Revenue YoY YoY +180.9%

LandMark Optoelectronics Corp. 聯亞

3081 · Optical & Connectivity · Optical (Epi Wafers) · TPEX · par NT$ 10

LandMark Optoelectronics — specialty III-V epi-wafer maker (InP and GaAs LD/PD epi) supplying data-center optical-transceiver lasers (CW DFB, EML) and silicon-photonics light sources.

Optical & Connectivity · 9 peers, this one outlined

below −10%above +50%

83TECHI health

Revenue (TERMI)94Profitability75Quality47Sentiment93

0–100, mostly how each is changing against the company’s own history, not its level

Sep 2026 flash, provisional: TECHI 81 (−2.3) · TERMI 89 (−5.2)

Monthly revenue

Aug 2026 · latest reported month

Latest revenue

NT$ 520.5M

MoM

+3.8%

YoY

+180.9%

T12M revenue

NT$ 3.98B

trailing 12-month

YoY % · last 12 months

Stock price

Daily close in NT$, with volume · adjusted for stock dividends and splits

Revenue trend

Monthly revenue with the trailing 12-month sum

Sep nowcastSep revenue nowcast

NT$ 498.3Mmiddle estimate

50% bandlikely range

NT$ 372.4MNT$ 610.4M

Year-over-year %

Each month against the same month a year earlier

Last 12 months

Revenue, changes and trailing sums by month

Aug 2026NT$ 520.5M

MoM: +3.8%
YoY: +180.9%
T3M: NT$ 1.44B
T12M: NT$ 3.98B
YTD: NT$ 3.15B
YTD vs prior: +129.0%

Jul 2026NT$ 501.2M

MoM: +19.2%
YoY: +176.5%
T3M: NT$ 1.33B
T12M: NT$ 3.64B
YTD: NT$ 2.63B
YTD vs prior: +121.0%

Jun 2026NT$ 420.5M

MoM: +3.7%
YoY: +128.1%
T3M: NT$ 1.22B
T12M: NT$ 3.32B
YTD: NT$ 2.13B
YTD vs prior: +111.0%

May 2026NT$ 405.3M

MoM: +2.5%
YoY: +118.8%
T3M: NT$ 1.14B
T12M: NT$ 3.08B
YTD: NT$ 1.71B
YTD vs prior: +107.1%

Apr 2026NT$ 395.3M

MoM: +15.2%
YoY: +115.4%
T3M: NT$ 1.03B
T12M: NT$ 2.86B
YTD: NT$ 1.30B
YTD vs prior: +103.7%

Mar 2026NT$ 343.3M

MoM: +18.3%
YoY: +89.3%
T3M: NT$ 904.4M
T12M: NT$ 2.65B
YTD: NT$ 904.4M
YTD vs prior: +99.0%

Show 6 older months

Feb 2026NT$ 290.3M

MoM: +7.2%
YoY: +91.4%
T3M: NT$ 791.7M
T12M: NT$ 2.49B
YTD: NT$ 561.1M
YTD vs prior: +105.4%

Jan 2026NT$ 270.8M

MoM: +17.4%
YoY: +122.8%
T3M: NT$ 711.7M
T12M: NT$ 2.35B
YTD: NT$ 270.8M
YTD vs prior: +122.8%

Dec 2025NT$ 230.7M

MoM: +9.7%
YoY: +158.9%
T3M: NT$ 642.4M
T12M: NT$ 2.20B
YTD: NT$ 2.20B
YTD vs prior: +82.3%

Nov 2025NT$ 210.3M

MoM: +4.4%
YoY: +147.0%
T3M: NT$ 598.0M
T12M: NT$ 2.06B
YTD: NT$ 1.97B
YTD vs prior: +76.2%

Oct 2025NT$ 201.5M

MoM: +8.2%
YoY: +75.8%
T3M: NT$ 573.0M
T12M: NT$ 1.94B
YTD: NT$ 1.76B
YTD vs prior: +70.4%

Sep 2025NT$ 186.3M

MoM: +0.5%
YoY: +68.6%
T3M: NT$ 552.8M
T12M: NT$ 1.85B
YTD: NT$ 1.56B
YTD vs prior: +69.7%

Period	Revenue	MoM	YoY	T3M	T12M	YTD	YTD vs prior
Aug 2026	NT$ 520.5M	+3.8%	+180.9%	NT$ 1.44B	NT$ 3.98B	NT$ 3.15B	+129.0%
Jul 2026	NT$ 501.2M	+19.2%	+176.5%	NT$ 1.33B	NT$ 3.64B	NT$ 2.63B	+121.0%
Jun 2026	NT$ 420.5M	+3.7%	+128.1%	NT$ 1.22B	NT$ 3.32B	NT$ 2.13B	+111.0%
May 2026	NT$ 405.3M	+2.5%	+118.8%	NT$ 1.14B	NT$ 3.08B	NT$ 1.71B	+107.1%
Apr 2026	NT$ 395.3M	+15.2%	+115.4%	NT$ 1.03B	NT$ 2.86B	NT$ 1.30B	+103.7%
Mar 2026	NT$ 343.3M	+18.3%	+89.3%	NT$ 904.4M	NT$ 2.65B	NT$ 904.4M	+99.0%
Feb 2026	NT$ 290.3M	+7.2%	+91.4%	NT$ 791.7M	NT$ 2.49B	NT$ 561.1M	+105.4%
Jan 2026	NT$ 270.8M	+17.4%	+122.8%	NT$ 711.7M	NT$ 2.35B	NT$ 270.8M	+122.8%
Dec 2025	NT$ 230.7M	+9.7%	+158.9%	NT$ 642.4M	NT$ 2.20B	NT$ 2.20B	+82.3%
Nov 2025	NT$ 210.3M	+4.4%	+147.0%	NT$ 598.0M	NT$ 2.06B	NT$ 1.97B	+76.2%
Oct 2025	NT$ 201.5M	+8.2%	+75.8%	NT$ 573.0M	NT$ 1.94B	NT$ 1.76B	+70.4%
Sep 2025	NT$ 186.3M	+0.5%	+68.6%	NT$ 552.8M	NT$ 1.85B	NT$ 1.56B	+69.7%

Period

Revenue

MoM

YoY

T3M

T12M

YTD

YTD vs prior

Aug 2026

NT$ 520.5M

+3.8%

+180.9%

NT$ 1.44B

NT$ 3.98B

NT$ 3.15B

+129.0%

Jul 2026

NT$ 501.2M

+19.2%

+176.5%

NT$ 1.33B

NT$ 3.64B

NT$ 2.63B

+121.0%

Jun 2026

NT$ 420.5M

+3.7%

+128.1%

NT$ 1.22B

NT$ 3.32B

NT$ 2.13B

+111.0%

May 2026

NT$ 405.3M

+2.5%

+118.8%

NT$ 1.14B

NT$ 3.08B

NT$ 1.71B

+107.1%

Apr 2026

NT$ 395.3M

+15.2%

+115.4%

NT$ 1.03B

NT$ 2.86B

NT$ 1.30B

+103.7%

Mar 2026

NT$ 343.3M

+18.3%

+89.3%

NT$ 904.4M

NT$ 2.65B

NT$ 904.4M

+99.0%

Feb 2026

NT$ 290.3M

+7.2%

+91.4%

NT$ 791.7M

NT$ 2.49B

NT$ 561.1M

+105.4%

Jan 2026

NT$ 270.8M

+17.4%

+122.8%

NT$ 711.7M

NT$ 2.35B

NT$ 270.8M

+122.8%

Dec 2025

NT$ 230.7M

+9.7%

+158.9%

NT$ 642.4M

NT$ 2.20B

+82.3%

Nov 2025

NT$ 210.3M

+4.4%

+147.0%

NT$ 598.0M

NT$ 2.06B

NT$ 1.97B

+76.2%

Oct 2025

NT$ 201.5M

+8.2%

+75.8%

NT$ 573.0M

NT$ 1.94B

NT$ 1.76B

+70.4%

Sep 2025

NT$ 186.3M

+0.5%

+68.6%

NT$ 552.8M

NT$ 1.85B

NT$ 1.56B

+69.7%