PER, EPS, PBR and BPS are calculated in-house from the last 4 quarters (2025Q3–2026Q2) · Dividend yield is based on ₩0 per share · Prices as of the 2026-10-02 close
FADU turned both revenue and operating profit positive in the first half of 2026, yet a large owners' net loss reappeared in the second quarter, leaving the gap between operating results and the bottom line as the key item to verify.
After turning profitable in 1Q26 with revenue of KRW 59.5bn and operating profit of KRW 7.7bn, the company expanded further in 2Q26 to KRW 73.2bn in revenue and KRW 16.2bn in operating profit.
Despite positive operating profit, 2Q26 showed an owners' net loss of KRW 60.0bn, so the nature of the non-operating items needs to be verified.
The company said disclosed new orders in 2026 exceeded KRW 340bn by late July, and in August it disclosed another controller contract worth about KRW 39.6bn with an overseas NAND maker.
Equity shrank sharply at end-2025 and the debt-to-equity ratio rose to 518.5%, so the balance sheet remains a burden even amid a growth phase.
Trading resumed in February 2026 after the exchange excluded the company from a substantive listing review, but the criminal trial and class action tied to the IPO process are still ongoing.
FADU is a fabless designer of system semiconductors for data centers, and its core product is the controller that acts as the brain of an enterprise SSD (eSSD).
A controller is the system chip that governs read and write operations and optimizes power efficiency, a high-barrier area that must satisfy the specifications of both NAND makers and data center operators.
Revenue rests on two legs: standalone controller supply and finished SSDs built around its own controllers, with controllers going mainly to US big tech customers and finished SSDs, which carry FADU's own controllers, shipped to Taiwan and other Asian markets.
Industry sources indicate FADU supplies controllers to Meta, Google and Nvidia, and the company has said it plans to add one more global big tech customer this year.
In Asia, ADATA unveiled a new product under its enterprise SSD brand TRUSTA using FADU controllers and FDP technology, and the two firms have deepened the supply chain since an April 2025 memorandum of understanding, through the brand launch and a three-way tie-up with Giga Computing.
There is no confirmed disclosure of the segment revenue split, but Shinhan Securities projected that the module (finished product) share of 2026 revenue would rise from about 20% to 30% on higher NAND prices.
On competition, only a handful of players, including Samsung Electronics, Micron, Marvell and Phison, can mass-produce Gen5 data center SSD controllers, and FADU, recognizing the margin ceiling of the finished-product business, is shifting its structure toward custom controller design and production.
Beyond the existing controller business it is building new lines such as power management ICs (PMIC), while broadening a US-centric customer base into Asia.
Overseas exposure is close to total: the company, which generates 99.7% of revenue abroad, received a USD 50mn export award at the December 2025 Trade Day ceremony.
| Quarter | Revenue | Operating profit | Op. margin |
|---|---|---|---|
| 2025Q2 | ₩23.7B | -₩12.6B | −53.1% |
| 2025Q3 | ₩25.6B | -₩11.4B | −44.6% |
| 2025Q4 | ₩23.9B | -₩29.5B | −123.5% |
| 2026Q1 | ₩59.5B | ₩7.7B | 12.9% |
| 2026Q2 | ₩73.2B | ₩16.2B | 22.2% |
| Year | Revenue | Operating profit | Net income (parent) | Op. margin | ROE | Debt-to-equity |
|---|---|---|---|---|---|---|
| 2022 | ₩56.4B | ₩1.5B | -₩227.5B | 2.7% | −554.4% | 66.4% |
| 2023 | ₩22.5B | -₩58.6B | -₩56.7B | −260.6% | −30.7% | 30.8% |
| 2024 | ₩43.5B | -₩95B | -₩90.6B | −218.5% | −94.3% | 37.2% |
| 2025 | ₩92.4B | -₩65.5B | -₩75.6B | −70.8% | −391.7% | 518.5% |
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
The confirmed track record moved from 2022 revenue of KRW 56.4bn with operating profit of KRW 1.5bn to a sharp break in 2023, when revenue fell to KRW 22.5bn with an operating loss of KRW 58.6bn, followed by 2024 revenue of KRW 43.5bn with a KRW 95.0bn operating loss and 2025 revenue of KRW 92.4bn with a KRW 65.5bn operating loss.
Revenue thus more than doubled in 2025 versus 2024, yet the operating margin only narrowed, from -260.6% in 2023 to -218.5% in 2024 and -70.8% in 2025.
By quarter, 2Q25 revenue was KRW 23.7bn with a KRW 12.6bn operating loss and 3Q25 revenue KRW 25.6bn with a KRW 11.4bn operating loss, before 4Q25 revenue of KRW 23.9bn came with an operating loss widening to KRW 29.5bn and an owners' net loss of KRW 38.3bn. The inflection came in 2026.
First-quarter 2026 revenue of KRW 59.5bn and operating profit of KRW 7.7bn flipped the operating line into the black, and 2Q26 revenue of KRW 73.2bn with operating profit of KRW 16.2bn pushed the operating margin above 20%.
On the company's filings, second-quarter revenue rose 22.9% and operating profit 111.6% versus the prior quarter, revenue grew 208.9% year on year, and first-half revenue of KRW 132.7bn with operating profit of KRW 24.0bn marked a swing into profit from a year earlier.
However, the owners' net loss widened again to KRW 60.0bn in 2Q26, pointing the bottom line in the opposite direction from the operating result.
Since 4Q25 also showed a net loss larger than the operating loss, the recurrence of non-operating items is the crux, and in general, when convertible instruments are recognized as liabilities, a rising share price increases the value of the conversion right and produces a book valuation loss, so the actual driver must be checked in the quarterly report footnotes.
On the balance sheet, equity fell from KRW 186.3bn in 2023 and KRW 97.9bn in 2024 to KRW 19.8bn in 2025 while liabilities rose to KRW 102.6bn, lifting the debt-to-equity ratio to 518.5%, and operating cash outflow narrowed markedly from KRW 108.8bn in 2024 to KRW 3.7bn in 2025.
Summing the latest four quarters (3Q25 through 2Q26), revenue expanded to roughly KRW 182.2bn, but both operating income and owners' net income remained negative.
Demand for eSSD controllers is tied directly to the AI data center investment cycle.
The market view is that as AI advances and high-performance NAND-based SSD adoption inside data centers accelerates, demand for FADU's SSD controllers has expanded, and the Gen6 controller is designed to reduce the storage bottlenecks that arise in AI inference environments.
In cycle terms, the industry has moved past the weak NAND and SSD demand phase of 2023-2024 into a period of renewed data center build-out, and the lift to module revenue from higher NAND prices is being observed across the industry, from Taiwan's Phison to domestic legacy memory players.
Still, rising NAND prices cut both ways, boosting finished-product revenue while adding cost pressure and inventory valuation volatility.
On positioning, the fact that only a few companies such as Samsung Electronics, Micron, Marvell and Phison can mass-produce Gen5 data center controllers underlines FADU's technical standing, yet those rivals are far larger in scale and capital.
On the customer side, FADU has long been criticized for earnings volatility stemming from heavy revenue dependence on specific global big tech accounts, which also defines its industry position.
Because the end customers are hyperscalers, a single client's specification change or order timing shift still flows straight into quarterly results. Net, front-end demand conditions look supportive, but FADU's results are more sensitive to individual customer and project factors than to industry averages.
The company's stated direction is converting orders into revenue. FADU has booked more than KRW 340bn of disclosed new orders in 2026 and says larger growth is expected in the second half on a wider global customer base, and it stated that revenue growth should steepen as the year progresses.
Order announcements have continued: on August 12 it disclosed an enterprise SSD controller supply contract worth KRW 39,583mn (42.83% of 2025 consolidated revenue) with an overseas NAND flash memory maker, running from August 11, 2026 to February 1, 2027.
On the product roadmap, it unveiled next-generation Gen6 SSD controller technology during Computex in June 2026, and the company said the Gen6 architecture more than doubles both compute speed and power efficiency versus Gen5 and fully integrates its in-house FDP technology.
As for timing, the company said it has the framework to supply Gen6 to customers in step with market adoption, while Shinhan Securities said it expects development with additional customers to begin around the third quarter of 2027, when Gen6 eSSDs move into full swing.
Asian expansion is supported by the fact that the company said it won a combined KRW 60.4bn of enterprise SSD supply contracts in Taiwan alone this year.
On estimates, Shinhan Securities analyst Heo Sung-kyu, in a July 16, 2026 report, projected 2026 revenue of KRW 385.6bn and operating profit of KRW 85.9bn (a 22.3% operating margin) and said second-quarter results would resemble the first quarter with the earnings increase concentrated in the second half.
On the other side, the short duration of contracts and the volatility of the bottom line still need verification, since disclosed orders do not automatically lock in stable profit.
Because owners' net income over the latest four quarters is negative, no earnings-based multiple can be computed, leaving little basis for comparing the share price on profit metrics.
That pushes the net-asset multiple to the center of the discussion, and with equity sharply reduced at end-2025, the price-to-book ratio sits well above the average for domestic semiconductor fabless peers, in a range that implies a very large premium to net assets.
There is no dividend, so a yield comparison is not possible.
The market's reference point rests less on confirmed profits than on the pace of profit recovery from 2026, and Shinhan Securities analyst Heo Sung-kyu stated in a July 16, 2026 report that he was maintaining a target price of KRW 130,000 (a figure presented by that brokerage, not our view).
What ultimately needs checking is twofold: whether the operating margin holds or improves from first-half levels, and whether the divergence between operating profit and the bottom line proves to be one-off. How those two questions resolve can change how the premium to net assets is interpreted.
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
The company said disclosed new orders in 2026 have surpassed KRW 340bn. That is several times the KRW 92.4bn of 2025 revenue in the confirmed financials. By May, one tally already put three contracts at roughly KRW 111.7bn combined, above full-year 2025 revenue. With contract terms of roughly six months, orders tend to flow into quarterly revenue relatively quickly.
The confirmed operating margin improved for two straight quarters, to roughly 13% in 1Q26 and about 22% in 2Q26. Recognizing the margin ceiling of finished products, the company is shifting toward custom controller design and production.
Some market commentary noted it is strengthening a growth structure centered on higher-margin controllers rather than running finished products and controllers in parallel. Given a fabless cost base weighted toward fixed R&D spending, higher revenue leaves room for improvement in utilization terms.
At Computex 2026, the physical Gen6 SSD controller was shown publicly for the first time in the industry. The company laid out a strategy of accelerating in Taiwan and broader Asia after North American hyperscalers, and said it won KRW 60.4bn of contracts in Taiwan alone this year. A broader regional and customer base can reduce the quarterly swing caused by a single client's order pattern.
On confirmed figures, 2Q26 operating profit was KRW 16.2bn while the owners' net loss was KRW 60.0bn. In 4Q25 as well, the owners' net loss of KRW 38.3bn exceeded the KRW 29.5bn operating loss.
It is generally understood that when convertible instruments are recognized as liabilities, a rising share price can create a book valuation loss as the conversion right gains value, but FADU's specific driver and its recurrence must be checked in the quarterly and semi-annual report footnotes.
Equity fell from KRW 186.3bn in 2023 to KRW 97.9bn in 2024 and KRW 19.8bn in 2025, while liabilities rose to KRW 102.6bn in 2025, taking the debt-to-equity ratio to 518.5%. Compared with the 30-40% range through 2024, the character of the balance sheet has changed materially.
Operating cash flow stayed negative at KRW -42.2bn in 2023, KRW -108.8bn in 2024 and KRW -3.7bn in 2025. How quickly profit recovery rebuilds equity is the central variable in any discussion of financial stability.
The August contract carries no deposit or advance payment and settles within 30 days of delivery, and if the buyer cancels, compensation is the lesser of 0.5% of the cancelled amount and direct costs the supplier cannot reduce or avoid.
The counterparty's name and recent revenue were withheld at its request to protect trade secrets. Criticism of earnings volatility from heavy reliance on specific global big tech customers has also persisted. It bears noting that the headline order size does not guarantee booked revenue.
On December 18, 2025, prosecutors indicted FADU as a corporation along with executives for alleged violations of the Capital Markets Act, concluding that it had exaggerated customer revenue estimates and clouded investor judgment.
Even after trading resumed, the legal risk triggered by the earnings-outlook controversy remains ongoing, and the first hearing before the criminal division of the Seoul Southern District Court was reported to be scheduled for February 26, 2026.
A separate class action tied to the IPO is also proceeding, leaving uncertainty over litigation costs and potential damages.
Results are directly linked to AI data center investment and NAND market conditions. One assessment notes that the lift to module revenue from rising NAND prices is visible across the industry, but if prices reverse, both finished-product revenue and inventory valuation could come under pressure.
History shows sharp contraction during demand gaps, with revenue of KRW 22.5bn in 2023 and KRW 43.5bn in 2024. Customer timing on the generational shift from Gen5 to Gen6 can also move the recognition of quarterly revenue.
With equity thin and the debt-to-equity ratio at 518.5%, any need for additional funding could turn the terms and structure into a discussion of shareholder dilution.
Where convertible instruments are recognized as liabilities, a rising share price enlarges book valuation losses and can trigger disclosure requirements, adding to earnings volatility.
The size of outstanding convertible instruments and the schedule of early redemption rights should be checked directly in periodic filings and material-event reports. Accounting valuation losses differ from cash outflows, but they still affect equity and reported metrics.
Third-quarter 2026 results. Since Shinhan Securities projected the earnings increase would concentrate in the second half, the checkpoints are whether revenue exceeds the KRW 73.2bn of 2Q26 and whether the operating margin holds in the 20% range.
Release of third-quarter report footnotes. These should reveal the composition and recurrence risk of the non-operating items behind the KRW 60.0bn owners' net loss in 2Q26, and how the equity and liability structure has changed versus the first half.
The flow of additional order disclosures and delivery on existing contracts. The KRW 39.6bn contract disclosed on August 12 runs to February 1, 2027, so the quarter in which that volume is recognized as revenue, plus any follow-on deals in Taiwan and Asia, are worth watching.
Customer adoption and mass-production timing for the Gen6 controller. Shinhan Securities said it expects development with additional customers to start around the third quarter of 2027 as Gen6 eSSDs ramp, so progress on samples and qualification beforehand serves as a leading indicator.
Confirmed full-year 2026 results and the annual business report. Whether the operating line closes the year in the black, and whether equity recovers from the KRW 19.8bn level of end-2025, will set the baseline for assessing financial stability.
In the first half of 2026, FADU changed direction out of a long stretch of losses, with confirmed revenue and operating profit improving together.
Revenue of KRW 59.5bn with operating profit of KRW 7.7bn in the first quarter and KRW 73.2bn with KRW 16.2bn in the second marked two consecutive profitable quarters, a clear shift from 2025's KRW 92.4bn of revenue and KRW 65.5bn operating loss.
At the same time, the KRW 60.0bn owners' net loss in the second quarter and the 518.5% debt-to-equity ratio at end-2025 leave open questions on both the bottom line and the balance sheet.
On the business side, disclosed new orders exceeding KRW 340bn in 2026 and the Gen6 controller reveal at Computex 2026 form the growth case, while earnings volatility from dependence on specific big tech customers and ongoing legal risk stand on the other side.
In February 2026, the Korea Exchange excluded the company from a substantive listing review and lifted the trading suspension, clearing the procedural uncertainty over its continued listing.
Ultimately, the assessment hinges on whether orders convert into durable profit and whether the divergence between operating profit and the bottom line closes. This report is for information purposes and contains no investment opinion or buy or sell recommendation.
Report written 2026-09-05 · Data as of 2026-09-04
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