The forecast for the fourth quarter meets market expectations.
Third-quarter operating income was $367 million, compared with an average analyst estimate of $352 million and up from $180 million in the third quarter of last year.
Third-quarter net sales were $3.76 billion, up from $3.19 billion last year and slightly above the expected $3.72 billion.
In its fourth-quarter forecast, STMicroelectronics expects sales to increase to $4.15 billion, compared with an average forecast of $4.11 billion.
