def extract_metrics(results):
    """Extract performance metrics from FINSABER results"""
    metrics = {}
    
    for ticker, result in results.items():
        if not result or 'analyzers' not in result:
            continue
            
        analyzers = result['analyzers']
        
        # Extract metrics
        total_return = analyzers.get('returns', {}).get('rtot', 0.0) * 100
        sharpe = analyzers.get('sharpe', {}).get('sharperatio', 0.0)
        max_dd = abs(analyzers.get('drawdown', {}).get('max', {}).get('drawdown', 0.0)) * 100
        
        metrics[ticker] = {
            'total_return': total_return,
            'sharpe_ratio': sharpe,
            'max_drawdown': max_dd
        }
    
    return metrics