Wall Street turned in another stunning finish Thursday and extended its unprecedented streak of volatility _ this time, to the upside. (Oct. 16)

Analysis and Discussion with Katie Stockton of MKM Partners

Pakistan stands with the U.S. against international terrorism, the Muslim nation's presidential front-runner wrote in a column appearing Thursday amid furor over a U.S.-led cross-border attack in Pakistani territory. (Sept. 4)

Using the market price for an option on Google's stock, I use Excel's GOAL SEEK function to estimate implied volatility. Implied volatility is a reverse-engineering exercise: we find the volatility that produces a MODEL VALUE = MARKET PRIE

Lots of ways to estimate volatility. In this map, I parse out implied volatility (forward looking) and deterministic (constant) and focus on stochastic volatility: volatility that changes over time, either via (conditional) recent volatility and/or random shocks

Markets are in violent flux. Double digit drops are followed by enormous gains.Why?  Simple: Hedge funds use every up to liquidate assets, driving prices down after every upward surge.

Volatility channels is a channel trading style, origine by Hurst

Within stochastic volatility, moving average is the simplest approach. It simply calculates volatility as the unweighted standard deviation of a window of X trading days. Here I show the three "flavors:" population variance (volatility = SQRT[variance]), sample, and simple

Volatility is the standard deviation of period returns

For more information visit www.guppytraders.com

We can forecast volatility with GARCH(1,1). The key parameter is persistence (alpha + beta): high persistence implies slow decay toward the long run average

http://thinkprogress.org/2008/10/23/rove-market-obama

GARCH(1,1) estimates volatility in a similar way to EWMA (i.e., by conditioning on new information) EXCEPT it adds a term for mean reversion: it says the series is "sticky" or somewhat persistent to a long-run average

Analysis by Markus Rosgen of Citi Investment Research, Chief Asian Strategist

Analysis and Discussion with Kevin Divney of Putnam Investments

Dave Rovelli, Canaccord Adams, discusses the continued growth of the Tarp Plan and whether there is an end in site.

Fed offers $85 Billion loan; Fed takes 80% AIG stake in return; Barclays to buy Lehman's N. American investment bank for $1.75 Billion; Central Banks from Frankfurt to Sydney have added more than $200 Billion; Analysis by Simon Ballard of Fortis Investmen

Analysis and Discussion with Cantor Fitzgerald Chairman/CEO Howard Lutnick

Traders from CBOE's floor discuss specifications and strategies for the CBOE Volatility Index (VIX).

Asian stocks fall for fourth day, Philippines benchmark index plummets 12%; Analysis by Francois Savary of Reyl & CIE

NSE Volatility

Mark Hebner addresses the current market ups and downs and points out valuable sources of information from DFA, and Harry Markowitz. visit www.ifa.com for more information. Take the Risk Capacity Survey at: http://www.ifarcs.com

The seesawing will continue, so get ready. "You're not going to see just 50-point ranges, you're going to see 2-3-4 hundred point ranges at the least." Everything is connected and things do happen for a reason, change must happen, rapidly. Over 750,000 jobs have been lost in the U.S. so far this year and still rising!

Nearly three weeks ago the U.S. Congress approved an historic $700 billion bailout of America's economy. But creditors and investors still remain uncertain about the future. The Dow Jones Industrial Average has fluctuated hundreds of points within a single day, as nervous investors wait to see what happens next. VOA's Robert Raffaele talked to some economic experts about the market's volatility, and what is needed to restore stability.

As trading surges to a record and prices grow more unstable than at any time since the Great Depression, mutual funds are selling stocks and hoarding cash, reports Bloomberg News. Also, Great-West Lifeco is leaving the U.S. health insurance business, reports the Canadian Press. Meanwhile, Prudential Asset Management Company said it will launch the Prudential China Smart Wave Balanced Fund to individual and institutional investors. Finally, Santa Monica, California investment firm Coast Asset Management, which manages about $6.7 billion in assets, is preparing to expand.