(f) Study, report and recommendations by Commission on trading
in unlisted securities and authority for making regulations for
continuance and existence of unlisted trading privileges... 39, 124
18. Periodical and Other Reports...
(a) Filing by issuers of information, documents and reports with
exchanges and Commission.........
(b) Reports to Federal Reserve Board by brokers, dealers or other
person extending credit; inspection by Board...
18. Liability for Misleading Statements
(3) Suspension or withdrawal of officer or member of exchange.
(4) Suspension of trading in security-