AMVESTORS FINANCIAL <AVFC> SETS STOCK DIVIDEND AmVestors Financial Corp said it declared a 25 pct stock dividend payable June 19 to holders of record June one, subject to an increase in authorized shares. It said shareholders will vote at the April 23 annual meeting to increase authorized shares to 25 mln from 10 mln. The company also said it plans to pay an initial quarterly dividend of five cts a share on the shares.