Trading quantitative strategies, parameter settings directly impact the final returns. Different strategies have varying sensitivities to parameters; the key is to adjust them flexibly based on real-time market conditions.

**How to play spot grid trading?** In ranging markets, setting the grid spacing to 1%-3% with 10-20 layers is more stable. But if market volatility suddenly increases, you can widen the spacing to 3%-5%, which helps reduce the trouble of frequent triggers.

**Futures grid trading carries higher risks, and parameters need to be more cautious.** Leverage is recommended to be controlled within 5-10x (there's no need to be too aggressive). Grid spacing of 2%-4% is more appropriate, and most importantly, set a stop-loss line at 8%-10%. When extreme market conditions hit suddenly, this line can save your position.

**Martingale scoring scenarios.** For spot trading, a doubling factor of 1.5-2x is reasonable. Do not exceed 8 layers of position addition, or the capital pressure will be significant. For futures, be more conservative—reduce the multiplier to 1.2-1.5x, and keep layers within 5 to balance capital efficiency.

**Trend-based Martingale relies on trend judgment.** Use 4-hour or daily K-line charts to determine the main direction. Set the trend cycle to 3-5 days, and adjust the take-profit range between 5%-10% based on the strength of the wave. Once a trend reversal signal appears, close positions decisively—don't bet on rebounds.

All parameters are not fixed; they should be dynamically adjusted according to the volatility of the underlying asset. It is strongly recommended to backtest thoroughly with historical data, verify that the strategy logic works, and only then go live with real funds. This way, you can trade with confidence.