here we go again.(with volume and volatility close to all time low) not sure what was the rationality right now for such increase. what's up with node/2007 ? any explanation will be appreciated. Margin Increases on Low Cap Securities Please be advised that IB has increased the initial margin rates to 100% on low capitalization stocks (currently defined as companies with less than $250 million in market capitalization). The maintenance margin increases will occur in stages starting with an increased to 50% beginning after each region's market close on Friday, January 11, 2013 and will be implemented as follows: Friday January 11, 2013: Maintenance Margin - 50% Wednesday, January 16, 2013: Maintenance Margin - 75% Monday January 21, 2013: Maintenance Margin - 100% The list of stocks which are subject to this margin increase can be found on the following page: http://ibkb.interactivebrokers.com/node/2007 to be honest-looking on my BP during the day makes me think that they done this long time ago.. few days back my BP before market open was > 250K.but as day goes by-it's runs out to zero while i was holding <100K worth of stocks. go figure..