http://finance.yahoo.com/news/gold-leads-commodities-slump-dollar-060724172.html

http://www.bloomberg.com/news/articles/2015-07-20/european-futures-options-opening-delayed-for-issues-eurex-says

http://english.yonhapnews.co.kr/business/2015/07/20/0503000000AEN20150720001551320.html

http://www.bloomberg.com/news/articles/2015-07-17/u-s-stocks-move-on-from-greek-impasse-in-best-week-since-march

http://online.barrons.com/articles/the-case-for-a-24-hour-vix-1437196171

http://www.chicagotribune.com/news/sns-wp-blm-news-bc-markets17-20150717-story.html

http://www.bloomberg.com/news/articles/2015-07-17/maybe-investors-love-credit-index-options-a-little-too-much

http://blogs.barrons.com/focusonfunds/2015/07/17/vix-collapses-time-again-to-buy-vix/

http://www.foxbusiness.com/markets/2015/07/16/high-speed-trading-fragmentation-silver-lining-to-market-glitches/

http://www.bloomberg.com/news/articles/2015-07-17/nasdaq-100-futures-advance-as-google-surges-after-earnings-beat

http://www.bloomberg.com/news/articles/2015-07-17/record-vix-retreat-is-just-another-crash-scare-failing-to-happen

http://uk.reuters.com/article/2015/07/16/usa-banks-swaps-idUKL2N0ZW11F20150716