Hey everyone, Hirokichi here.
Today I’m looking at Fujikura (TYO: 5803), a Japanese wire and cable maker. On August 7, 2026, the company released its Q1 earnings along with another upward revision to its full-year guidance, and the stock jumped +12.82% that day and another +7.62% on August 10. Demand for optical fiber used in generative AI data centers is driving the rally, and the full-year net profit forecast has now been raised to 2.1 times last year’s level. At the same time, this is a stock that lost nearly half its value in about a week back in May, sometimes nicknamed the “Fujikura Shock” by Japanese investors. Let’s walk through the numbers and what might come next.
What Kind of Company Is Fujikura?
Founded in 1910, Fujikura is one of Japan’s “big three” wire and cable makers, alongside Sumitomo Electric Industries and Furukawa Electric. It started out making power cables, but today its biggest profit driver is the Telecommunications segment, which makes up close to half of total sales. The core of this business is optical fiber cable and optical components (parts that transmit data using light) for data centers. Training and running generative AI models requires huge numbers of GPUs (chips originally designed for graphics, now widely used for AI computation) to be connected by high-speed networks, and Fujikura supplies much of the cabling that makes that possible. By region, the US accounts for 47% of sales, so US data center capex trends flow almost directly into Fujikura’s results. The company also makes automotive wiring harnesses (bundled in-car wiring), electronics components for smartphones, and runs an energy-related business.
Share Price and Valuation
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On valuation, as of 3:30pm on August 10, 2026, Fujikura’s market cap was roughly 9.9 trillion yen. Its forward P/E ratio (price-to-earnings ratio, based on company guidance) stood at 28.34x, and its P/B ratio (price-to-book ratio, actual basis) was 15.18x, both well above the average for TSE Prime-listed companies (P/E of roughly 18x). That tells you the market is pricing in a lot of future growth. The forecast dividend yield is just 0.68%, so this is clearly a stock people are buying for growth rather than income.
Earnings Check
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As the chart shows, results were roughly flat through fiscal year 2024, then took off starting in FY2025. For FY2026 (the year ended March 2026), Fujikura posted revenue of 1,182.4 billion yen (up 20.7% year-on-year), operating profit of 188.7 billion yen (up 39.2%), and net profit attributable to shareholders of 157.2 billion yen (up 72.5%). Growth in AI-driven data center demand pushed the Telecommunications segment sharply higher.
The momentum continued into Q1 of FY2027 (April-June 2026), with revenue of 402.0 billion yen (up 50.1% year-on-year), operating profit of 104.8 billion yen (up 155.1%), ordinary profit of 111.5 billion yen (up 166.8%), and net profit of 80.4 billion yen (up 156.8%), all-time quarterly records at every profit line. On the back of this, management has raised full-year guidance twice. The original forecast (as of May 2026) called for revenue of 1,243.0 billion yen and operating profit of 211.0 billion yen. The June 18 revision lifted this to 1,462.0 billion yen in revenue and 310.0 billion yen in operating profit, and the August 7 revision pushed it further to 1,755.0 billion yen in revenue (up 48% year-on-year), 432.0 billion yen in operating profit (2.3x), and 326.0 billion yen in net profit (2.1x). That would mark a third straight year of record profit.
Growth Strategy: Where Is Fujikura Headed?
On May 19, 2026, Fujikura unveiled a new three-year mid-term business plan covering fiscal 2026-2028. The plan centers on three focus areas, information infrastructure, information storage, and information devices, backed by a total of 530 billion yen in growth investment. The centerpiece is expanding production of its high-density optical fiber cable, “SWR/WTC,” used in data centers: about 40 billion yen in Japan and up to 260 billion yen in the US, aiming to roughly quadruple production capacity versus fiscal 2022. Longer term, the company has set a fiscal 2035 target of 2.8 trillion yen in revenue and 580 billion yen in operating profit.
Here’s the interesting part: the FY2028 target laid out in that mid-term plan, 1.6 trillion yen in revenue and 315 billion yen in operating profit, has already been surpassed by the current FY2027 guidance (1,755.0 billion yen in revenue, 432.0 billion yen in operating profit), just three months after the plan was announced. In other words, actual demand for generative AI and data center infrastructure is running roughly a year ahead of what the company itself expected when it drew up the plan.
On shareholder returns, Fujikura has said it now targets a payout ratio (the share of profit paid out as dividends) of around 40%, up from 30% previously. That said, the FY2027 dividend forecast remains unchanged at 38 yen per share annually (19 yen interim, 19 yen year-end) as of the June 18 announcement, it has not yet been revised to reflect the much bigger August 7 profit upgrade. Whether management raises the dividend forecast alongside the Q2 earnings release, expected around November, is worth watching.
Bull Case and Bear Case for the Stock
On the bullish side:
(1) Orders for data center optical components and fiber are expanding not just in the US but in other regions too, as generative AI adoption and cloud infrastructure spending continue to grow.
(2) Capacity expansion under the mid-term plan is underway, and easing supply constraints could make it easier to capture even more orders going forward.
(3) Tight supply-demand conditions are letting price increases stick, improving margins not just in Telecommunications but also in the Energy and Automotive segments.
On the bearish side:
(1) Valuation is stretched. A P/E of 28x and P/B of 15x are well above the TSE Prime average, meaning expectations are running ahead of results, and any earnings miss can trigger a sharp sell-off, as the May crash demonstrated.
(2) There’s real uncertainty about how long the AI infrastructure investment boom lasts. Market watchers have flagged risks that power supply constraints, parts shortages, and supply chain bottlenecks could delay data center construction and completion. If a global slowdown cools capex appetite among hyperscalers (large cloud providers), orders to Fujikura could soften.
(3) Commodity price swings (especially copper), currency fluctuations, rising depreciation costs from large capacity investments, and growing interest-bearing debt tied to increased working capital are all balance-sheet risks worth watching over the medium term.
My personal take: the underlying demand story here is real, the earnings numbers back it up, and this isn’t just AI-hype pricing. That said, May’s crash is a reminder that this isn’t a stock where “good earnings = the stock goes up” in any simple way; it reacts violently to any gap between expectations and results. Given shares are already trading near their highs, I’d lean toward building a position gradually around earnings events rather than buying all at once, if you’re going to own this name at all.
Bottom Line
Fujikura is a growth stock riding generative AI and data center demand to a third straight year of record profit. The August 7 earnings release raised full-year net profit guidance to 2.1x last year’s level, and results are already outpacing the targets set in May’s mid-term plan. At the same time, a P/E of 28x, a P/B of 15x, and a share price that has swung nearly threefold between its 52-week low and high are things to keep firmly in mind before buying. Weigh both the bull and bear cases here and decide what fits your own investing approach. Take it slow and steady, see you in the next one!
日本語版はこちら → 【銘柄分析】フジクラ(5803)の今後は？純利益2.1倍上方修正と株価5,580円の実力を解説
* This article is for informational purposes only and does not recommend buying or selling any specific stock. Please make investment decisions at your own responsibility.
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