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Trading Glossary Implied volatility The volatility figure that, when used in a theoretical pricing model, gives precisely the market price for an option. It is the volatility "implied" by the market and "explains" the market price. << Back to Trading Glossary Index

As of 8 am ET   Updates every 2 hrs Name Symbol PR Western Refining Inc     WNR 8 Renal Care Group Inc     RCI 8 Rait Financial Trust     RAS 8 Penn Va Resource Partners Lp     PVR 8 Netflix Inc     NFLX 8 More Top Rated Stocks >> Free Trial Short Term   Long Term   PowerRatings Charts Name Symbol PR Alpine Total Dtnamic Div Fd     AOD 10 Hawaiian Electric Ind     HE 10 HOLDRS Pharmaceutical     PPH 10 More Top Rated Stocks >> Short Term   Long Term   PowerRatings Charts Trading Contests - Free! >> TradingMarkets Up or Down Stock Contest Win up to $11,000 predicting the direction of a stock! Enter Contest >> TradingMarkets Up or Down Forex Contest Win $1000 every month! Enter Contest >> $10,000 Beat the Streak Contest >> $5,000 Forex Beat the Streak Contest Most Popular 1. Know Your Options on Expiration Day 2. PowerShares ETFs Make Great Trading and Investing Tools 3. Learn the Best Times of the Day for the Best Trades 4. The Straddle: Using Calls and Puts Together To Capture A Big Move 5. Do Stops Hurt Your Trading Performance? 6. How to Use Options to Replicate a Futures Position 7. How to Read an Options Chain 8. Mastering the Art of Tape Reading (Part 1) 9. Trailing Stops and Profit Targets for Stock Traders 10. Put Options at Work: A Trader's Guide More How To's >> 1. DJ Zinifex: Makes Zinc Discovery In Tasmania's Rosebery Mine 2. Enron Loophole: Congress Approves Measure to Close "Enron Loophole" 3. UN calls for ?reinvigoration? of agriculture 4. JZZ Technologies, Inc. Announces Consulting Contract with Ola Grimsby of the Ola Grimsby Institute (OGI) 5. OBG to release The Market : Abu Dhabi 6. S. Korea removes visa hurdles for Chinese, Myanmarese residents 7. S. Korea, Iceland sign double taxation convention 8. Questerre and Talisman to Accelerate Work in Quebec 9. DSO to focus on attracting full IT ecosystem to create sustainable development 10. Bloated payrolls More Trading News >> Name Symbol PR Apple Inc    AAPL 4 Research In Motion Ltd    RIMM 4 First Solar Inc    FSLR 3 Google    GOOG 6 NVIDIA Corporation    NVDA 3 Baidu.com Inc    BIDU 5 Emc Corp    EMC 3 Sina Corp    SINA 2 More PowerRatings >> Morning Coffee with TradingMarkets 7 Stocks You Need To Know For Tomorrow TradingMarkets Weekly Newsletter PowerRatings Newsletter The Market Next Week

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