When you have so many followers on Twitter that you can exploit them with any tweet about your stock portfolio, creating artificial demand and causing prices to skyrocket, making you tons of money.
50 Cent's inside tweeting about H&H Import creating a jump from $0.10 to $0.39 per share:

"HNHI is the stock symbol for TVG there launching 15 different products. they are no joke get in now."
by Carbomb January 17, 2011
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