Fred Wilson of Union Square Ventures has blogged that even with their impressive track record, it loosely correlates to a 1/3rd rule for them. Of their investme

Fred Wilson of Union Square Ventures has blogged that even with their impressive track record, it loosely correlates to a 1/3rd rule for them. Of their investments: 1/3rd lose money, 1/3rd (mostly) break even, 1/3rd make profit.