Mortgage Guaranty Insurance Corp. wrote $1.3 billion in new business in August and decreased the number of delinquent loans in its pool of insured mortgages to 183,338.

The mortgage insurance arm of MGIC Investment Corp. ($2.36 -0.02%) began the month of August with 185,093 delinquent loans and 14,587 new notices were filed on delinquent loans insured by the company last month.

The Milwaukee-based firm said 11,719 delinquent loans cured in August with 4,047 less paids and 576 denials and rescissions.

Mortgage insurers, including MGIC, experienced a rough month with stock prices falling rapidly in the early part of August.

In the past two weeks, MGIC's stock value experienced a 20% bounce in one day after the firm's top executives loaded up on shares of stock. Still, MGIC is down nearly 80% on the year.

Write to: Kerri Panchuk.