Economic it affecting fund managers?

Was just here wondering how this economic depression is affecting the common trader. I know for example that the stock market is or should I say was suffering. For traders however I'm not sure there's much damage.
As for fund managers such as ameritrade or liquiditygiants who bank with Bank of America primarily don’t seem to be severely affected by the crunch. Forex ad on my TV tell me there must be some damage, but is there anyone who could shed some light on the health of these fund managers and the current viability?