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 6, 2010) - NASB Financial, Inc. (NASDAQ: NASB) announced today a net loss for the quarter ended June 30, 2010, of $460,000 or $(0.06) per share. This compares to net income of $3,219,000 or $0.41 per share for the quarter ended March 31, 2010, and compares to net income of $4,242,000 or $0.54 per share for the quarter ended June 30, 2009. The Company recorded a provision for loan losses of $11.5 million during the quarter ended June 30, 2010. This compares to a provision for loan losses of $5.0 million during the quarter ended March 31, 2010, and $4.0 million during the quarter ended June 30, 2009. Net income for the nine months ended June 30, 2010, was $4,088,000 or $0.52 per share, compared to net income of $12,621,000 or $1.60 per share for the nine months ended June 30, 2009. The Company recorded a provision for loan losses of $25.5 million during the nine months ended June 30, 2010. This compares to a provision for loan losses of $5.25 million during the nine months ended June 30, 2009. Management analyzes the adequacy of the allowance for loan losses on a quarterly basis. The provision for loan losses can fluctuate based upon management's assessment of changes in economic conditions, the level of classified assets, and the amount of loan charge-offs and recoveries during the period. 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 ------------------------------------- ----------------------- 6/30/10 3/31/10 6/30/09 6/30/10 6/30/09 ------------------------------------- ----------------------- EARNINGS DATA: Net interest income $ 13,930 13,119 12,188 40,854 33,776 Provision for loan losses 11,500 5,000 4,000 25,500 5,250 Non-interest income 11,522 9,314 12,742 31,036 27,171 Non-interest expense 14,909 12,320 14,032 40,886 35,175 Income tax expense (benefit) (497) 1,894 2,656 1,416 7,901 ------- ------- ------- ------- ------- Net income (loss) $ (460) 3,219 4,242 4,088 12,621 ======= ======= ======= ======= ======== FINANCIAL CONDITION DATA: Total assets $ 1,415,928 1,460,275 1,615,130 1,415,928 1,615,130 Total loans and mortgage-backed and related securities 1,288,968 1,322,236 1,425,905 1,288,968 1,425,905 Customer and brokered deposit accounts 859,461 869,268 940,175 859,461 940,175 Stockholders' equity 165,321 165,986 161,937 165,321 161,937 FINANCIAL RATIOS AND PER SHARE DATA: Book value per share $ 21.01 21.10 20.58 21.01 20.58 Earnings per share (0.06) 0.41 0.54 0.52 1.60 Cash dividends paid per share 0.00 0.225 0.225 0.45 0.675 Return on assets (annualized net income divided by total average assets) (0.13)% 0.86% 1.07% 0.37% 1.07% Return on equity (annualized net income divided by average stockholders' equity) (1.11)% 7.78% 10.62% 3.29% 10.71% Weighted average shares outstanding 7,867,614 7,867,614 7,867,614 7,867,614 7,867,614 </Table> <Page>