DEEP RESEARCH · OE Solutions

OE Solutions: Q4 2025 Results and Optical Transceiver Turnaround

A report on LD-chip internalization, accounting noise, and the 2026-2028 telecom equipment cycle

Written: 2026-03-15 · Bottom-up industry analysis · Naver Blog original

You are responsible for your own investment decisions. This material is research, not a buy or sell recommendation.

0. Bottom line first

The key is not only optical-transceiver demand recovery, but the cost and supply-chain benefits from internalizing LD chips. The source argues that the 2025 preliminary net loss should be separated from non-cash derivative valuation losses.

OE Solutions vertical integrationFrom optical devices to modules

LD ChipCore optical component, over 40% of raw-material purchases in the source

Optical DeviceIn-house design and production Fab

Transceiver10G/25G Tunable, 100G/400G DCO, Smart SFP

Major VendorsSamsung, Ericsson, Nokia and other global SI supply chains

In a demand surge, cost ratio and delivery reliability become the moat.

1. Business and moat

Official fact: OE Solutions was founded in August 2003 and listed on KOSDAQ in February 2014. It makes optical transceivers and optical devices for wireless fronthaul, FTTH/PON, CATV/MSO, data centers, and enterprise networks.

Official fact: The source says LD chips and related optical devices account for more than 40% of raw-material purchases.

OE Solutions optical transceiver and value-chain source image

2. Demand and accounting noise

Official fact: The source cites AT&T's $250 billion, roughly KRW 330 trillion, infrastructure plan, 5G SA and AI-RAN, and Huawei/ZTE exclusion as the macro setup.

Official fact: Preliminary 2025 revenue jumped 79.2% and operating loss improved 47.7%. Reported net loss may be distorted by derivative valuation losses linked to KRW 25.0 billion of convertible bonds. Capital increased by KRW 9.83 billion.

Interpretation: The right analysis separates revenue growth, operating-loss narrowing, and non-cash derivative losses. Q1 2026 gross margin, operating profit, and free cash flow are decisive.

OE Solutions earnings and valuation source image

3. Valuation and catalysts

Item	Source figure/content
2019 peak	PER 24.1x, PBR 3.61x; Q3 2018 PER 104x
March 11, 2026	Share price KRW 35,850; market cap about KRW 431.9 billion
2026 forecast	Revenue KRW 120.9 billion; operating profit KRW 7.7 billion
CAPEX	KRW 25.0 billion CB proceeds used for LD-chip Fab expansion

4. My investment note

Trigger 1

Q1 2026 profit turn

Watch GPM and FCF from LD-chip internalization.

Trigger 2

North America orders

Watch 10G/25G Tunable and 100G+ DCO transceiver awards.

Trigger 3

Overhang resolution

Watch CB conversion, derivative liabilities, and equity structure.

Sources

Naver original