PER, EPS, PBR and BPS are calculated in-house from the last 4 quarters (2025Q3–2026Q2) · Dividend yield is based on ₩86 per share · Prices as of the 2026-10-02 close
FiberPro has delivered two consecutive years of simultaneous revenue and margin expansion built on fiber-optic gyroscope-based inertial navigation products, though quarter-to-quarter results swing significantly due to the lumpy nature of defense contracts.
FY2025 consolidated revenue reached KRW 43.47 billion (+32.0% YoY), with operating margin expanding to 23.3%
The integrated navigation system (PNT/IMU) segment accounted for more than 60% of Q1 2026 revenue, the company's core pillar
The company secured a series of large supply contracts with Hanwha Aerospace, Viavi Solutions, and Inertial Labs
A value-up plan involving treasury stock was announced in March 2026, alongside a confirmed FY2025 cash dividend of KRW 86 per share
Quarterly operating margins have swung between roughly 20% and 33%, limiting earnings predictability
Founded in 1997 out of a KAIST fiber-optics laboratory, FiberPro is a fiber-optic sensor and precision optics specialist that listed on KOSDAQ in 2022 through a SPAC merger.
Its core competitive edge is polarization control technology built on the Sagnac Effect, which underpins its fiber-optic gyroscopes (FOG), inertial measurement units (IMU), and integrated navigation systems (PNT Solutions).
The business is organized into four segments—integrated navigation systems, optical measurement instruments, photonic integrated devices, and fiber-optic sensing systems (DTS/FBG)—and as of Q1 2026, integrated navigation systems represented the largest share of revenue at 60.37%, followed by optical measurement instruments at 25.74%, photonic integrated devices at 10.78%, and fiber-optic sensing systems at 1.97%.
By segment, integrated navigation systems recorded KRW 8.62 billion, or 60.37% of total revenue, the largest share, while optical measurement instruments generated KRW 3.68 billion (25.74%), photonic integrated devices KRW 1.54 billion (10.78%), and fiber-optic sensing systems KRW 281 million (1.97%).
In defense, the company's key customers are large domestic defense contractors including Hanwha Aerospace and LIG Nex1, while overseas it supplies IMUs to companies such as Viavi Solutions and Inertial Labs.
In aerospace, FiberPro has previously supplied navigation gyroscopes for the Naro and Nuri space launch vehicles, has been selected as a developer of satellite-grade gyroscopes, and participates as an invited member of Korea's Urban Air Mobility (K-UAM) consortium.
Demand for solutions combining inertial sensors with anti-jamming GNSS technology has been expanding in the defense and autonomous driving sectors within the integrated navigation segment, while the photonic integrated device segment has seen rising revenue driven by growing demand for quantum cryptography and high-speed data center communication.
Competitively, FiberPro holds a unique position as the only domestic company to localize and mass-produce FOG technology, though its revenue scale remains modest compared with global defense and aerospace electronics majors such as Honeywell and Safran.
| Quarter | Revenue | Operating profit | Op. margin |
|---|---|---|---|
| 2025Q2 | ₩10.4B | ₩2.1B | 20.0% |
| 2025Q3 | ₩13.8B | ₩3.8B | 27.8% |
| 2025Q4 | ₩12.2B | ₩3B | 24.3% |
| 2026Q1 | ₩14.3B | ₩4.8B | 33.3% |
| 2026Q2 | ₩13.3B | ₩2.7B | 20.2% |
| Year | Revenue | Operating profit | Net income (parent) | Op. margin | ROE | Debt-to-equity |
|---|---|---|---|---|---|---|
| 2022 | ₩18.8B | ₩3.4B | -₩1.7B | 18.2% | −5.9% | 36.3% |
| 2023 | ₩19.4B | ₩2.6B | ₩2.9B | 13.5% | 8.9% | 27.2% |
| 2024 | ₩32.9B | ₩7.2B | ₩7.2B | 21.9% | 18.5% | 29.1% |
| 2025 | ₩43.5B | ₩10.1B | ₩9.3B | 23.3% | 20.3% | 32.6% |
Consolidated basis (financial statements including subsidiaries) · Final figures from DART filings · Net income attributable to owners of the parent · Data as of 2026-09-04
FiberPro's FY2025 consolidated revenue came in at KRW 43.47 billion, up 32.0% from KRW 32.94 billion in FY2024, while operating profit rose to KRW 10.12 billion, lifting the operating margin to 23.3% from 21.9% a year earlier.
Net income attributable to owners reached KRW 9.31 billion, up 30.2% from KRW 7.15 billion in FY2024, continuing a pattern of simultaneous top-line growth and margin expansion.
In FY2023, revenue was KRW 19.39 billion with operating profit of KRW 2.62 billion (13.5% margin), a comparatively thinner margin, while FY2022 revenue of KRW 18.83 billion and operating profit of KRW 3.42 billion (18.2% margin) nonetheless resulted in a net loss of KRW 1.73 billion, highlighting a gap between operating and bottom-line results that year.
On a quarterly basis, revenue of KRW 10.37 billion and operating profit of KRW 2.08 billion (roughly 20% margin) in Q2 2025 rose to a quarterly peak of KRW 13.76 billion in revenue and KRW 3.83 billion in operating profit (roughly 28% margin) in Q3 2025.
That eased somewhat in Q4 2025 to KRW 12.23 billion in revenue and KRW 2.97 billion in operating profit (roughly 24%), before margins expanded sharply again in Q1 2026 to KRW 14.28 billion in revenue and KRW 4.76 billion in operating profit (roughly 33%).
Q2 2026 saw revenue of KRW 13.34 billion and operating profit of KRW 2.70 billion (roughly 20%), with margins compressing again versus the prior quarter—underscoring how delivery timing on defense and aerospace orders can swing quarterly results.
Over the trailing four quarters (Q3 2025 through Q2 2026), combined revenue reached KRW 53.60 billion and owners' net income KRW 13.51 billion, a run-rate that already exceeds the entirety of FY2025's full-year results.
On the cash flow side, operating cash flow was a healthy KRW 5.20 billion in 2025 and KRW 5.91 billion in 2024, but turned negative at KRW -1.26 billion in 2023, reflecting some volatility tied to working-capital swings in receivables and inventory.
The debt ratio edged up from 27.2% in 2023 and 29.1% in 2024 to 32.6% in 2025 after standing at 36.3% in 2022, remaining at a stable level in the low-to-mid 30% range throughout.
The global market for high-performance fiber-optic gyroscope (FOG)-based precision inertial sensors and the anti-jamming GNSS market are both assessed to be in a phase of moderate structural growth.
The high-performance FOG-based precision inertial sensor market is expected to grow at an average annual rate of 6% through 2029, while the anti-jamming GNSS market is projected to grow at an average annual rate of 9.4%.
The distributed fiber-optic sensing (DAS/DTS) segment appears to be growing at a relatively faster pace.
One research note assessed that the global distributed fiber-optic sensor (DAS/DTS) market is projected to grow at a CAGR of 12.4% from 2026 to 2035, with Korea's fiber-optic sensor market also expected to expand structurally at a CAGR of 9.46%.
On the demand side, expanding global exports of Korean defense products, rising demand for precision navigation amid the spread of unmanned systems and autonomous driving, and growing demand for optical communication components tied to data center and quantum cryptography infrastructure expansion are all contributing factors.
Competitively, FiberPro holds a position as effectively the only domestic FOG mass-producer with an established defense supply relationship, but on a global scale there remains a gap in revenue scale and product portfolio breadth compared with long-established majors such as Honeywell and Safran in inertial navigation.
Against this backdrop, the company appears to be pursuing a strategy of capturing niche market share through price competitiveness and linkage with domestic defense export programs.
It should also be noted that the industry is inherently sensitive to policy and project variables such as defense budget allocation, export approval procedures, and aerospace project schedules, which makes short-term order volatility difficult to avoid.
FiberPro has recently expanded its order backlog through supply agreements with major defense and aerospace customers. The KRW 17.9 billion contract with Hanwha Aerospace for materials used in export inertial measurement units is regarded as the largest single order in the company's history.
In addition, IMU export contracts worth KRW 4.89 billion with Viavi Solutions of the United States (January 2026) and KRW 4.03 billion with Inertial Labs (May 2025) have continued to add to overseas supply performance.
On shareholder returns, the company announced a value-up plan including a treasury stock acquisition and disposal plan on March 26, 2026, and confirmed a cash dividend of KRW 86 per common share for FY2025.
That said, the specific size and execution schedule of the treasury stock purchase do not appear to have been disclosed as of this report.
On the regulatory filing calendar, the next regular filing—the Q3 2026 quarterly report—must be submitted by the statutory deadline of November 16, 2026, and actual filings often occur earlier than the deadline.
On the business side, diversification into new applications appears to be gradually progressing, including quantum cryptography and data center demand within the photonic integrated device segment and infrastructure monitoring demand for fiber-optic sensing systems, beyond the core defense-oriented integrated navigation system business.
The company does not appear to have issued official quantitative revenue or profit guidance, so future earnings trends are likely to depend substantially on the delivery timing of defense orders and the signing of new contracts.
FiberPro has posted two consecutive years of simultaneous revenue and operating profit growth, with its earnings base expanding since the 2022 net loss, and this fundamental improvement appears to be reflected in the current trading multiples.
The current price-to-earnings multiple is understood to be trading near the upper end of its own historical range formed since the company established a sustained profit base, and the stock also trades at a certain premium relative to net asset value.
On dividends, a cash payout was made based on FY2025 results, but the yield itself appears to sit below the electronics components sector average, suggesting that expectations for earnings growth play a larger role in price formation than the dividend itself.
Given the company's small market capitalization, it should also be considered that the stock tends to react with relatively larger volatility to events such as quarterly earnings releases or individual order disclosures.
Valuation judgments should continue to be reassessed as additional information becomes available, including the direction of upcoming quarterly results and new order disclosures.
PER, EPS, PBR and BPS are all calculated in-house (the same method as Naver and Toss) · Dividend yield = cash dividend per share from DART filings (supplemented by KRX) ÷ current price · As of 2026-09-04
Both revenue and operating profit grew by more than 30% in each of FY2024 and FY2025, with operating margin expanding from 21.9% to 23.3%. Operating margin rose to roughly 33% in Q1 2026, reflecting profitability leverage from an improving product mix. Owners' net income has maintained a consistent positive trend since the FY2022 net loss.
The KRW 17.9 billion contract with Hanwha Aerospace is regarded as the company's largest single order to date, and overseas IMU supply contracts with Viavi Solutions and Inertial Labs have followed.
This aligns with the broader expansion of Korean defense exports and could strengthen the company's position within the defense value chain. However, detailed terms of individual contracts are often undisclosed for defense security reasons.
The photonic integrated device segment appears to be growing on the back of increasing demand for quantum cryptography and high-speed data center communication. The fiber-optic sensing system business is also expanding based on infrastructure monitoring demand across power grids, tunnels, and railways.
A track record of participation in aerospace and K-UAM initiatives can also be viewed as a factor in long-term business diversification.
Operating margin rose to roughly 33% in Q1 2026 before falling back to roughly 20% in Q2, illustrating significant quarter-to-quarter variation.
Defense and aerospace products tend to see revenue concentrated around individual contract delivery dates, making it difficult to draw trend conclusions from any single quarter's results. This volatility could well recur in future quarters.
Market capitalization is relatively large versus the current scale of earnings, which could heighten share price sensitivity to even small changes in results. The current trading multiple appears to sit near the upper end of its own range formed since the company established a sustained profit base. Should future results fall short of expectations, there could be increased pressure for multiple compression.
A substantial portion of revenue is concentrated among a small number of large defense customers such as Hanwha Aerospace and LIG Nex1, meaning results can be swayed by changes in any single customer's order schedule.
Defense exports are subject to government approval procedures and budget allocations in each country, exposing the business to policy variables. Overseas geopolitical tensions can act as a demand driver but can equally pose supply chain and export regulation risks.
Individual supply contracts are often disclosed with limited detail due to defense security considerations, making it difficult for outside observers to accurately track order backlogs and progress. If contract delivery timing is concentrated in a particular quarter, quarterly earnings variation can widen. This acts as a constraint on investors' ability to assess underlying trends.
Defense exports are influenced by each country's export approval processes, defense budgets, and diplomatic relations, and order schedules can be delayed or cancelled due to policy changes.
Shifts in geopolitical conditions in regions such as the Middle East can increase demand in the short term but could equally lead to supply chain disruptions or sanctions risk. Such external variables lie largely outside the company's control.
As a relatively small-cap KOSDAQ stock, trading volume and share price volatility can be elevated.
The size and execution timeline of the treasury stock acquisition and disposal included in the value-up plan have not yet been specified, so the actual shareholder-return impact will need to be confirmed through future disclosures. Supply-and-demand factors typical of small-cap stocks can affect the share price independent of fundamentals.
Statutory filing deadline for the Q3 2026 quarterly report; worth checking whether revenue growth and the direction of operating margin are sustained.
Worth monitoring execution progress on existing large contracts such as the Hanwha Aerospace agreement and whether any new single-sale supply contract disclosures emerge.
Worth checking whether the specific size and execution schedule of the March value-up plan (treasury stock acquisition/disposal) are disclosed.
Worth tracking changes in the revenue share of non-defense segments such as photonic integrated devices and fiber-optic sensing systems, and whether new customers are secured.
Built around fiber-optic gyroscope-based inertial navigation technology, FiberPro has delivered simultaneous revenue and operating profit growth in FY2024 and FY2025, and while quarterly results in the first half of 2026 have fluctuated, the combined profit level continues to run above the full-year FY2025 total.
Large supply contracts with Hanwha Aerospace, Viavi Solutions, and Inertial Labs are confirmed facts that support the company's position within the defense and aerospace value chain.
That said, quarterly operating margins have swung widely from the low-20% to low-30% range, and a structural limitation exists in that much of the contract detail remains undisclosed for defense security reasons.
On valuation, the stock appears to trade in a premium range that reflects its expanding profit base, and with a dividend yield below the sector average, growth expectations appear to weigh more heavily in price formation than income.
Looking ahead, the Q3 regular filing due in November, any additional order disclosures, and the extent to which the value-up plan is fleshed out will likely serve as key indicators of both earnings direction and shareholder-return policy.
Investment judgments should factor in both the earnings volatility inherent to defense order cycles and the share price sensitivity associated with the company's small market capitalization.
Report written 2026-10-01 · Data as of 2026-09-30
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