Tech and infrastructure stocks surged last week driven by AI and data center momentum. Applied Optoelectronics led with a 37.18% gain after securing a $71 million order for data center transceivers. Nebius jumped 33.92% on reports of acquiring AI21 Labs, while CoreWeave gained 25.63% following deals with Anthropic, Meta, and Google. Intel rose 22.42% after announcing its Terafab project participation.

U.S. equity markets experienced volatility on Thursday following President Trump's Wednesday address, with oil prices surging 11.9% to $112/barrel amid Iran tensions. The S&P 500 fell 0.3%, while Tesla dropped over 4% to seven-month lows after weak Q1 delivery figures. Economic data showed jobless claims at near two-year lows and a tighter trade deficit, while gold retreated 2.4% on a stronger dollar.

U.S. equity markets rebounded from seven-month lows on Monday as President Trump disclosed negotiations with Iran and Fed Chair Powell downplayed imminent rate hikes, calling tariffs a 'one-time price bump.' Treasury yields fell significantly, boosting financial, materials, and real estate sectors. Major indices gained broadly, with the S&P 500 up 0.7%, Dow up 1.1%, and Nasdaq 100 up 0.5%.

Astera Labs is experiencing explosive AI-driven growth, but faces underlying challenges including margin pressure, Amazon-related concerns, and premium valuation. The stock presents a risky yet potentially bullish setup, with the company's ability to manage margins potentially determining whether it becomes a superstar or a high-valuation trap.

Credo Technology has emerged as a critical enabler of AI infrastructure, leading the market in Active Electrical Cables (AECs) for high-speed data center interconnects. The company demonstrated strong Q3 FY2026 results with 201% YoY revenue growth and 68.5% gross margins. However, at a $19 billion valuation (24x EV/TTM Sales and 30.5x forward earnings), the stock has priced in significant growth expectations with little room for error. Key risks include customer concentration (two customers represent 80% of Q2 revenue) and potential competitive threats, though the analyst remains cautiously optimistic on fundamentals while avoiding new positions at current levels.

Applied Digital and Astera Labs are positioned to capitalize on the rapidly expanding AI data center market, projected to grow at 31.6% CAGR through 2030. Applied Digital has secured $16 billion in non-cancellable 15-year lease contracts for 600 megawatts of capacity, while Astera Labs supplies critical high-speed networking solutions for AI infrastructure with strong revenue growth of 92% year-over-year.

Ten large-cap stocks experienced significant declines last week. Pinterest fell 21.73% after missing Q4 earnings and issuing weak Q1 guidance with multiple downgrades. DraftKings dropped 18.65% following disappointing Q4 results and below-estimate FY26 guidance. Other major losers included Astera Labs (down 23.74%), Medpace (down 20.69%), Zillow (down 20.89%), and Flutter Entertainment (down 18.88%), driven by earnings misses, analyst downgrades, and broader tech sector concerns about AI trade profitability.

The article argues that AI infrastructure 'pick-and-shovel' companies are better positioned than big tech firms to profit from the AI boom. With hyperscaler CAPEX spending projected to reach $515 billion in 2026, infrastructure providers like Nebius Group, IREN, Astera Labs, TeraWulf, and Cipher Mining offer stable revenues, high margins through GPU-as-a-Service models, and exposure to growing AI demand regardless of which AI platform wins.

Futurum Equities released its AI Fifteen report identifying 15 non-Mag7 companies disrupting the AI economy. Broadcom leads the list as the 'Uncle Sam of AI' with AI chip revenue accelerating to $6.5 billion and guidance of $8.2 billion next quarter (~100% YoY growth), with a $73 billion backlog. TSMC, Palantir, ASML, and Micron round out the top 5. The AI server market is experiencing 28% growth with Broadcom and AMD as significant players alongside Nvidia.

Astera Labs announced an expanded roadmap for its Scorpio X-Series Smart Fabric Switches, beginning initial production with features including increased radix support, platform-specific protocols, in-network computing, Hypercast technology, and optical connectivity. The merchant scale-up switching market is projected to reach $20 billion by 2030, driven by hyperscalers deploying larger AI clusters with complex workloads requiring flexible, purpose-built connectivity solutions.

U.S. stocks rebounded cautiously on Wednesday following Trump's remarks at Davos regarding Greenland as a national security priority. The market showed restraint with the Dow up 0.6%, while the oil and gas sector surged due to forecasts of an Arctic blast. Natural gas futures jumped nearly 24%, marking the largest two-day gain on record. Mixed earnings results saw Netflix decline despite beating estimates, while Halliburton rallied on strong earnings. Bitcoin fell for a seventh consecutive session.

While the AI industry is projected to grow significantly from $255 billion in 2025 to $1.7 trillion by 2031, not all AI stocks will deliver exceptional returns. The article identifies tech infrastructure as a booming sector, while software companies must possess strong economic moats to succeed long-term. Key opportunities exist in AI-optimized data centers, semiconductor chips, and emerging quantum computing technology.