The impact of a firm's financial distress depends also on the degree to which it is interconnected, either receiving funding from, or providing funding to, other potentially systemically important firms, as well as on whether it performs crucial services that cannot easily or quickly be executed by other financial institutions.
In addition, the impact varies over time: the more fragile the overall financial backdrop and the condition of other financial institutions, the more likely a given firm is to be judged systemically important. If the ability of the financial system to absorb adverse shocks is low, the threshold for systemic importance will more easily be reached.