http://www.bloomberg.com/news/articles/2015-10-19/before-u-s-called-igor-oystacher-a-spoofer-he-was-known-as-990

http://www.financialmagazin.com/mastercard-inc-has-another-very-positive-options-trading-session/

http://www.reuters.com/article/2015/10/19/cme-group-fees-idUSL1N12J2KO20151019

http://www.bloomberg.com/news/articles/2015-10-19/ex-rabobank-trader-says-libor-time-was-call-to-fix-rates

http://www.cboeoptionshub.com/2015/10/19/weekly-market-outlook-things-are-pointed-in-a-bullish-direction/

http://www.financialmagazin.com/u-s-bancorp-has-another-very-positive-options-trading-session/

http://www.cnbc.com/2015/10/19/is-the-volatility-spike-already-over.html

http://blogs.barrons.com/focusonfunds/2015/10/19/the-vix-declined-unusually-fast-a-worry-for-mkm-partners/

http://www.bloomberg.com/news/articles/2015-10-19/chicago-trader-oystacher-accused-of-spoofing-in-futures-markets

http://finance.yahoo.com/news/wall-street-edge-china-data-092550735.html

http://www.cboeoptionshub.com/2015/10/17/the-week-in-vix-1012-1016/

http://investorplace.com/2015/10/option-profits-determined/#