For Immediate Release

Contact: D. Linn Wiley, President and CEO (909) 980-4030

CVB Financial Corp. Joins Nasdaq Financial-100 Index

Ontario, CA, July 31, 2001-CVB Financial Corp. (Nasdaq:CVBF) announced that it became a component of the Nasdaq Financial-100 Indexâ on July 25, 2001. CVB Financial Corp. joined the Nasdaq National Market on June 19, 2001, after delisting with American Stock Exchange. CVB Financial replaces National Commerce Financial Corporation (Nasdaq:NCBC) which is delisting from The Nasdaq Stock Market.

CVB Financial Corp. has 27,750,000 shares outstanding. The market value of $19.00 a share on July 27, 2001 represented a market capitalization of $527.3 million for the Company.

CVB Financial Corp reported total assets of $2.33 billion as of June 30, 2001. This represented an increase of $216.8 million, or 10.3%, over the $2.11 billion in assets reported on June 30, 2000. Total deposits were $1.65 billion. This was up $175.9 million, or 11.91%, from $1.48 billion last year. Gross loans and leases were $1.07 billion as of June 30, 2001. This represented an increase of $76.3 million from the $991.4 million in gross loans and leases on June 30, 2000. Trust assets were $993.6 million on June 30, 2001.

Net income for the six months ending June 30, 2001 was $18.5 million. This is an increase of $2.2 million, or 13.2%, when compared with net earnings of $16.3 million for the first half of 2000. The net income of $18.5 million produced a return on beginning equity of 19.73%, a return on average equity of 18.65% and a return on average assets of 1.63%.

CVB Financial Corp. is the parent company of Citizens Business Bank. Citizens Business Bank is the largest bank headquartered in the Inland Empire Region of Southern California. It serves 23 cities with 30 branches in Los Angeles, Orange, Riverside and San Bernardino Counties.

Shares of CVB Financial Corp. common stock are listed on the NASDAQ under the ticker symbol of CVBF. Information regarding CVB Financial (CVBF) common stock can be obtained through:

Frank Doyle - Keefe, Bruyette & Wood, (212) 323-8450

Lisa Gallo or Dave Bonaccorso - Hoefer & Arnett, Inc., (415) 362-7211

Greg Madding - Dain Rauscher, Inc., (415) 633-8576

For more information about CVB Financial Corp. and Citizens Business Bank visit our Citizens Business Bank web site at www.cbbank.com.