---
schema_version: "secwatch.filing_event.v1"
accession: "0001683168-24-001140"
form_type: "8-K/A"
ticker: "AAOI"
cik: "0001158114"
company_name: "APPLIED OPTOELECTRONICS, INC."
filed_at: "2024-02-23T23:59:59+00:00"
generated_at: "2026-06-05T16:44:41.982840+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Applied Opto corrects Q1 2024 non-GAAP net loss outlook to $10.9M-$12.6M; reports Q4 non-GAAP net income $1.6M

## Summary
- Corrected Q1 2024 non-GAAP net loss range from $18.9M-$20.8M to $10.9M-$12.6M due to clerical error.
- Q4 2023 revenue $60.5M; GAAP gross margin 35.7% (up from 10.1% YoY); non-GAAP net income $1.6M ($0.04 diluted EPS).
- Full year 2023 revenue $217.6M (down 2% YoY); GAAP net loss $56.0M ($1.75 per share); non-GAAP net loss $13.3M ($0.42 per share).
- Management guided Q1 2024 revenue decline due to Lunar New Year and price reductions; expects substantial improvement in Q2.

## SEC filing metadata
- accession: 0001683168-24-001140
- form_type: 8-K/A
- ticker: AAOI
- cik: 0001158114
- company_name: APPLIED OPTOELECTRONICS, INC.
- filed_at: 2024-02-23T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- 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/1158114/000168316824001140/0001683168-24-001140-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1158114/000168316824001140/appliedopto_8ka1.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001683168-24-001140
- JSON: https://secwatch.observer/filing/0001683168-24-001140.json
- Plain text: https://secwatch.observer/filing/0001683168-24-001140.txt

## Key facts
- Earnings Releases
  APPLIED OPTOELECTRONICS, INC. reported the fourth quarter and full year ended December 31, 2023 results: revenue $60.5 million, net income GAAP net loss was $13.9 million, or $0.38 per basic share, EPS $0.38 per basic share.
  - Period: the fourth quarter and full year ended December 31, 2023
  - Revenue: $60.5 million
  - Net income: GAAP net loss was $13.9 million, or $0.38 per basic share
  - EPS: $0.38 per basic share
  - Result: reported results
  source text: in Q1 due to the Lunar New Year combined 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. · GAAP gross margin was 35.7%, compared with 10.1% in the fourth quarter
  evidence_url: https://www.sec.gov/Archives/edgar/data/1158114/000168316824001140/0001683168-24-001140-index.htm

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