(NEW YORK — March 4, 2009) —       ACI Worldwide, Inc. (NASDAQ: ACIW) announced today that it will hold an Investor Day Webcast on Tuesday March 10, 2009.  Presentations by ACI’s management team are scheduled to begin at 8:15 a.m. CDT.
The live Webcast will be available on the ACI website at www.aciworldwide.com/investorrelations/. 

An archived replay of the Webcast and presentation will also be available on the ACI website at www.aciworldwide.com/investorrelations/ approximately one hour after the event adjourns.

ACI Worldwide will also be presenting at the Wedbush Morgan Management Access Conference in New York City on Thursday March 12, 2009 from 2:15 p.m EDT to 2:55 p.m. EDT. This presentation will also be available via live Webcast on the ACI website at www.aciworldwide.com/investorrelations/