risks to financial stability have risen “significantly” amid the recent turmoil in the banking sector the international monetary fund’s economists said on tuesday sounding a warning about hidden trouble not just at banks but also nonbank financial intermediaries for several years the multilateral organization has warned in its global financial stability report of the potential fallout of interest rate rises after an era of historically low rates on banks and nonbank financial intermediaries those have come to pass with the trouble at credit suisse ticker cs and failures of silicon valley bank and signature bank in the us