Updated at 9:48 AM EST

Broadcom shares moved higher in early Monday trading, putting the stock on pace for a December gain of around 40%, following another price-target boost for the AI-chip maker from a top Wall Street analyst.

Broadcom ( AVGO ) shares topped the $1 trillion mark this month, in terms of market value, as the group continued to benefit from its market leadership in custom AI chips, as well as from its role as a potential partner for hyperscalers seeking to design their own processors and wean their reliance from Nvidia ( NVDA ) .

Amazon ( AMZN ) , Google parent Alphabet ( GOOGL ) and Microsoft ( MSFT ) have all partnered with Broadcom to develop custom artificialintelligence infrastructure, while reports have suggested that Apple ( AAPL ) is looking to develop its Baltra AI-server chip with the Palo Alto, Calif., group.

Broadcom also makes specialized networking gear that determines the speed at which information collected in one network is passed along to the next.

Collectively, the group sees the serviceable size of those markets rising to between $60 billion and $90 billon over the next three years.

"We are very well positioned to achieve a leading market share in this opportunity and expect this will drive a strong ramp from our 2024 AI revenue base of $12.2 billion," CEO Hock Tan told investors on a conference call earlier this month.

Bullish AI outlook prompts Broadcom upgrades

That outlook has triggered a host of upgrades on Broadcom stock from Wall Street analysts, including Timothy Arcuri of UBS, who lifted his price target by $50 to $270 a share in a note published Monday.

"After reviewing Broadcom's serviceable-addressable-market disclosures and reassessing likely outcomes for its custom compute and AI-networking businesses, we are raising our AI revenue estimates" for fiscal 2026 and fiscal 2027 by some 20% and 40% respectively, Arcuri and his team wrote.

Broadcom told investors on Dec. 12 that for its fiscal first quarter ending in December, it expects AI revenue to rise 65% from a year earlier to $3.8 billion. That compares with a 10% growth rate for its overall chip sales, which translates into a top line of $14.6 billion.

Related: Analysts overhaul Broadcom stock price targets after Q4 earnings

"Even with these higher estimates, we still see room for upside given our middle-of-the-road market-share assumptions and the strong likelihood of significant SAM expansion if/when Broadcom adds two additional hyperscalers to its AI customer base," Accuri said.