Dear shareholders, this is what your company thinks of the crisis and why we had (virtually) nothing to do with it, respectfully, your buoyant bank stock's chief executive.

Extensive letters to shareholders seem to be all the rage, with Goldman Sachs chief executive Lloyd Blankfein and top lieutenant Gary Cohn following the lead of Jamie Dimon at JP Morgan and publishing what amounts to a wide-ranging defence of the bank's actions during the crisis. Highlights follow.