Dr. Okongwu has been retained in over 200 matters, directing projects in the areas of economics, finance, and valuation. He is an expert on various securities and financial derivatives, and testifies and consults on the valuation, trading, and risk characteristics of numerous derivative, fixed income and equity products. He has been retained by financial institutions in internal investigations, as well as regulatory investigations by the SEC, CFTC, DOJ, FCA and FINRA. Dr. Okongwu has consulted on the termination of OTC derivative positions, on the forced liquidation of securities portfolios, and on structured finance securities. He has given testimony on allegations of market abuse the alleged and mis-selling of financial products, as well as on the effects on investors of the mis-marking of fund portfolios.
Dr. Okongwu has provided expert evidence in venues, including UK High Court, Southwark Crown Court (UK), High Court of Ireland, Grand Court of the Cayman Islands, and US federal, state, and bankruptcy courts. He has also testified in international arbitrations in various forums, including in ICC, ICSID, UNCITRAL, SCC, and ad hoc arbitrations, as well as in US domestic arbitration forums, including FINRA arbitrations.