a total of 17 different securities -lrb- shares in 9 companies , 3 state bonds , 2 bank bonds , 2 participation certificates , and one company bond -rrb- were registered on the bcpb 's listed market and another 499 securities -lrb- shares in 496 companies and 3 investment funds -rrb- on the unlisted market at the end of 1993 .