It’s Not Municipal Securities, Consumer Credit, or Commercial Paper: It’s the $17 Trillion Trade Receivables Market Walter Kurtz at Business Insider writes that it turns out that the biggest financing market is not in corporate bonds or even mortgages. It’s trade receivables. According to the Receivables Exchange, $11 trillion of trade receivables is originated by small and mid-size businesses and another $6 trillion by large corporations, for a whopping total market size of $17 trillion.