Power Integrations ( $POWI ) Stock Falls -11.9% Over 30 Days as Valuation Pressures Mount (See the latest news for any ticker on Tickeron.) Power Integrations shares fell roughly 11.9% over the last 30 days, declining from about $55.79 to around $49.15. The pullback extends a multi-month slide even though the company beat Wall Street estimates for its second quarter. $KLIC $VECO $ACLS $ENTG $COHU $PLAB $IPGP $FORM