but the first one was this, 5-hour energy and the guy who came up with it, his name is manoj bhargava. and two ounces, that your idea. >> yeah, that was mine. >> reporter: yeah, a $1.3 billion idea. that's what "forbes" said he was worth earlier this year. how did being outed as a billionaire change your life? since nobody really -- not nobody but it wasn't well known before. >> well, that was on purpose. i didn't want to be known, you know, people say i don't want to toil in obscurity, i like toiling in obscurity. >> reporter: obscurity gets difficult when your billion dollar product comes under official scrutiny. new york's attorney general issued subpoenas to his company and monster beverage and pepsico which makes amp seeking more details on their ingredients and how the products are marketed and advertised. not even the trade association that represents energy drinkmakers knows the details of these subpoenas. they do, however, see little reason to worry reminding consumers of its own internal policy. "voluntarily listing total caffeine amounts on packages noting that energy drink

it's run by manoj narang and a small group of mathematicians and scientists called "quants," which is short for quantitative analysts. and their high-speed computers trade 40 million shares every day. are humans ever involved in the trading? >> humans are not involved in the trading because humans are way too slow to trade on the kinds of opportunities that we're trying to capture. we're trying to capture opportunities that exist for only fractions of a second. this stock over here was down 1.8% for the past week. >> the tradeworx computers don't care where a stock is going to be trading next year, next month, next week, or even tomorrow, because they're going to be in and out of it today, in a matter of minutes. what's the point of buying and selling a stock that you hold for three minutes? >> the same objective that all other participants have in the market is to make money. you buy low, sell high. that's how you make money. >> and the computer will know when to buy and when to sell? >> sure, the computer is monitoring real-time data, and it knows what to do with that data and how t