Changes in the listing rules have diminished the advantage of obtaining a USM quotation.

The Stock Exchange plans to publish revised listing rules in May 1993 so that they become effective in July 1993.

More stringent listing rules are currently being prepared.

And all say they sought the listing for reasons unrelated to the "cold call" rule.

The 1978 listing rule included predation by the introduced European snails, Discus rotundatus and Oxychilus spp.

Over time the AASE established uniform listing rules, broker rules, and commission rates.

London, which traditionally has had stricter listing rules than Amsterdam's, even changed the interpretation of those rules in October to be more competitive.

The exchange targeted its listing rules at small to medium sized businesses and offered lower listing fees than the Australian Stock Exchange.

These companies will have to leave the New York Stock Exchange if the listing rule is not changed.

The listing rules for junior companies are lax, and there have been many companies that traded for far more than they turned out to be worth.