Goldman Sachs Says That This Is the Next Big AI Infrastructure Megatrend With a 9X Growth Potential. 3 Stocks You Can Buy to Capitalize on This $154 Billion Opportunity

The article says AI-driven demand could lift the optical networking TAM 9x to $154 billion in two years, creating a persistent supply shortage that benefits Lumentum, Ciena, and Coherent. Lumentum's non-GAAP EPS rose more than 4x to $2.37 and is expected to jump 236% this quarter; Ciena posted 290% EPS growth and raised full-year guidance with backlog up more than $600 million to $7.7 billion; Coherent grew EPS 55% to $1.41 and is now seeing orders into calendar 2028. The piece argues pricing power and long-dated demand should sustain above-average earnings growth for several years.

Analysis

The important second-order effect is that this is not just a demand story for optics, it is a pricing-power cycle created by a multi-year capacity bottleneck. When lead times stretch and customers sign long-dated LTAs, the margin pool shifts from end-demand volatility to supply allocation; in that regime, the vendors with the cleanest manufacturing scale and the best mix of proprietary components usually compound faster than the headline demand growth. That supports a longer runway than most investors assume, but it also means the market can remain underestimating incremental gross margin leverage for several quarters.

The more interesting implication is competitive asymmetry. AI data center buildouts reward suppliers that can deliver at the highest speeds with the least power loss and the most reliable packaging, which tends to compress the field over time into a small number of qualified vendors. That raises the probability that smaller or less vertically integrated players lose share even if the overall market keeps expanding, while adjacent component makers and contract manufacturers may see margin pressure as customers push for guaranteed capacity and priority allocation.

The main risk is not demand disappearing; it is supply normalization arriving just as estimates peak. If capex budgets wobble or hyperscalers defer deployments, the optics trade can de-rate quickly because the stock move has already front-run several years of growth. There is also a non-trivial risk that accelerated capacity additions by incumbents and new entrants create a 2028-2029 oversupply pocket, which would hit multiple expansion before it shows up in reported earnings.

Key Decisions for Investors

• Long LITE / CIEN on a 3-6 month horizon; use pullbacks to add, targeting continued multiple support from supply scarcity and margin expansion. Risk/reward is favorable as long as backlog converts without a demand air pocket.
• Prefer CIEN vs. a basket of optics peers on a relative basis: its backlog visibility gives the cleanest near-term earnings revision setup over the next 2 quarters.
• Pair long LITE or CIEN vs. short a diversified AI hardware basket if you want to isolate the supply-constrained optics bottleneck from broader AI capex beta; this reduces exposure to a general AI drawdown.
• Avoid chasing COHR after the move; it remains attractive structurally, but the market is already pricing a longer-duration growth cycle. Better entry is on any post-earnings gap-down or broad semiconductor selloff.
• Buy short-dated downside protection on the group into next earnings cycle: the key risk is not the quarter, but forward guidance resetting if hyperscaler ordering pauses for even one cycle.