NASB Financial, Inc. NEWS RELEASE Contact: Rhonda Nyhus NASB Financial, Inc. 12498 South 71 Highway Grandview, MO 64030 Phone (816) 765-2200 FOR IMMEDIATE RELEASE: NASB Financial, Inc. Announces Financial Results Grandview, Missouri (August 5, 2009) - NASB Financial, Inc. (NASDAQ: NASB) announced today net income for the quarter ended June 30, 2009, of $4,242,000 or $0.54 per share. This compares to net income of $4,731,000 or $0.60 per share for the quarter ended March 31, 2009, and compares to net income of $3,610,000 or $0.46 per share for the quarter ended June 30, 2008. Net income for the nine months ended June 30, 2009, was $12,621,000 or $1.60 per share, compared to net income of $8,285,000 or $1.05 per share for the nine months ended June 30, 2008. Net income for the quarter and nine months ended June 30, 2009, was diminished by an increase in the provision for loan losses from the same periods in the prior year. In addition, non-interest income and non- interest expense for the quarter and nine months ended June 30, 2009, increased from the comparative prior periods, primarily due to the origination and subsequent sale of record volumes of residential loans within the Company's mortgage banking segment. NASB Financial, Inc. is a unitary thrift holding company for North American Savings Bank, F.S.B. ("North American" or the "Bank"). North American operates six offices in greater Kansas City, Missouri and others in Harrisonville, St. Joseph, and Excelsior Springs, Missouri. The Bank also has loan origination offices in Lee's Summit and Springfield, Missouri as well as Overland Park, Kansas. (Financial Highlights Schedule Attached) <page> <Table> <Caption> NASB Financial, Inc. Financial Highlights (Dollars in thousands, except per share data) Three months ended Nine months ended ------------------------------------- ----------------------- 6/30/09 3/31/09 6/30/08 6/30/09 6/30/08 ------------------------------------- ----------------------- EARNINGS DATA: Net interest income $ 12,188 11,006 9,858 33,776 28,999 Provision for loan losses 4,000 1,000 1,600 5,250 3,000 Non-interest income 12,742 9,230 6,772 27,171 14,450 Non-interest expense 14,032 11,544 9,908 35,175 27,691 Income tax expense 2,656 2,961 1,512 7,901 4,473 ------- ------- ------- ------- ------- Net income $ 4,242 4,731 3,610 12,621 8,285 ======= ======= ======= ======= ======== FINANCIAL CONDITION DATA: Total assets $ 1,615,130 1,549,748 1,571,172 1,615,130 1,571,172 Total loans and mortgage-backed and related securities 1,425,905 1,408,702 1,450,957 1,425,905 1,450,957 Customer and brokered deposit accounts 940,175 866,950 831,534 940,175 831,534 Stockholders' equity 161,937 157,689 152,771 161,937 152,771 FINANCIAL RATIOS AND PER SHARE DATA: Book value per share $ 20.58 20.04 19.42 20.58 19.42 Earnings per share 0.54 0.60 0.46 1.60 1.05 Cash dividends paid per share 0.225 0.225 0.225 0.675 0.675 Return on assets (annualized net income divided by total average assets) 1.07% 1.23% 0.93% 1.07% 0.72% Return on equity (annualized net income divided by average stockholders' equity) 10.62% 12.13% 9.50% 10.71% 7.31% Weighted average shares outstanding 7,867,614 7,867,614 7,867,614 7,867,614 7,867,614 </Table> <Page>