infoarbitrage
Managing Partner of Big Data VC fund, IA Ventures. Former CEO of DB Advisors and derivatives professional.

buffalod
Trader, private investor, land owner (through Buffalo Properties, LLC) and other businesses (Buffalo Consulting LLC)

futurestrader71
Professional index futures and commodities trader in Chicago. Prop trading shop owner. Partner at www.vankartrading.com/vk-trader-lite. A brokerage that blends high-end service w/ prop trading approach

optionsizzle
Active trader in the options and stock market. I help traders with coaching and trade ideas from following unusual money flow into options and stocks

daytrend
Stock trader since 1995, trend trader, dip-scalper, tape reader, independent thinker, Market Stats, stock ideas

stockaddict
Passion trading Technicals, News, Fundamentals, whatever prints money. Trade all time frames w dash of Macro. Tweet mostly TA swing setups. Love to teach the trade. Ask Qs!

jaltucher
I'm devoted to honesty, as corny as that sounds.

gregmikefx
Chief Currency and Trading Analyst for FXDD. Author of "Attacking Currency Trends" . To order my book at a discount, please order from www.attackingcurrencytrends.com . Use discount code twit for a 10% discount.

vcutrader
trader - specialize in trading structured products, global equities, and options.....feel free to follow trades on twitter or here on stocktwits

sspencer_smb
Prop trader and co-founder of SMB Capital and SMBU. Focus is intraday. Will swing again in 2013

BobBrinker
Investor, Editor, and Publisher.

afraidtotrade
Full-time professional trader, analyst, educator focused on intermarket analysis, classic technicals, and integration of trading strategies intraday (focus on edge)

Legacy_Trades
Legacy Investments & Development, LP is a Family Office that actively trades the US markets.

Techinsidr
Former Financial Analyst at a major technology company. I now trade stocks and write a finance/investing blog at techinsidr.com. http://techinsidr.com

condoroptions
Publishes options research and manages a volatility arbitrage strategy for clients.

tradefast
Corporate Chief Investment Officer with 27+ years of professional money management experience. I trade/invest for my personal account & wealthy clients. I have an honest, helpful approach - no conflicts of interest, & I am frequently wrong. :-)

downtowntrader
Active Trader, Author (Chartadvisor.com, Investopedia.com, SFO Mag), Blogger

Ritholtz
http://www.ritholtz.com/blog/barry-ritholtz-curriculum-vitae/

nickfenton
TickerTank.com founder. My primary source of income is Options trading. Complimenting logical assumptions with proper strategy is my method of trading. I track weighted average portfolio probability of success regularly...P&L far less often.

Benzinga
Real time news and updates. Bringing you news before its news. The Trading Idea Network.