http://www.cboeoptionshub.com/2014/10/20/will-bounce-legs-weekly-market-outlook/

http://dealbook.nytimes.com/2014/10/20/why-high-frequency-trading-is-so-hard-to-regulate/?_php=true&_type=blogs&partner=yahoofinance&_r=0

http://blogs.wsj.com/moneybeat/2014/10/20/options-traders-betting-on-4-move-from-apple-after-earnings/

http://www.forbes.com/sites/johntobey/2014/10/20/corrected-stock-market-at-crossroads-how-to-decide-next-direction/?partner=yahootix

http://www.investing.com/analysis/big-move-for-the-%27vol-of-vol%27-229498

http://www.investmentnews.com/article/20141018/FREE/141019924/options-market-action-suggests-investor-fear-has-peaked

http://www.bloomberg.com/news/2014-10-17/investors-shaken-as-s-p-500-reversals-ignite-volatility.html

http://online.barrons.com/articles/new-tools-for-options-1413617212

http://www.bloomberg.com/news/2014-10-17/s-p-500-bottom-fishers-baited-by-volatility-curve.html

http://www.nytimes.com/2014/10/20/business/volatility-unlikely-to-alter-feds-policy-course.html?_r=0

http://www.businessweek.com/news/2014-10-17/cboe-futures-halted-earlier-today-in-third-delay-of-week

http://www.businessweek.com/news/2014-10-17/s-and-p-500-bottom-fishers-baited-by-volatility-curve