IB has 500k available as of today, lets see what is says tomorrow [9/10/2013 11:31:42 AM] scroll down for today https://www.interactivebrokers.com/en/?f=%2Fen%2Ftrading%2FViewShortableStocks.php%3Fkey%3Dj%26amp%3Bcntry%3Dusa%26amp%3Btag%3DUnited%252520States%26amp%3Bib_entity%3Dllc%26amp%3Bln%3D%26amp%3Basset%3D [9/10/2013 11:33:27 AM] Symbol: JBII Availability: 500'000 Exchanges: PRIMQX ---------------------------------------------------------- ok here are the results today at IB [8:45:20 AM]Symbol: JBII Availability: 10'000 Exchanges: PRIMQX https://www.interactivebrokers.com/en/?f=%2Fen%2Ftrading%2FViewShortableStocks.php%3Fkey%3Dj%26amp%3Bcntry%3Dusa%26amp%3Btag%3DUnited%252520States%26amp%3Bib_entity%3Dllc%26amp%3Bln%3D%26amp%3Basset%3D look for yourself... JBII MBOT