Panicked KiwiSaver investors may have cost themselves hundreds of thousands in savings.

A dive in global sharemarkets saw KiwiSaver value drop by $1.4 billion in March.

Masses of investors were quick to switch from share-heavy growth funds to cash or conservative funds.

Amanda Morrall talks to Andrew Dickens about the real cost of knee-jerk investing and how to go forward. 

Listen to full interview here.