Business
Buy or Sell on Strong AI Photonics Momentum?
NEW YORK — Tower Semiconductor Ltd. (NASDAQ: TSEM) has emerged as a notable performer in the semiconductor sector in 2026, driven by robust demand for its specialized analog and mixed-signal technologies, particularly in silicon photonics for artificial intelligence data centers. Trading near $275-$288 in late May, the stock carries a Moderate Buy to Buy consensus from analysts, with recent contract wins and upbeat guidance tilting sentiment toward accumulation despite an already strong run.
The Israeli foundry reported solid first-quarter 2026 results on May 13, with revenue reaching $414 million, up 15% year-over-year. Gross profit rose 52% to $111 million, while operating profit nearly doubled to $65 million. Net profit increased to $65 million, or $0.58 per basic share, beating expectations and reflecting strong execution amid growing AI infrastructure needs.
Management issued optimistic guidance for the second quarter, projecting record revenue of $455 million, plus or minus 5%. This forecast exceeds analyst estimates and signals continued sequential growth throughout 2026. The upbeat outlook was reinforced by the announcement of $1.3 billion in silicon photonics contracts for 2027 revenue, backed by $290 million in customer prepayments to secure capacity.
Analyst coverage remains largely positive. Across five to eight firms, the consensus leans Moderate Buy, with several recent price target increases. Targets range from a low of around $142 to highs of $335, with averages near $276-$314, implying modest to solid upside from current levels. Benchmark raised its target to $335 from $230, while Susquehanna lifted to $330 and Wedbush to $300, citing momentum in photonics and AI-related platforms.
For investors considering a buy position, the bull case centers on Tower’s strategic positioning in high-growth niches. Silicon photonics, which enables high-speed optical data transmission essential for AI data centers, has become a key differentiator. The company’s specialized manufacturing capabilities in analog, mixed-signal and power management technologies serve diverse end markets including automotive, medical, industrial and defense, providing some buffer against pure cyclical exposure.
Recent wins in silicon photonics underscore accelerating adoption of optical solutions to address power and bandwidth challenges in AI infrastructure. Analysts project sustained revenue and margin expansion as these contracts ramp. Tower’s fab strategy, including partnerships and capacity investments, supports long-term scalability.
Bear cases highlight risks common to the semiconductor industry. While current momentum is strong, the sector remains cyclical, and any slowdown in AI capital spending could pressure results. Valuation has expanded significantly following the stock’s sharp gains, leaving less margin of safety if growth moderates. Competition from larger foundries and potential supply chain disruptions also warrant monitoring.
Financially, Tower has demonstrated improving profitability and operational efficiency. The Q1 beat and Q2 guide reflect successful navigation of a complex environment, with management highlighting strength across multiple platforms. Positive free cash flow trends and a solid balance sheet provide flexibility for investments and potential shareholder returns.
Broader industry tailwinds favor specialized players like Tower. Explosive growth in AI data centers drives demand for advanced connectivity solutions, where silicon photonics is gaining traction. Tower’s focus on differentiated technologies rather than competing directly in leading-edge logic positions it to capture value in enabling layers of the semiconductor ecosystem.
Portfolio managers often view TSEM as a thematic AI infrastructure holding within technology allocations. Its smaller market capitalization compared to giants offers higher beta to sector trends, appealing to growth-oriented investors. Position sizing should reflect volatility typical of semiconductor names. Near-term catalysts include Q2 earnings and updates on photonics ramp.
Risks include customer concentration in key growth areas, geopolitical factors affecting operations in Israel, and execution on capacity expansions. Macroeconomic shifts impacting end-market demand could also influence performance.
In the current environment, Tower Semiconductor stands out as a beneficiary of the AI buildout with tangible contract momentum and improving fundamentals. While not without risks inherent to the cyclical chip industry, recent results and analyst enthusiasm support a constructive outlook for those with longer time horizons and conviction in optical and analog semiconductor growth.
The decision to buy or sell ultimately depends on individual risk tolerance, portfolio diversification and views on the sustainability of AI infrastructure spending. Those bullish on continued data center investment may see current levels as reasonable despite the recent rally. Others may prefer to monitor upcoming results for confirmation of margin trends before adding exposure.
As with any equity in the dynamic semiconductor sector, thorough due diligence is essential. Tower’s trajectory in 2026 will likely hinge on its ability to convert strong backlog into sustained revenue growth while navigating a competitive and capital-intensive landscape. The company’s progress in silicon photonics positions it as a name worth watching amid the ongoing transformation of AI hardware infrastructure.
Business
Northern Small Cap Value Fund Q1 2026 Commentary
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Ken Griffin urges NYC business leaders to fight socialist mayor Mamdani
Manhattan Institute expert Adam Lehodey says NYC Mayor Zohran Mamdani’s outreach to Wall Street leaders signals a recognition that New York cannot fund progressive priorities without keeping businesses and wealthy investors in the city.
Billionaire Citadel founder Ken Griffin is encouraging New York’s business leaders to take on socialist Mayor Zohran Mamdani, warning that the city’s future could be at risk if employers and investors stay quiet.
“They need to find their voice and fight for their city,” Griffin said Thursday at a Manhattan event, according to Bloomberg.
“My advice is to speak up. What’s the worst that’s going to happen? It will be that New York empties of talent and that’s a catastrophe. If the mayor wants to say a few words about you, your record speaks for itself: You create jobs, you create value and you pay taxes.”
MAMDANI’S WALL STREET COURTSHIP SPARKS CRITICISM OF ANTI-BILLIONAIRE AGENDA

The Citadel founder is clashing with New York City Mayor Zohran Mamdani over taxes targeting the ultra-wealthy and intensifying crime, reviving the same tensions that drove him to pull his business and billions out of Chicago. (Spencer Platt/Aaron Schwartz/Bloomberg/Getty Images / Getty Images / Getty Images)
Griffin’s remarks mark the latest chapter in an ongoing clash between Wall Street’s billionaire class and Mamdani, whose proposals to raise taxes on wealthy New Yorkers and luxury property owners have drawn fierce criticism from business leaders concerned about the city’s economic competitiveness.
The financial titan, whose net worth is estimated at $48.3 billion according to the Bloomberg Billionaires Index, argued that New York’s corporate leaders should focus on the long-term future of the city rather than short-term political battles.
BILLIONAIRE KEN GRIFFIN SAYS CITADEL’S CHICAGO EXODUS WAS ‘NOT HARD,’ CITES CRIME, TAXES
“Everything should be viewed through the lens of, Citadel will be here far longer than he’ll be mayor,” Griffin said.
The comments come as Griffin and Mamdani appear to be cautiously opening a dialogue after months of public sparring over taxes, wealth and the city’s business climate.
The socialist mayor recently reached out to Griffin after previously criticizing the billionaire hedge fund manager over his Manhattan penthouse and personal wealth. Mamdani notably stood outside Griffin’s luxury property to promote his proposal to raise taxes on second homes in New York City worth more than $5 million.
CHICAGO KNOWS WHAT HAPPENS WHEN KEN GRIFFIN TURNS ON A CITY, NOW MAMDANI MAY FIND OUT
New York City Mayor Zohran Mamdani’s “pied-a-terre” wealth tax on luxury properties ignites a contentious debate, drawing strong criticism from Citadel CEO Ken Griffin and hedge fund manager Bill Ackman.
The outreach comes as some business leaders warn New York risks alienating major employers and investors — a concern Griffin has raised before in another major American city.
The tensions have fueled concerns among some business leaders that New York could follow a path similar to Chicago, where Griffin spent years criticizing crime, taxes and public policy before moving Citadel’s headquarters to Miami in 2022. The relocation marked the departure of one of the financial industry’s most influential firms and underscored the economic impact that can follow when a major corporate player leaves a major city.
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Citadel founder and CEO Ken Griffin described New York City Mayor Zohran Mamdani’s “tax the rich” video targeting him as a “creepy and weird” political advertisement. (Krisztian Bocsi/Bloomberg via Getty Images / Getty Images)
Griffin has repeatedly pointed to Florida’s business climate as a model and warned that policies targeting high earners and businesses could make New York less competitive.
Griffin said he plans to talk to Mamdani “at some point in the months ahead.”
“Let’s see where he is on the state of policy at that time,” he said. “Actions speak louder than words.”
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