The SEC accused GLG of overvaluing the firm from 2008 to 2010, which resulted in investors paying excessive management and administration fees, and failing to investigate when concerns were raised about the inflated price.

According to the SEC, as a result of internal control failures the GLG Emerging Markets Special Assets 1 Fund paid $210 million for a 25 per cent stake in an unnamed emerging market coal mining company.

The SEC said that after the fund's independent pricing committee valued the stake at $425 million, GLG employees received information on a number of occasions calling this amount into question.

The US regulator said that confusion about who should address these issues and inadequate policies and procedures meant that the pricing committee failed to receive this information in a timely manner or even at all. 

As part of the settlement, GLG agreed to pay $7.7 million to cover fee charges, civil penalties totalling $750,000 and $438,000 in interest charges.

The firm has also agreed hire an independent third party consultant to review procedures for the valuation of assets. GLG did not admit or deny any wrongdoing.