GROUP BOOSTS GELCO <GEL> STAKE TO 8.2 PCT An investor group including New York-based Mutual Shares Corp and Mutual Qualified Income Fund Inc told the Securities and Exchange Commission it raised its stake in Gelco Corp common stock to 575,859 shares or 8.2 pct of the total outstanding. The group said its most recent purchases included 241,000 shares bought between January 21 and March 10. The group said it purchased the shares for investment purposes.