STOCKS TO WATCH The Biggest Loser: United Rentals Slides 6.1% The slide in oil prices today made United Rentals the worst performer in the S&P 500. By Ben Levisohn Updated June 14, 2017 5:04 p.m. ET United Rentals(URI) tumbled to the bottom of the S&P 500 today asoil prices fell, raising concerns aboutits business segments exposed to oil and gas. United Rentals wiped out just like this dirt biker.ILLUSTRATION:GETTY IMAGES United Rentals dropped 6.1% to $104.81 today, while the S&P 500 dipped 0.1% to 2,437.92. WTI crude oil fell 3.7% to $44.73 today. United Rentals' market capitalization fell to $8.6 billion today from $9.4 billion yesterday. It reported net income of $566 million on sales of $5.8 billion in 2016. http://www.barrons.com/articles/the-biggest-loser-united-rentals-slides-6-1-1497474235