Online gambling technology provider Playtech has abandoned its planned takeovers of financial trading operators Plus500 and Ava Trade due to its inability to resolve regulatory concerns.

Playtech announced this summer that it would spend £460m to acquire the UK-listed Plus500, one of a flurry of recent deals in which Playtech sought to expand its forex and spread betting presence. But Playtech announced Monday that the acquisition “will not be proceeding as planned.”

The acquisition required the approval of both the Cyprus Securities Exchange Commission and the UK’s Financial Conduct Authority (FCA). The former had already given its blessing but the FCA expressed “certain concerns” and Playtech said Monday that “the steps being proposed to address these concerns will not sufficiently satisfy the FCA” by the Dec. 31 deadline for closing the acquisition.

Playtech said the deal would have no financial impact on its performance but its share price fell 8% following Monday’s announcement. Plus500 shares fell by one-fifth before rallying to close out Monday’s trading down 6.5%. Playtech says it has no immediate plans for what to do with its existing 9.9% stake in Plus500.