Is "Optical in, Storage out" becoming the new narrative in U.S. stock trading?

As the narrative of AI chip valuations peaking becomes market consensus, capital has begun searching for the next new story tied to AI.

Against this backdrop, "Optics In, Storage Out" has emerged as a brand-new narrative—storage recedes, optical communications takes over.

1. What Is Optical Communications and Why Does AI Depend on It?

The "optics" here refers to optical communications—a communication technology and industry that transmits information using optical signals, primarily through optical fibers. Its core function is converting between electrical and optical signals, with key products including optical modules/transceivers, lasers, photodetectors, optical fibers, and various optical components.

This industry is hardly new, having long served telecom backbone networks and traditional data center interconnect, with strengths in high bandwidth, low loss, and strong anti-interference performance suited for medium-to-long-distance, high-capacity transmission. Currently, however, its focus has shifted to high-speed interconnect within data centers (between racks and servers) and across data centers.

Its connection to AI is built on solid logic: AI model training and inference rely on large-scale GPU/accelerator clusters, where chips must frequently exchange massive amounts of data—gradients, parameters, activation values—generating extremely high east-west traffic. Traditional copper cabling (electrical interconnect) has hit physical limits in high-speed scenarios: short transmission distances, rapid signal attenuation, high power consumption, and severe crosstalk. When single-lane speeds rise above 100G/200G, copper's usable distance shrinks to extremely short ranges, making it impossible to support large-scale cluster expansion.

Optical interconnect addresses these pain points directly: higher bandwidth density, longer transmission distances, and comparatively better energy efficiency. It has become a critical enabler for breaking through AI cluster scaling bottlenecks—GPUs determine the ceiling of compute power, but optics determines whether that compute can truly be woven into a unified network.

2. "Optics In, Storage Out": Stock Price Trends Have Already Told the Story

This narrative holds largely because the stock price trends of the two sectors have diverged clearly enough.

On the storage side, Micron, SK Hynix, and others had already priced in expectations of supply-demand tightness, price increases, and earnings upgrades. As storage price gains moderate, capital positions become crowded, and macro concerns from payroll data and other indicators weigh in, capital has started trimming positions, leaving the sector under pressure against the broader market.

On the optical communications side, the picture is entirely different: AAOI, COHR, LITE and others have surged on earnings validation, accelerated 800G-to-1.6T upgrades, and confirmed demand from AI cluster expansion. Capital is flowing from storage (where expectations are fully priced) into optical communications (where the earnings trajectory is clearer)—the three major U.S. optical communication stocks have risen roughly 40% to 50% since August.

3. LITE's Perfect Earnings Report: Cementing the Narrative

After the U.S. market close last night, LITE delivered what can only be described as a near-perfect earnings report, with virtually nothing to fault.

Revenue and profit both beat market expectations—that hardly needs elaboration. What's truly striking is the margin performance: gross margin broke above 50% for the first time, and operating margin reached 36.4%—across the entire optical communications sector, LITE is likely the only company achieving this level of margin.

Even more remarkable is the guidance: management expects operating margin around 40% next quarter. Notably, management previously believed that single-quarter revenue of $2 billion would be needed to reach roughly 40% operating margin; now, with next quarter's expected revenue at just $1.25 billion, operating margin can approach 40%. Profitability is being delivered far ahead of revenue scale.

Strong earnings, strong guidance, sustained 20%-25% year-over-year revenue growth across multiple consecutive quarters, and accelerating margin expansion—this is exactly the kind of report the market loves to see.

Two details from the earnings call are also worth noting. First, management repeatedly mentioned that laser production capacity remains the biggest constraint—market demand far outstrips supply, and production speed cannot keep pace with customer demand. Second, they directly addressed market skepticism about CPO progress: LITE's largest CPO customer has not delayed production plans at all, but has instead accelerated demand even further, widening the supply-demand gap for ultra-high-power lasers compared to last quarter.

4. Final Thoughts: Before Chasing Optical Communications, Figure Out How to Get In

Looking ahead, COHR, another optical communications giant, will report its latest earnings tomorrow, which warrants close attention. If COHR also delivers strong validation, can the "Optics In, Storage Out" narrative advance even further?

But stepping back, the risks are equally obvious: the three major optical communication stocks have already risen 40-50% since August, and jumping in now carries a heavy chasing-risk; earnings nights are notoriously volatile, and if COHR's results miss expectations tomorrow, the pullback from elevated levels could be severe. The awkwardness of this position lies in—believing in the narrative but not wanting to catch the falling knife at the peak.

In a market driven by narrative rotation, being first doesn't mean being right—those who survive are. Get your tools ready before you board the ride.

Risk Disclosure

This content is for market information sharing only and does not constitute any investment advice, recommendation, or trading commitment. The company earnings data, stock price trends, and industry narrative analysis mentioned herein are compiled from public information and the author's personal judgment, with no guarantee of accuracy, completeness, or timeliness. Historical performance does not indicate future results. Financial markets are highly volatile, especially around major events such as earnings releases, where related securities and derivatives prices may experience sharp fluctuations. Investors should fully understand the associated risks and make independent judgments based on their own financial situation, risk tolerance, and investment objectives, assuming all risks and consequences arising from their investment decisions.