U.S. primary insurer and global re/insurer Liberty Mutual has completed another collateralised reinsurance sidecar placement for 2020, with a $50 million slice of the arrangement now listed on the BSX.

Liberty Mutual has become a regular sponsor of collateralised reinsurance sidecar transactions, using its Limestone Re vehicle to access third-party sources of capital since late 2016.

The insurer has returned each year with transactions, as it brings capital from insurance-linked securities (ILS) investors into its structure as reinsurance or loss bearing capacity, but also as growth capacity for catastrophe exposed risks as well.