Meta on Wednesday will report fourth-quarter earnings, and investors will be looking for any signs that its revamped artificial intelligence strategy will benefit the company in 2026. Underpinning Meta's AI efforts has been a major data center build-out while rivals like OpenAI and Alphabet do the same. Meta on Tuesday said it committed to paying glass manufacturing giant Corning up to $6 billion through 2030 for fiber-optic cable in its AI data centers. The company is expected to report $56.98 billion in online advertising sales for the fourth quarter, according to StreetAccount. Analysts estimate Reality Labs to post a fourth-quarter operating loss of $5.67 billion on $940.8 million in sales.