The benchmark 10-year Treasury was falling 5/32, boosting the yield to 2.050%. The dollar was up 0.12%, according to the U.S. dollar index . In corporate news, Dell ( DELL) announced fourth-quarter earnings of 40 cents a share on $14.3 billion in revenue, which was off 11% year over year, but up 4% from the fiscal third quarter. Analysts expected 39 cents a share on $14.1 billion. Shares were off 0.04% in premarket trading. Dell did not provide outlook for the first quarter as it cited the company's recent move to go private. Tesla Motors ( TSLA) is expected by analysts to report a fourth-quarter loss of 53 cents a share on $298.9 million in revenue. Shares of the electric vehicle manufacturer were rising more than 1% in early trades. Toll Brothers ( TOL) reported a profit of 3 cents a share on revenue of $424.6 million. The report came in worse-than-expected as analysts were forecasting a profit of 11 cents a share on $500.6 million in revenue. The company said its backlog at Jan. 31 was $1.86 billion, which was up 66% from a year ago. Shares were sinking more than 2.5% in the early morning session. Boeing ( BA) engineers accepted a new four-year contract, but technical workers voted to authorize a future strike as they rejected their contract offer. The news comes amid Boeing's troubles with the battery on its Dreamliner jets. The company has discovered a fix to the battery problem, Reuters reported. Shares were adding nearly 1.5% in premarket. Electronics giant Sony ( SNE) was expected to unveil its latest gaming console, PlayStation 4. The company is holding the event in New York. American depositary receipts were rising about 0.5% in the premarket. Dish Network ( DISH) reported earnings of 46 cents a share on revenue of $3.59 billion. Revenue dropped against a year ago, while earnings fell from 70 cents a year earlier. Analysts were looking for 51 cents a share on revenue of $3.56 billion. Shares lost 2.3% on Tuesday. Herbalife ( HLF) reported earnings and revenue rose in the fourth quarter against the same time last year. The stock has received much attention as investors Carl Icahn and Bill Ackman have publicly disagreed over the worth of the company. Shares were off 0.48% in premarket trades.