WASHINGTON                                            H.F. AHMANSON
     MUTUAL                                                & COMPANY



Media Contact:          Washington Mutual             H.F. Ahmanson
                        (California)                  Mary Trigg
                        Tim McGarry                   626-814-7922
                        818-775-3658

                        Washington Mutual
                        (Media outside of California)
                        Libby Hutchinson
                        206-461-2484

Investor Contact:       Washington Mutual             H.F. Ahmanson
                        Doug Wisdorf                  Steve Swartz
                        206-461-3805                  626-814-7986

                        
For Washington Mutual
and Ahmanson:           Abernathy MacGregor Frank
                        Mike Pascale (212) 371-5999               March 17, 1998
                        Ian Campbell (213) 630-6550        FOR IMMEDIATE RELEASE

                      WASHINGTON MUTUAL, AHMANSON TO MERGER

             ENHANCES GROWTH POTENTIAL; SOLIDIFIES NATIONAL CONSUMER
                      AND SMALL BUSINESS BANKING FRANCHISE

     SEATTLE AND IRWINDALE,  CA -- Washington  Mutual,  Inc. (Nasdaq:  WAMU) and
H.F.  Ahmanson & Company  (NYSE:  AHM) today  announced  that they have signed a
definitive  agreement for  Washington  Mutual to acquire  Ahmanson in a tax-free
exchange of common  stock.  The merger will create the nation's  seventh-largest
banking company based on total 1997 year-end assets of nearly $150 billion.  The
combined  company will have deposits of $86.3  billion,  and will serve nearly 6
million  households  through more than 2,000  consumer  banking  branches,  loan
offices,   consumer   finance   locations  and  commercial   banking   branches.
Additionally,  the combined company will be the nation's leading adjustable-rate
mortgage lender and will further strengthen its position as the West



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Coast's number one mortgage lender. The transaction  expands Washington Mutual's
consumer banking reach into Texas where Ahmanson currently operates more than 40
branches.

     Terms of the transaction  call for the tax-free  exchange of 1.12 shares of
Washington Mutual common stock for each of Ahmanson's outstanding common shares.
This ratio  represents  a price of $80.36 per share for Ahmanson  common  stock,
based on Washington Mutual's closing price on March 16, 1998. At that price, the
transaction  would  have an  initial  value of $9.9  billion,  and the  combined
company would have a market capitalization of over $27 billion.

     "With this  transaction,  we are creating a premier  institution  that will
have the size and scope of the largest banks yet continue its focus on consumers
and small business.  It further distinguishes our company from the competition,"
said  Kerry  Killinger,  chairman,  president  and chief  executive  officer  of
Washington Mutual. "Our combination strengthens Washington Mutual's platform for
high growth,  creating  additional  shareholder  value and enabling us to better
serve our  communities.  We look  forward to adding the many  talented  Ahmanson
employees to the already strong team at Washington Mutual."

     "The  combination  of our two  companies  will  create  a West  Coast-based
financial institution  competitive with the nation's largest banking companies,"
said Charles R. Rinehart, chairman and chief executive officer of Ahmanson. "The
people of Ahmanson and Home Savings have  substantially  transformed our company
over the last several years,  in order to meet our  customers'  needs in today's
competitive  banking   environment.   I  am  especially  proud  of  them.  Their
extraordinary  efforts  have been a major factor in bringing us to this point in
our  history.   Because  of  its  strong   balance   sheet,   its  tradition  of
consumer-friendly  service,  and its well known commitment to community needs, I
believe   Washington   Mutual  is  clearly  the  best  partner  for   Ahmanson's
shareholders, customers, and the communities we have served for many years."

ADDITIONAL TERMS OF THE TRANSACTION

     The  definitive  agreement has been  unanimously  approved by the boards of
directors of Washington  Mutual and Ahmanson.  The transaction is subject to the
approval  of the  shareholders  of both  companies  and  the  Office  of  Thrift
Supervision. The transaction will be structured as a tax-free exchange, and will
be accounted for as a pooling of interests. Closing is expected to take



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place late in the third quarter of 1998. Any proceeds from  Ahmanson's  goodwill
lawsuit will be shared by the shareholders of the combined company.

     As  part  of the  agreement,  Ahmanson  has  agreed  to pay a $275  million
break-up fee to Washington  Mutual if the merger  agreement is terminated  under
certain  circumstances.  The break-up  fee is payable  either in cash or through
exercise of an option to purchase up to 19.9 percent of Ahmanson's common stock.
In  addition,  as  part  of the  transaction,  Washington  Mutual  will  incur a
transaction-related   charge  of  $370   million   ($254   million   after-tax).
Administration and operations areas will be combined by the summer of 1999.

     Three current Ahmanson  directors will join the Washington  Mutual board of
directors  upon  completion  of the  merger,  increasing  to 19 the size of that
board.  Killinger  will  continue in his present role in the  combined  company,
which will be called Washington Mutual, Inc.

STRONG CALIFORNIA PRESENCE

     "With this transaction,  we have significantly strengthened our competitive
position in California,  the nation's most populous state," said Killinger. "The
combination  of the Home  Savings,  Great  Western,  American  Savings and Coast
Savings  franchises  makes  California  integral to Washington  Mutual's future.
Consequently,  we intend to continue to be closely and personally  involved with
our  California  communities  as we  are in all  of  our  other  markets,  while
continuing to offer consumer banking and home mortgage expertise to better serve
the financial needs of low- and moderate-income families and individuals."

     Following   completion  of  the  merger,   Washington  Mutual  will  become
California's  second-largest  depository  institution  with a 17 percent  market
share. It will serve the state with 700 financial centers (retail branches). The
company will be among the top three institutions, based on deposit market share,
in every  major  metropolitan  market  in  California.  The  combined  company's
California  operations  will be managed  from its  current  Chatsworth,  Irvine,
Stockton locations and from Washington Mutual's headquarters in Seattle.

INTEGRATION

     Washington   Mutual  and  Ahmanson  will  immediately  begin  planning  the
integration of the two  companies'  operations.  "A smooth  integration of Great
Western remains our immediate priority



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for the first half of 1998. Once that  integration  has been completed,  we will
turn our focus on the integration of Ahmanson,"  said Killinger.  "Conversion of
Ahmanson's systems will occur in two phases: Texas in the fourth quarter of 1998
and California in the second quarter of 1999."

     "Having  completed  21 mergers and  acquisitions  in the last  decade,  our
company  has  successfully  managed  multiple  integrations  in the past,"  said
Killinger. "Our recent integration of American Savings, completed last July, was
conducted while the planning for the conversion of Great Western was underway."

     "While in a transaction of this  magnitude it is inevitable  that positions
will be  eliminated,  the actual  number of job losses  should be  significantly
lessened as a result of strong growth and natural  attrition,"  Killinger  said.
"The  company  anticipates  that  approximately  3,000-3,500  positions  will be
consolidated as a result of the merger,  due to both branch  consolidations  and
redundant administrative functions.

     Washington  Mutual  anticipates  that  between  160-170  branches  will  be
consolidated as a result of the transaction. In those branches, the company will
give   special   consideration   to  the  needs  of  low-  and   moderate-income
communities," Killinger said.

     The company  projects  cost savings  equal to  approximately  40 percent of
Ahmanson's existing cost structure.  Annual savings of $330 million are expected
to be  realized  by  2000.  Washington  Mutual  expects  the  transaction  to be
accretive to earnings per share in the year 2000.

COMMITMENT TO THE COMMUNITY

     Washington   Mutual's   banking   subsidiaries   and   Ahmanson's   banking
subsidiaries  have  "outstanding"  ratings under the Community  Reinvestment Act
(CRA).

     Throughout  its  history,  Washington  Mutual  has  demonstrated  a  strong
commitment  to  serving  the  financial  needs of its local  communities,"  said
Killinger.   "In   consultation   with  a  wide   variety   of   community-based
organizations,  we will listen carefully to the needs of their constituents.  We
are seeking to expand our  relationships as our presence in California and other
areas  grows.  We will  continue  to strive  to be the  leader  in  meeting  the
financial requirements of low to moderate income individuals and families."




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     "At a time when large bank mergers have sometimes come under attack for the
depersonalization  of customer service and civic involvement,  Washington Mutual
has  consciously  built a company that  combines all the  conveniences  of large
commercial  banks  with  the  highly  personalized  services  that  reflect  the
communities  it serves,"  Killinger  continued.  "As we go forward  with our new
partners at Ahmanson,  we intend to build on the  commitments  to community that
have grown out of our prior expansions."

     With a  history  dating  back to 1889,  Washington  Mutual  is a  financial
services  company that provides a  diversified  line of products and services to
consumers  and small- to mid-sized  businesses.  At Dec.  31,  1997,  Washington
Mutual and its  subsidiaries  had assets of $97.0 billion.  The company operates
more than 1,600 offices throughout the nation.

     Ahmanson,  with more than $52.5 billion in assets, is the parent company of
Home Savings of America, one of the nation's largest  full-service  consumer and
small business banks.

                                       ###

EDITOR'S  NOTE:  Washington  Mutual's  press releases are available at no charge
through the News On Demand Plus System.  For a menu of  Washington  Mutual press
releases  or to  retrieve a specific  release,  call  1-(800)  329-6236.  On the
Internet,        press       releases       may       be       accessed       at
http://www.businesswire.com/cnn/wamu.htm.

This press release contains forward-looking statements regarding the benefits of
the merger of  Washington  Mutual and  Ahmanson,  including  cost  savings to be
realized,  earnings  accretion,  transaction  charges and  additional  loan-loss
reserves and revenue  enhancement  opportunities  following  the merger.  Actual
results may vary from the forward-looking  statements as described in Washington
Mutual's  Current Report on Form 8-K dated March 17, 1998, to which reference is
made. These factors include without limitation possible delays in integration of
Ahmanson's operations into Washington Mutual's,  competitive factors which could
adversely affect consumer banking strategy and general economic conditions which
could negatively  impact the volume of loan  originations and the amount of loan
losses.



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                         Washington Mutual/H.F. Ahmanson
                                   At-A-Glance

December  31, 1997 figures (all dollar  figures in  thousands,  except per share
prices). Financial ratios reflect year-to-date figures. Ahmanson figures reflect
the  acquisition of Coast Savings.  Pro Forma numbers  include  adjustments  for
transaction charges and other pro forma adjustments.




                                                  Washington           Ahmanson             Pro Forma
                                                    Mutual
                                                  ----------           ---------            ---------

                                                                                   
Total Assets                                      $96,981.1            $52,511.2            $149,176.3
Total Deposits                                    $50,986.0            $35,386.6            $86,372.6
Total Loans                                       $67,140.2            $36,405.8            $103,546.0
Net Income                                        $481.8*              $413.8               $895.6
Nonperforming Assets                              $806.6               $694.6               $1,501.2
Nonperforming Assets/Assets                       0.83%                1.32%                1.01%
Reserves                                          $670.5               $484.3               $1,154.8
Reserves/Nonperforming Loans                      112%                 99%                  106%
Stockholders' Equity/Assets                       5.47%                5.95%                5.47%
Book Value Per Share                              $20.80               $25.87               $20.91
Closing Stock Price Per Share (3/16/98)           $71.75               $65.50
Market Capitalization (billions) (3/16/98)        $17.9                $7.9                 $27.6
Retail Branches                                   892                  409                  1,252
Loan Offices                                      187                  120                  307
Commercial Bank Offices                           54                   0                    54
Consumer Finance Offices                          502                  0                    502
Total ATM Locations                               +1,000               541                  +1,541
Total Banking Locations                           2,635                1,070                3,705
Households Served (mm)                            3.9                  2.0                  5.9
Employees                                         22,000               9,380                31,380

<FN>
* includes one-time restructuring and other charges associated with the Great Western transaction
</FN>




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