Astera Labs (ALAB) closed Thursday at $417.07, capping a 13.6% gain in a holiday-shortened week and setting the stage for its debut in the Nasdaq-100 index when trading resumes Monday. The stock hit an intraday high of $421.20 on Thursday, marking an all-time high, as U.S. markets were closed Friday for Juneteenth and over the weekend.
The company is set to join the Nasdaq-100 as part of the index's June rebalance, which takes effect before the open on June 22. Astera will be included alongside CoreWeave, Nebius Group, Rocket Lab, and Teradyne. According to Nasdaq, the index is tracked by more than 200 investment products that manage over $800 billion in assets, a move that is expected to drive additional inflows into the stock.
Astera's rally comes amid sustained demand for AI infrastructure, particularly for its high-speed data-center hardware. The company designs chips and software that facilitate data transfer between AI components such as processors and memory. CEO Jitendra Mohan highlighted "robust demand for our PCIe 6 portfolio" in the most recent quarter, referring to the company's high-speed server interconnect technology.
In the first quarter, Astera reported revenue of $308.4 million, a 93% increase year-over-year, with GAAP diluted earnings per share of $0.44. The company also announced it has begun shipping its Scorpio X-Series 320-lane AI fabric switch, a networking layer that connects chips and servers in computing clusters. Industry analysts have praised the product, with Patrick Moorhead of Moor Insights & Strategy noting that "the bottleneck is shifting off the GPU and into the fabric," and SemiAnalysis founder Dylan Patel adding that "interconnect is where GPU utilization goes to die."
Despite the positive momentum, the stock's valuation remains a concern. At $417.07, shares trade well above the average analyst price target of $244.97, based on data from 26 analysts compiled by StockAnalysis. This suggests that much of the expected growth is already priced in, leaving little room for error. The company faces significant competition from established players such as Broadcom, Credo Technology, and Marvell Technology, as noted in its annual report. Astera acknowledges that entering markets with entrenched competitors will add pressure on its operations.
Risks to the stock include the potential for index-related buying to fade, delays in AI orders, and the possibility that a product ramp in the second half of the year does not translate into booked revenue. The stock experienced volatile trading this week, rising 6.0% on Monday, falling 7.1% on Tuesday, recovering 3.6% on Wednesday, and surging 11.3% on Thursday with higher volume.
Monday's opening will be a critical test for Astera Labs, as investors gauge whether the index inclusion will sustain demand beyond the rebalance. The broader market also provided support, with the Nasdaq Composite gaining 1.9% on Thursday and the PHLX Semiconductor Index jumping 6.4%, according to Reuters.
As Astera Labs begins its tenure in the Nasdaq-100, the key question remains whether the market is buying into the company's long-term growth story or merely reacting to a one-time index adjustment. The coming weeks will reveal whether the stock can justify its lofty valuation amid intensifying competition and execution risks.
