An investor or speculator may "buy protection" to hedge the risk of default on a bond or other debt instrument, regardless of whether such investor or speculator holds an interest in or bears any risk of loss relating to such bond or debt instrument. In this way, a CDS is similar to credit insurance, although CDSs are not subject to regulations governing traditional insurance. Also, investors can buy and sell protection without owning debt of the reference entity. These "naked credit default swaps" allow traders to speculate on the creditworthiness of reference entities. CDSs can be used to create synthetic long and short positions in the reference entity. Naked CDS constitute most of the market in CDS. In addition, CDSs can also be used in capital structure arbitrage.