http://www.investing.com/news/economy-news/top-5-things-to-know-in-the-market-on-tuesday-1277156

http://www.cnbc.com/2018/02/20/walmart-q4-2017-earnings.html

http://www.cnbc.com/2018/02/19/european-markets-focus-on-earnings-data-and-next-ecb-deputy.html

http://www.investing.com/news/cryptocurrency-news/bitcoin-moves-higher-retests-11000-level-1271966

http://www.investing.com/news/commodities-news/crude-oil-prices–weekly-outlook-february-19–23-1268867

http://www.investing.com/news/forex-news/forex–weekly-outlook-february-19–23-1268747

http://www.investing.com/news/commodities-news/gold–silver–copper-prices–weekly-outlook-february-19–23-1268749

http://www.investing.com/news/economy-news/jittery-us-bond-market-braces-for-supply-wave-1270796

http://www.investing.com/analysis/week-ahead-200291608

http://www.cboe.com/blogs/options-hub/2018/02/16/cboe-s-put-index-generated-lower-volatility-less-severe-drawdowns-more-income-and-better-risk-adjusted-returns