SECURITIES

American Exchange Disciplines 3 Individuals: The Amex said the actions, which included a Southern California man, resulted from violations of securities laws or exchange rules. Thomas Duckworth of Torrance, a former employee of Dean Witter Reynolds Inc., was fined $5,000 and barred for one year. The Amex said Duckworth recommended unsuitable index options transactions for a customer and fraudulently misrepresented a customer’s financial status and investment experience on a new account form. It also said he churned the account to generate commissions.