Mike,
Sure, but the big 4 are also a bit bigger than they used to be too...
http://www.swivel.com/graphs/image/31800827
http://www.stocklendingtoday.com/.a/6a00e5540aaa048834010536f0603d970b-800wi
WBC number 12, CBA number 15, NAB number 25, ANZ number 33...
Even ANZ has 17.9Bn in...