Recently, I’ve noticed a rather interesting market phenomenon—in 2026, what was originally seen as a traditional networking and telecommunications (networking equipment) industry has become one of the hottest investment themes in the AI wave.

First, let’s talk about what networking stocks are. Simply put, they are shares of companies that make network communication equipment and components. They cover the entire supply chain—from fiber-optic cables and base stations to switches and routers, and now the hottest products such as Wi-Fi 7 sharing devices and low-Earth-orbit satellite receiving equipment. But over the past few years, networking stocks have evolved beyond being just about communication equipment; they are turning into transmission infrastructure that supports AI computing.

Why is 2026 especially important for networking stocks? There are two major drivers. One is the U.S. government’s BEAD program: the $42.5 billion in broadband construction funding finally enters a full-scale construction phase, which is a tangible earnings tailwind for fiber-optic and networking equipment manufacturers. The other is the transmission bottleneck brought about by the explosion of AI compute power—traditional copper lines can no longer keep up, making optical communications technology a must-have. Combined with the popularization of AI PCs and AI smartphones, demand for bandwidth is growing more and more intense, and Wi-Fi 7 penetration is expected to enter a breakout phase.

From the perspective of the industry chain, opportunities for networking stocks are distributed across three tiers. The upstream tier is where the most money is made—things with high technical barriers such as chip design, optical communication components, and high-end PCB boards. The midstream tier is Taiwan’s strength: assembling components into complete equipment. Changxin makes switches, Qiqi makes broadband access, and Huaxingguang makes optical modules—these are all globally top-tier companies. The downstream tier is the true buyer, such as major cloud service companies like Amazon and Google building AI data centers, as well as telecommunications operators promoting 5G and fiber-to-the-home.

Speaking of specific investment targets, in Taiwan’s market, Zhenxing is leading in the 800G switch market and is already positioning for the 1.6T specifications, making it the number-one beneficiary of AI data center construction. Uniy focuses on silicon photonics and CPO technology, which is the segment that benefits most from the broader trend of “optics moving in while copper moves out.” Qiqi’s product line is the most comprehensive, ranging from Wi-Fi 7 to satellite communications, and it is also best positioned to directly capture the benefits of the BEAD program. Huaxingguang has steady growth in optical transceiver modules, and with the wave of upgrades from 400G to 800G, its performance has been quite strong.

In the U.S. market, Arista Networks performs exceptionally well in low-latency networking solutions specifically for AI training, and in this wave it has even outperformed traditional leader Cisco. Broadcom controls the chip lifeline: Wi-Fi 7, switch chipsets, and AI custom chips are all within their domain. As a leader in fiber-optic materials, Corning benefits from U.S. manufacturing policies and is nearly in a league of its own under the BEAD program. Lumentum has seen a number of recent technical breakthroughs in optical components and CPO, making it something of a dark horse in this AI optical communications boom.

However, investing in networking stocks also requires paying attention to several risks. Government bid funding can be slow to be reviewed strictly, so earnings may be recognized in batches rather than spiking all at once. Technological replacement is a tough, head-on test—second-tier companies that can’t meet CPO thresholds are likely to be sidelined. You also need to closely monitor the inventory levels of major cloud service companies; once data center construction slows, networking companies may face significant inventory pressure. Geopolitics is another variable: the BEAD requirements include a U.S. manufacturing proportion, so when Taiwanese companies set up overseas factories, both costs and risks will increase. Finally, there’s the issue of valuation—many networking stocks have already been pushed to historical highs, and even a slight shortfall in revenue growth versus expectations can easily trigger major corrections.

Overall, driven by the dual engines of AI transmission and U.S. infrastructure, networking stocks in 2026 are indeed a promising main theme. But instead of blindly chasing higher prices in stocks that only have a “theme” without solid fundamentals, it’s better to focus on leading companies that truly have technological barriers, while closely monitoring bid/contract progress and changes in inventory—so you can earn steadily in this wave.