SHAP-Aligned BUY Signal (Daily, Edge-Triggered)

Based on the XGBoost + SHAP interpretation report, I'll explain which indicators to monitor for buying NVO. However, I must emphasize that this model performed poorly (47.5% accuracy) and should NOT be used for actual trading! That said, here's what the model learned (for educational purposes):
📊 Top Indicators to Monitor for BUY Signals
1. Days_Since_Low (Most Important - 1.264)
Direction: BULLISH ↑
Interpretation: Higher values → UP prediction
What to monitor: Track how many days since the stock hit its recent low
Buy signal: When the stock has been recovering for an extended period (e.g., 100+ days from low)
Why it matters: The model learned that stocks in long-term recovery tend to continue rising
2. SMA_50 (50-day Moving Average) (0.413)
Direction: BULLISH ↑
Interpretation: Higher absolute SMA_50 values → UP prediction
What to monitor: The 50-day simple moving average price level
Buy signal: When SMA_50 is at higher levels (e.g., above $80-90)
Why it matters: Higher moving averages indicate stronger long-term trends
3. SMA_200 (200-day Moving Average) (0.274)
Direction: BULLISH ↑
Interpretation: Higher SMA_200 → UP prediction
What to monitor: The 200-day simple moving average
Buy signal: When SMA_200 is trending upward and at elevated levels
Why it matters: Long-term trend indicator; golden cross (SMA_50 > SMA_200) is traditionally bullish
4. BB_Width (Bollinger Band Width) (0.199)
Direction: BULLISH ↑
Interpretation: WIDER Bollinger Bands → UP prediction
What to monitor: The distance between upper and lower Bollinger Bands
Buy signal: When BB_Width is expanding (increasing volatility often precedes trend moves)
Why it matters: Widening bands can signal the start of a new trend
5. Price_SMA_50_Ratio (0.158)
Direction: BULLISH ↑
Interpretation: When price is ABOVE the 50-day MA → UP prediction
What to monitor: Current price ÷ SMA_50
Buy signal: When ratio > 1.0 (price is above the 50-day average)
Why it matters: Price above moving averages indicates uptrend
6. Momentum_21D (21-day Momentum) (0.152)
Direction: BULLISH ↑
Interpretation: Positive 21-day momentum → UP prediction
What to monitor: 21-day rate of change
Buy signal: When momentum is positive and increasing
Why it matters: Positive momentum suggests continuation
7. Stoch_K (Stochastic Oscillator) (0.142)
Direction: BULLISH ↑
Interpretation: Higher Stochastic K → UP prediction
What to monitor: Stochastic oscillator (0-100 scale)
Buy signal: When Stoch_K is rising from oversold (<20) or in mid-range (40-60)
Why it matters: Measures momentum and overbought/oversold conditions