diworsification
n.—Gloss: Diversifying one’s investments too much. «Diworsification refers to the fact that you can diversify too much. For example, if you own one company’s stock you could potentially hit it big, but you could also lose it all. If on the other hand, you owned 100 companies (in equal weight) and one company went bust or doubled overnight, the net impact to your portfolio is only +/- 1%. Further, if you owned 1,000 stocks and one company either tanked or doubled, the effect on your portfolio is only +/- 0.1%.» —“A “diworsified” portfolio: Being too diversified” by Preet Banerjee Stockhouse Aug. 8, 2008. (source: Double-Tongued Dictionary)