http://www.forbes.com/sites/dividendchannel/2016/05/13/notable-friday-option-activity-agn-mlm-dltr/#3ea3a66f20ee

http://www.bloomberg.com/view/articles/2016-05-12/hedging-on-the-case-against-hedge-funds

http://www.thetradenews.com/Regulation/Regulators-%E2%80%9Ccan-t-stop-HFT%E2%80%9D,-it-s-up-to-the-exchanges-%E2%80%93-says-panel/

http://www.bloomberg.com/news/videos/2016-05-12/options-insight-playing-the-energy-select-sector-spdr-fund

http://www.cboeoptionshub.com/2016/05/12/options-core-satellite-part-portfolio-management/

http://uk.reuters.com/article/uk-euronext-results-idUKKCN0Y40MU

http://www.globalcapital.com/article/xrnw03z3s75d/focus-on-short-dated-volatility-brings-lse-options-response

http://tradinggods.net/trading-gods-blog/us-stocks-extend-losses-healthcare-technology-weighus-stocks-extend-losses-healthcare-technology-weigh/

http://www.marketwatch.com/story/investors-have-the-best-stock-market-ever-thanks-to-high-frequency-trading-2016-05-12?siteid=rss&rss=1

http://www.forbes.com/sites/fredoltarsh/2016/05/12/options-liquidity-check-in-apple-amazon-gld-alphabet-spy-and-vix-dont-give-up-the-edge/#51aa5890108d

http://tickertape.tdameritrade.com/options/2016/05/historical-implied-volatility-92760

http://seekingalpha.com/article/3974294-volatility-get-wild-summer