Prompt Library analysis advanced

ChatGPT Prompts for Trading Strategies: Build and Backtest Ideas

ChatGPT prompts for developing and evaluating trading strategies. Strategy design, backtesting frameworks, edge identification, and rule-based system development.

Tested on: GPT-4oClaude 4

The Prompt

Act as a quantitative trader and strategy developer with experience backtesting systematic trading strategies across crypto, equities, and forex.
Develop or evaluate the following trading strategy:
Strategy concept: {describe the trade idea in plain English — what market condition are you trying to capture?}
Asset class: {crypto / equities / forex / futures}
Timeframe: {intraday / daily / weekly / positional}
Entry rules: {describe entry conditions — what specific criteria trigger a trade?}
Exit rules: {describe exit conditions — profit target, stop loss, time exit?}
Position sizing: {fixed size / % risk / volatility-adjusted}
Historical data availability: {do you have data to backtest? If yes, what period?}

Strategy evaluation:
1. Edge hypothesis (what market inefficiency or behavioral pattern does this strategy exploit?)
2. Strategy rules formalization (convert your description into precise if/then rules)
3. Backtest design:
   - Required sample size for statistical significance
   - Train/test split recommendation
   - Metrics to optimize for (Sharpe / Sortino / max drawdown / win rate)
4. Failure modes (under what market conditions would this strategy fail?)
5. Overfitting risk assessment (does the strategy have enough rules? Too many? Signs of curve-fitting?)
6. Implementation requirements (data, tools, or execution infrastructure needed)
7. Similar documented strategies (if applicable — academic or practitioner strategies with similar logic)

Constraints:
- Not financial advice — for educational purposes only
- Edge hypothesis must be falsifiable — "prices go up in bull markets" is not an edge
- Sample size requirement must be calculated, not guessed
- Acknowledge if the strategy requires special execution capability (low latency, dark pool access, etc.)

Variables to fill in

  • {strategy concept} The trade idea in plain English — what are you trying to capture?
  • {entry/exit rules} Specific conditions that trigger entries and exits
  • {timeframe} Intraday, daily, weekly, or positional
  • {asset class} Crypto, equities, forex, or futures
  • {position sizing} Fixed size, percentage risk, or volatility-adjusted

How to use this prompt

  1. Define your edge hypothesis before writing a single line of backtest code
  2. Use the failure modes section to design tests that specifically try to break the strategy
  3. Apply the overfitting risk criteria — if you have fewer than 100 trades in a backtest, the results are unreliable
  4. Document the strategy using the formalized rules before live testing with real capital

Recommended exchange

Coinbase Advanced

Up to 3.85% USDC rewards on trading balance, low maker/taker fees, and full Coinbase Advanced toolset.

Open Coinbase Advanced →

Pair this prompt with the Free BTC AI Predictor for live market context.

Algorithmic trading strategy backtesting results on quantitative analysis screen
Photo by Chris Liverani on Unsplash

The edge hypothesis is the most important sentence in any trading strategy

Every profitable trading strategy exploits a specific, articulable market inefficiency: momentum continues because institutional rebalancing creates predictable flows; volatility mean-reverts because implied volatility is consistently overpriced by options sellers; breakouts follow through because stop-loss orders cluster around round numbers. If you can’t state your edge hypothesis in one sentence, you don’t have a strategy — you have a hope.

Backtests lie in specific, predictable ways

Survivorship bias (only testing assets that still exist), look-ahead bias (using data not available at decision time), and overfitting (tuning to historical noise) all inflate backtest returns above live trading results. The strategy evaluation section explicitly checks for each of these. A backtest that survives these checks is meaningfully different from one that doesn’t.

100 trades is the minimum backtest sample size

A strategy that produced 20 trades in a backtest has so much statistical uncertainty that you can’t distinguish skill from luck. At 100 trades, you can start drawing tentative conclusions. At 500+, you have enough data to optimize meaningfully. The sample size requirement in this prompt prevents the most common backtest mistake: concluding that a 15-trade backtest proves anything at all.