This course explains Concentration Risk in Collateral Portfolio and how lenders assess exposure concentration across issuers, sectors, or correlated securities within pledged portfolios in Loan Against Shares (LAS). It covers how concentration is measured, the exposure limits applied, and the reporting and de-concentration actions required when limits are breached. The course also highlights how concentration monitoring supports ongoing portfolio surveillance and informs escalation decisions such as watch-list placement, field action, or credit committee review.