Traiana | 6,164 followers on LinkedIn. Traiana is now part of OSTTRA. Traiana operates the leading market infrastructure for post-trade processing and risk management across asset classes and provides client service and risk management technology across the financial sector. Global banks, broker/dealers, buy-side firms and trading platforms use our cross-asset class services to automate risk management and pre-trade/post-trade processing of listed and over the counter transactions.