http://www.bloomberg.com/news/articles/2015-06-04/goldman-says-options-traders-too-complacent-before-opec-meeting

http://www.reuters.com/article/2015/06/04/uk-eu-derivatives-regulations-idUKKBN0OK1QC20150604

http://www.usnews.com/news/business/articles/2015/06/03/what-next-for-greece-a-look-at-its-options-in-coming-days

http://www.cboeoptionshub.com/2015/06/04/buy-call-stupid-buyer-in-vix-options-today/

http://www.fow.com/3458808/Eurex-CME-up-as-US-options-volumes-decline.html

http://www.marketwatch.com/story/allure-of-cash-grows-as-fear-of-market-correction-rises-2015-06-04?siteid=yhoof2

http://news.yahoo.com/brokers-were-tool-armoury-ex-trader-hayes-court-172928531–sector.html;_ylt=A0LEVoCQSHBVak8AadwnnIlQ;_ylu=X3oDMTByMjB0aG5zBGNvbG8DYmYxBHBvcwMxBHZ0aWQDBHNlYwNzYw–

http://online.barrons.com/articles/goldmans-oil-trade-how-to-profit-on-opec-move-1433358148

http://www.reuters.com/article/2015/06/03/us-volatility-investing-funds-idUSKBN0OJ0B020150603

http://www.hedgeweek.com/2015/06/03/224330/cboe-futures-exchange-vix-futures-adv-9-cent-may

http://news.morningstar.com/articlenet/article.aspx?id=699695

http://www.fow.com/3458906/Why-OTC-is-back-in-vogue.html