Buffett hints at bigger deals as Berkshire profit rises.

 Berkshire Hathaway's (BRK.A) Q4 net profit climbed almost 10% to $4.99B, or $3,035 per class A share, helped by gains at the company's insurance units. Berkshire's annual letter indicated that the conglomerate could make more major deals. "NV Energy will not be MidAmerican’s last major acquisition," Warren Buffett wrote of last year's $5.6B purchase. Berkshire ended 2013 with $48.19B in cash and equivalents, which gives the company a sizable war chest.