There is over $23 trillion in marketable U.S. Treasury notes and bonds. On average, daily trading volume in these securities is on the order of 1) $34 trillion 2) $600700 billion 3) $56 billion 4) $50100 billion There is over $23 trillion in marketable U.S. Treasury notes and bonds. On average, daily trading volume in these securities is on the order of 1) $34 trillion 2) $600700 billion 3) $56 billion 4) $50100 billion