JNK Securities Corporation | 566 followers on LinkedIn. JNK Securities Corp. is a NYC based broker‐dealer, founded in 1993, execution-only trading Firm with direct market access to the listed & OTC markets. JNK also offers Thought Leadership Events and exclusive 3rd Party industry focused research to our Institutional Investor clients. ROUNDTABLES & EVENTS JNK has become the leading host of industry and theme-based roundtable dinners, lunches and full-day events.