OCBC Securities started business in 1986.

In 2001, Oversea-Chinese Banking Corporation Limited ("OCBC Bank") acquired UBS Warburg & Associates (Singapore) Private Limited through its wholly owned subsidiary, Provident Securities Private Limited ("Provident").  Provident was then the holding company of OCBC Securities.   The acquisition propelled OCBC Securities into the ranks of Singapore's leading stock broking firms.
 
When OCBC Bank acquired Keppel Capital Holdings in 2001, the business of Keppel Securities Pte Ltd was transferred to OCBC Securities by means of a Scheme of Arrangement and Amalgamation under Sections 210 and 212 of the Companies Act, Cap 50 in 2002.

In 2003, OCBC Securities expanded its product to include commodity futures, financial futures broking and leveraged foreign exchange trading when it acquired the business of OCBC Bullion & Futures Pte Ltd. 

OCBC Securities expanded overseas network when it reactivated OCBC Securities (HK) Limited in 2008.