He previously held senior roles at Nomura Securities Co, the brokerage unit of Nomura Holdings Inc. After he left Nomura, Saito served as CEO of the Industrial Revitalization Corporation of Japan, a now-defunct state-backed turnaround fund that invested in troubled companies.
Utilize the input text as a context reference, choose the right relationship between 'Nomura Securities' and 'Nomura Holdings' from the options.
Options: headquarters location, owned by, parent organization, platform