I. Trading system construction
1. Target selection methodology
📊 Quantitative standards:
Market value ranking: strictly limited to TOP 20 mainstream assets
Technical indicators: need to simultaneously meet ✓ MACD weekly golden cross ✓ Bollinger Bands daily breakout ✓ Trading volume triples in three days
Market sentiment: community activity enters the top five rankings
💡 Core cognition:
"Liquidity premium is the lifeline of short-term trading"
II. Capital management matrix
⚖️ Layered control system:
Single position building: 15%-20% (floating adjustment)
Dynamic balance:
Profit exceeding 30% immediately reduce 50%
Loss reaches 15% mandatory stop-loss
Cash reserve: always keep 30% as backup