Crude Oil Crash: S&P 500 Falls as Apache, Halliburton Lead Energy Stocks Lower, Airline Stocks Lose Altitude

Yesterday's winners are today's losers. The S&P 500 Index (SNPINDEX: ^GSPC) closed down 16 points on Tuesday after energy and financials stocks fell 2.5% and 1%, respectively, giving up some of their big gains from Monday.

Five of today's worst-performing S&P 500 stocks are in the energy sector, with Apache (NASDAQ: APA) and National Oilwell Varco (NYSE: NOV) the biggest losers, down 7% and 6%, respectively. Airline stocks also joined in today's sell-off, with American Airlines Group (NASDAQ: AAL) and United Airlines Holdings (NASDAQ: UAL) rounding out the bottom 10, both down 4%.

The sell-off in financials was more broad than deep, with no stock falling more than 4%, but almost 90% of the sector's stocks down today. The biggest stocks in the financials sector declined, including Berkshire Hathaway (NYSE: BRK.B), down almost 1.5%, along with banking giants Bank of America (NYSE: BAC) and Wells Fargo (NYSE: WFC), down 1.3% and 2.4%, respectively.

Source Fool.com