If you think one outcome is more probable than its current value indicates, buy some shares to increase its price. You can buy either by entering the amount of money you want to invest or the number of shares you want to buy. You believe a price is too high? Sell some stock! But remember, you can only sell stocks that you already own.

rumors are -as usual- somehow garbled, what's your view on that?

market created by tziralis and closes on 2010-04-01, or the moment one of the outcomes proves to be true

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Stock	current price	¥€$ to invest	shares to buy	new price
before Q4 2009 Windows 7 to be launch before October 2009	0.479			0.479
during Q4 2009 Windows 7 to be launch between October 2009 ad December 2009	0.155			0.155
during Q1 2010 Windows 7 to be launch between January 2010 and March 2010	0.211			0.211
After Q1 2010 Windows 7 to be launch after March 2010	0.153			0.153

Available cash: 0.0

buy

Remember, Prices equal probabilities. Think a price is too low? Go buy!