Migration from empyrical

Import Changes

# Before (empyrical)
from empyrical import sharpe_ratio, max_drawdown, alpha_beta

# After (fincore) — drop-in replacement
from fincore import sharpe_ratio, max_drawdown, alpha_beta

New Features in fincore

Feature	empyrical	fincore
Core Metrics	✅	✅
Lazy Loading	❌	✅
AnalysisContext	❌	✅
RollingEngine	❌	✅
Data Providers	❌	✅
Portfolio Optimization	❌	✅
Pluggable Viz	❌	✅
Python 3.13	❌	✅

Migration Steps

1. Replace empyrical with fincore>=1.0.0 in requirements.txt
2. Find-and-replace: from empyrical import → from fincore import
3. Run your existing tests — most should work without changes
4. Gradually adopt AnalysisContext for better performance