http://www.forbes.com/sites/robertlenzner/2018/02/25/warren-buffett-eager-to-make-big-buys-with-116-billion-cash-pile-in-2018/#2f9ad7a17653

http://www.investing.com/news/commodities-news/crude-oil-prices–weekly-outlook-feb-26–march-2-1307909

http://www.investing.com/news/commodities-news/gold–silver–copper-prices–weekly-outlook-feb-26–mar-2-1308004

http://www.investing.com/analysis/week-ahead-200293926

http://www.schwab.com/resource-center/insights/content/volatility-spikes-warning-or-opportunity?cmp=em-QYB

http://www.marketwatch.com/story/theres-a-new-volatility-witching-hour-puzzling-stock-traders-2018-02-23

http://www.investing.com/news/commodities-news/oil-edges-up-on-drop-in-us-inventories-but-surge-in-exports-caps-gains-1298878

http://www.cnbc.com/2018/02/23/stocks-making-the-biggest-moves-premarket-buff-hpe-hpq-fdx-ups-wing-more.html

http://www.cnbc.com/2018/02/23/general-mills-to-buy-natural-pet-food-company-blue-buffalo-for-about-8-billion-in-cash-sources.html

http://www.investing.com/news/stock-market-news/numbers-starting-to-add-up-for-tesla-trucks-dhl-executive-1300728