. the supplementary leverage ratio compares tier 1 capital to a measure of leverage exposure , which consists of daily average total assets for the quarter and certain off-balance-sheet exposures , less certain balance sheet deductions . the capital framework requires a minimum supplementary leverage ratio of 5.0% ( 5.0 % ) ( consisting of the minimum requirement of 3.0% ( 3.0 % ) and a 2.0% ( 2.0 % ) buffer ) for u.s . bhcs deemed to be g-sibs , effective on january 1 , 2018