IBM's third quarter revenue missed expectations as its cognitive solutions and technology services and cloud platforms units saw declines from a year ago. Big Blue reported earnings of $2.94 a share on revenue of $18.8 billion, down 2 percent from a year ago. Non-GAAP earnings were $3.42 a share. Wall Street was expecting IBM to report third quarter earnings of $3.40 a share on revenue of $19.1 billion. IBM has been heavily focused on growing artificial intelligence as a business.