The $3.4 billion price tag put on MLC-owner Insignia Financial could be squeezed lower after one of its private equity suitors pulled the pin on its bid, leaving the little-known Wall Street outfit CC Capital as the last credible buyer for the 179-year-old firm.

Bain Capital cited the “macro uncertainty caused by the volatility in global markets” as the primary reason it withdrew a $5 per share offer for Insignia on Wednesday, as investors and analysts said a white-knuckle month for markets had burnt out funding lines for big-name buyers.