Marshall & Ilsley Corporation to Release Second Quarter 2004 Earnings on Tuesday, July 13, 2004

Marshall & Ilsley Corporation to Release Second Quarter 2004
Earnings on Tuesday, July 13, 2004 


MILWAUKEE, June 30  /PRNewswire-FirstCall/ -- Marshall & Ilsley Corporation
today announced it will release its second quarter 2004 earnings on Tuesday,
July 13, 2004, at 8 a.m. (CDT). A conference call will be held at 11 a.m.
(CDT). Individuals interested in listening should call 1-800-211-3767 and ask
for M&I's quarterly earnings release conference call. After the call is over, a
replay of the call will be available through 5 p.m. July 20, by calling
1-800-839-6713 and entering passcode 644 26 81.

Supplemental financial information referenced in the conference call and the
text of the second quarter news release can be found at (
http://www.micorp.com/ ), Investor Relations, after 8 a.m. July 13.

Marshall & Ilsley Corporation (NYSE:MI) is a diversified financial services
corporation headquartered in Milwaukee, Wis., with $35.5 billion in assets.
Founded in 1847, M&I Marshall & Ilsley Bank has the largest banking presence in
Wisconsin with 199 offices throughout the state. In addition, M&I has 31
locations throughout Arizona; 11 offices in metropolitan Minneapolis/St. Paul,
Minn.; and, locations in Duluth, Minn.; Las Vegas, Nev.; and, Naples and Bonita
Springs, Fla. M&I's Southwest Bank affiliate has six offices in the St. Louis
area, and one office in Belleville, Ill. Metavante Corporation, Marshall &
Ilsley Corporation's wholly owned technology subsidiary, provides virtually all
of the technology an organization needs to offer financial services. M&I also
provides trust and investment management, equipment leasing, mortgage banking,
asset-based lending, financial planning, investments and insurance services
from offices throughout the country and on the Internet (
http://www.mibank.com/ or http://www.micorp.com/ ). M&I's customer-based
approach, internal growth and strategic acquisitions have made M&I a nationally
recognized leader in the financial services industry. 

DATASOURCE: Marshall & Ilsley Corporation



CONTACT:  Mark Furlong, executive vice president and chief financial

officer, [phone], or Don Wilson, senior vice president, corporate

treasurer, [phone], both of Marshall & Ilsley Corporation



Web site:  http://www.micorp.com/

http://www.mibank.com/ 

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