Guggenheim Partners is working with regulators as they probe a business accounting issue at one of its subsidiaries, according to [PERSON_NAME], chief investment officer of the firm’s asset-management business. "We have been very open with regulators and very cooperative in their investigation and we will continue to do so," [PERSON_NAME] said in a Bloomberg Television interview Monday. "We’ve engaged with our auditors and we feel that the accounting treatment was appropriate." Guggenheim Partners is cooperating with regulators investigating an accounting matter at a subsidiary, with [PERSON_NAME] stating the treatment was appropriate and emphasizing ongoing transparency and cooperation.