Belvedere Trading, LLC | 32,852 followers on LinkedIn. We are an employees-first firm, passionate about building new technologies and making an impact in the markets. | In March of 2002, Belvedere Trading emerged as Chicago’s newest market makers, soon to join the ranks of the Windy City’s elite proprietary trading firms. Armed with printouts of Excel workbooks and a team of eager minds, Belvedere established their place in the SPX pit on the floor of the Chicago Board Options Exchange. From the beginning, we began iteratively investing in our proprietary technology, first building our options model, then adapting it to work on a handheld computer, then committing to building our software systems from the ground up.