Many researchers believe there is a relationship between sovereign and corporate foreign debt markets. This idea is supported by the observation in developed countries, whose corporate bond markets are often accompanied by active trading and issuance of government bonds. The academic literature on the subject suggests that sovereign bonds have a reference role in the valuation of corporate assets. In a context of favorable market for Brazil, characterized by the investment grade status and regular external funding with lower costs, we analyze the impact a sovereign issue has on the liquidity of securities issued by Brazilian companies in the international market. The main hypothesis is that sovereign issuances contribute to increased liquidity as reduce the risk of adverse selection associated with asymmetric information. We note that government issues lowers the yield spread and bid-ask spread of foreign corporate bonds significantly. This result indicates that sovereign bonds act as benchmarks and contribute to the establishment and growth of the foreign corporate debt market.