http://www.cnbc.com/2017/06/13/market-fear-indicator-shows-historic-difference-between-nasdaq-100-and-sp-500.html

http://tradinggods.net/trading-gods-blog/tech-sector-meltdown-sends-us-stocks-lower/

http://marketrealist.com/2017/06/sp-500-nasdaq-weaker-amid-technology-sector-sell-off/

http://www.forbes.com/sites/petertchir/2017/06/12/can-vix-finally-break-higher/#6063acd11976

http://www.investing.com/analysis/active-trader-predicts-vix-spike—nasdaq-selloff-200194427

http://www.livemint.com/Money/caW3aqjCrDnbtZnPlUHUMK/As-global-economic-uncertainty-rises-so-should-market-volat.html

http://www.investing.com/analysis/wee-ahead:-200194404

http://tradinggods.net/trading-gods-blog/nasdaq-drops-dow-sets-new-record/#

http://www.investing.com/analysis/volatility-index-takes-out-its-pre-crisis-lows%E2%80%A6-200194370

http://www.cboe.com/blogs/options-hub/2017/06/10/weekend-review-of-vix-options-and-futures—6-5-2017—6-9-2017

http://www.cboe.com/blogs/options-hub/2017/06/11/the-weekly-options-news-roundup-6-11-2017

http://www.marketwatch.com/story/sell-for-the-summer-as-the-stock-markets-next-5-move-is-down-deutsche-bank-says-2017-06-12?siteid=yhoof2&yptr=yahoo