Nasdaq OMX Group has set aside cash to reimburse firms harmed in Facebook’s botched market debut last May, and to possibly settle a regulatory probe into the matter, denting the exchange operator’s first quarter profits.

Nasdaq reported US$ 62 million (HK$ 481.4 million) of expenses for the reimbursement plan, and it has allocated US$ 10 million (HK$ 77.6 million) toward the US Securities and Exchange Commission probe into the problems surrounding Facebook’s initial public offering.