- Compare (free): multi-source overlay chart, Base 100 / Return % / Value modes,
chip selector, reactive to time range filter
- What If (premium): allocation simulator with sliders per source, dual-line chart
actual vs simulated indexed to 100, orange warning when weights ≠ 100%
- Period vs Period (free): date-picker-driven comparison of any two custom periods,
return % normalized from month 1 = 0%, color-coded legend with period labels
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>