Overview

This strategy is a simple position holding strategy based on SMA lines. It goes long when the short term SMA line crosses over the long term SMA line, and closes position when the short term SMA line crosses below the long term SMA line.

Strategy Principle

The strategy uses two SMA lines, one short term 20-day line and one long term 50-day line. The short term line can catch price trend changes faster, while the long term line filters out short term noise. When the short term line rises quickly above the long term line, it indicates the trend may have started a long term upturn, so we go long here. When the short term line drops below the long term line, it suggests the uptrend may have ended, so we close position here.

In summary, this strategy utilizes the curve features of SMA lines to determine price movement trends on two time dimensions, and makes stable profits with relatively steady position holding.

Advantage Analysis

The advantages of this strategy include:

1. Simple to operate, easy to understand, low barrier to use
2. Relatively stable by leveraging the strengths of SMA lines
3. Long holding periods, less impacted by short term market noise
4. Few configurable parameters, easy to find optimal parameter combinations

Risk Analysis

The risks of this strategy include:

1. More stop losses possible when prolonged range-bound markets
2. SMA lines have lagging effect, cannot catch immediate price changes
3. Unable to capitalize on short term spike pullback patterns
4. Unable to control single trade loss size

Optimization Directions

This strategy can be further optimized in the following aspects:

1. Add MACD indicator to identify bottom rebound timing for less losses during range-bound markets
2. Test different SMA line parameter combinations to find optimal
3. Incorporate domestic indicators for spotting trend divergence, improving entry accuracy
4. Add profit taking and stop loss mechanisms to control per trade profit/loss

Summary

In summary, this SMA position holding strategy is stable, simple and easy to operate, suitable for beginner live trading. As algo trading keeps evolving, this strategy can incorporate more indicators and techniques for better performance.