On 20 June 2018, Swiss Re Ltd completed an offering of USD 500 million 6-year senior exchangeable notes, which may be stock settled at the option of Swiss Re or may be exchanged at the option of noteholders for registered shares of Swiss Re, unless Swiss Re elects to settle the exchange of notes in cash. Swiss Re has purchased call options on its own shares, which allow it to settle an exchange by noteholders without issuing new shares.