Markets banging around as Greece and surprisingly to a lesser degree, China, make all equities holders a bit uneasy. China using all the tricks they tried in the US at the time of the crash of 1929. Galbraith's book "Great Crash 1929" is great reading and illustrates the absurdity of orchestrated efforts by brokerage. You can bet these same folks were talking about stopping the declines by raising pools of funds and at the same time selling theirs through someone else.
Greece has a bit of a different significance. It represents the ability of banking in Europe to keep in place a system where the top has no risk and everyone else has to step out. Greece should play the banks and look for relief through hard talk regarding the weak link now being created by bank hardliners. Shine a light on the next stumble and its devastating potential to the EU. They will pay to shut you up.