Skip to content
Foundation · Lesson 4

Position Sizing: The Math That Saves You

Kelly, fixed fractional, volatility-adjusted — four position sizing methods, ranked by how likely they are to keep you solvent through a losing streak.

Author

David Chen, CFA

Peer reviewer

Somchai Wattana, CMT

15 min readPublished March 25, 2026Reviewed April 12, 2026