Trading Pure Alpha
Rare7.3%ObjectiveOptionalSingle-player
Make a profit over your total investments in the stock market.
Make a profit on the in-game stock market (the LCN and BAWSAQ exchanges). Buy any stock and sell it higher - the Lester assassination missions are the classic way to swing a stock hard, but simply buying low and selling higher on any stock counts. Any net profit over your investment does it.