STONE <STO> SPLITS STOCK, RAISES PAYOUT Stone Container Corp said it is splitting its common stock 2-for-1 and increasing its dividend 33-1/3 pct. The dividend of 20 cts a share, an increase of five cts over the prior 15 cts a share on pre-split shares, is payable June 12 to holders of record May 22. The stock split also is payable June 12 to holders of record May 22.