SpaceXhas drawn about $89 billion of demand for its debut US bond sale, according to people with knowledge of the matter, setting the stage for one of the biggest deals in the US investment-grade market this year.Elon Musks rocket, satellite and AI conglomerate is seeking to raise between $20 billion and $25 billion from thefive-trancheoffering in a deal thats expected to price on Tuesday. At the lower of that range, demand would exceed the bond size by more than four times. Debt investors, who tend to be more conservative than those in the equity market, are betting on Musks ability to deliver on his promises even as the company is projected to burn significant amounts of cash over the next few years.For more, we speak with Robert Schiffman, Senior Tech Credit Analyst for Bloomberg Intelligence. (Source: Bloomberg)