Analysts surveyed by FactSet expect adjusted fourth-quarter earnings of $4.09 a share on revenue of $20.81 billion.
The company reported third-quarter net income of $2.3 billion, or $2.58 a share, compared with $2.68 a share in the year-ago period.
Earnings from continuing operations were $1.89 a share, compared with $1.87 a share in the year-ago period.
Revenue fell to $17.6 billion from $18.03 billion in the year-ago quarter, continuing a long-term sales decline that has seen revenue fall year-over-year in all but four of the past 33 quarters.
IBM had reported preliminary earnings of $2.58 a share on revenue of $17.6 billion earlier this month, and analysts surveyed by FactSet had shifted their estimates to an average of $2.58 a share on revenue of $17.54 billion.
Global technology services, or GTS, posted $6.5 billion in revenue compared with $6.7 billion in the year-ago quarter and the $6.25 billion Street consensus.
The company reported cloud and cognitive software revenue — which includes its Red Hat unit — of $5.6 billion compared with $5.28 billion a year ago, while analysts had been expecting $5.48 billion.
Global business services revenue was $4 billion, compared with $4.12 billion a year ago, and Street forecasts of $3.9 billion.
Systems revenue was $1.3 billion, compared with $1.48 billion a year ago and analyst expectations of $1.55 billion.