CHANDAN KHANNA/AFP via Getty ImagesHurricane Milton's impact on Florida won't cause major losses for catastrophe bond investors, portfolio managers say.Catastrophe bonds help insurers transfer weather event risks to investors.Insurance companies still face significant losses, but cat bond investors aren't eyeing the worst-case scenario.The impact of Hurricane Milton on Florida is unlikely to trigger massive losses for catastrophe bond investors.The fixed-income securities allow insurers and reinsurers to transfer risks associated with major weather events to investors.Investors who buy cat bonds can see big returns if it's a relatively quiet year for hurricanes and other natural disasters and damage from any event is mild.Earlier this week, some cat bond portfolio managers were expecting big potential losses due to the back-to-back storm systems of hurricanes Helene and Milton.But after Milton weakened slightly and tracked just south of Tampa when it hit Florida's west coast, it didn't deliver a massive storm surge to the area predicted in the worst-case scenarios.