http://www.interactivebrokers.com/en/?f=5599&vid=6137&ns=T

http://www.bloomberg.com/news/articles/2015-05-11/u-s-index-futures-are-little-changed-with-s-p-500-near-record

http://www.reuters.com/article/2015/05/11/china-markets-stocks-futures-idUSL3N0Y22LQ20150511?type=companyNews&feedType=RSS&feedName=companyNews

http://www.tradersmagazine.com/news/options/april-us-options-volume-at-3276m-down-from-march-as-spreads-tighten-113839-1.html

http://www.thetradenews.com/news/Trading___Execution/Industry_issues/US_unveils_details_of_two-year_tick_size_scheme.aspx

http://www.marketwatch.com/story/us-stocks-futures-dip-as-markets-struggle-to-build-on-post-jobs-gains-2015-05-11

http://www.valuewalk.com/2015/05/barclays-notes-volatility-hedges-benefited-from-sp-500-hiccup/

http://www.pickbestgift.com/blogs/finance/26458369-how-to-play-amazon-netflix-and-tesla-in-earnings-season

http://www.fow.com/3451976/Sarao-training-firm-calls-for-trading-reform.html

http://www.bloomberg.com/news/articles/2015-05-10/bullish-bets-on-china-life-surge-as-profit-seen-reaching-record

http://www.natlawreview.com/article/cftc-takes-quick-action-against-uae-traders-alleged-spoofing