingqna.com/letter_avatar_proxy/v4/letter/j/8797f3/32.png) [@J\_R\_Dinesh](https://tradingqna.com/u/J_R_Dinesh)
#### Post date: [August 20, 2026, 5:26pm UTC](https://tradingqna.com/t/quantitative-trading/197256/3 "2026-08-20T17:26:37Z")

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Where you did backtest and unless u reveal at a high level what strategy does can’t be of any help