Seems like alot bigger then $700B

A total $33.6 trillion of transactions are outstanding on governments, companies and asset-backed securities worldwide, based on gross numbers, the DTCC said in the report released on its Web site yesterday. After canceling out overlapping trades, investors have taken out a net $22.7 billion of contracts based on Italy's debt, $16.7 billion against Spain and $12.5 billion on Deutsche Bank of Frankfurt, the report shows.

http://www.bloomberg.com/apps/news?pid=20601087&sid=auQSTZnaO5JY&refer=home