The Weekly News Roundup is your weekly recap of CBOE features, options industry news and VIX and volatility-related articles from print, broadcast and online and social media outlets. Watch VIX and TYVIX as Uncertainty in Europe Grows

Greece’s debt crisis has Jon Najarian keeping an eye on two key volatility indexes. The VIX Index, a measure of the S&P 500 and the TYVIX Index, a measure 10-year Treasury Notes, can both be used to monitor volatility as a potential exit of Greece from the Eurozone looms over the weekend.

“DRJ: Keep a Close Eye on Volatility” –Jon Najarian, Option Monster

“Investors Hedging Against Greece, But There’s No Panic,” –Gertrude Chavez-Dreyfuss, Reuters

“Choose Your Own Fear Adventure” –Tracy Alloway, Bloomberg

More Options, Less Liquidity

Recent research suggests that expanded options products and further fragmentation of the options market could diminish liquidity. With 12 options exchanges in play, and two more on the way, will liquidity be spread too thin?

“More Exchanges Disperse Options Liquidity” –Markets Media

“Complex U.S. Options Market Hampers Liquidity” –The Trade News

VIX Wakes Up From Slumber

The VIX Index may be slowly rising. On Monday, single day volume in VIX futures topped 400,000 for the first time this year. VVIX—“the VIX of VIX,” also rose, indicating that demand for VIX options rose in line with the rise in the index.

“Today in VIX, SPX, and RUT” –Russell Rhoads, CBOE Options Hub

“VIX Hits Four-Month High on Greece, but Still Nowhere Near a ‘Panic’” –Saumya Vaishampayran, The Wall Street Journal

“Worldwide Stock Volatility Soars as Sleepy VIX Awakens on Greece” –Crain’s Chicago Business