---
schema_version: "secwatch.filing_event.v1"
accession: "0001683168-24-001123"
form_type: "8-K"
ticker: "AAOI"
cik: "0001158114"
company_name: "APPLIED OPTOELECTRONICS, INC."
filed_at: "2024-02-22T23:59:59+00:00"
generated_at: "2026-06-05T18:23:53.770041+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# AAOI Q4 revenue $60.5M (-2% YoY); non-GAAP net income $1.6M first quarterly profit in years

## Summary
- Q4 GAAP revenue $60.5M (-2% YoY; -3% QoQ); GAAP gross margin improved to 35.7% from 10.1% YoY.
- GAAP net loss $13.9M ($0.38/sh) narrowed from $20.3M loss ($0.71) in Q4 2022.
- Non-GAAP net income $1.6M ($0.04 diluted EPS), first non-GAAP quarterly profit in years, vs non-GAAP loss $5.4M in Q4 2022.
- Full year 2023 revenue $217.6M (-2% YoY); GAAP net loss $56.0M ($1.75/sh) improved from $66.4M loss ($2.38) in 2022.
- CEO guides Q1 revenue decline due to Lunar New Year and price cuts; expects substantial improvement in Q2.

## SEC filing metadata
- accession: 0001683168-24-001123
- form_type: 8-K
- ticker: AAOI
- cik: 0001158114
- company_name: APPLIED OPTOELECTRONICS, INC.
- filed_at: 2024-02-22T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1158114/000168316824001123/0001683168-24-001123-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1158114/000168316824001123/appliedopto_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001683168-24-001123
- JSON: https://secwatch.observer/filing/0001683168-24-001123.json
- Plain text: https://secwatch.observer/filing/0001683168-24-001123.txt

## Key facts
- Earnings Releases
  APPLIED OPTOELECTRONICS, INC. reported fourth quarter ended December 31, 2023 results: revenue $60.5 million.
  - Period: fourth quarter ended December 31, 2023
  - Revenue: $60.5 million
  - Result: reported results
  source text: ombined with some price reductions, with substantial improvement expected in Q2.” Fourth Quarter 2023 Financial Summary · GAAP revenue was $60.5 million, compared $61.6 million in the fourth quarter of 2022 and $62.5 million in the third quarter of 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1158114/000168316824001123/0001683168-24-001123-index.htm
- Earnings Releases
  APPLIED OPTOELECTRONICS, INC. reported full year ended December 31, 2023 results: revenue $217.6 million.
  - Period: full year ended December 31, 2023
  - Revenue: $217.6 million
  - Result: reported results
  source text: Full Year 2023 Financial Summary · GAAP revenue was $217.6 million, compared with $222.8 million in 2022. · GAAP gross margin was 27.1%, compared with 15.1% in 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1158114/000168316824001123/0001683168-24-001123-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.