Applied Optoelectronics, Inc.
AAOI Technology Communication Equipment
Applied Optoelectronics, Inc.’s revenue for fiscal 2025 (year ended December 2025) was $455.7 million, up 82.8% from fiscal 2024. In the quarter to June 2026, revenue grew 86.4%, EPS fell 75.0%, free cash flow fell 191.6% and total debt rose 69.0%, each against the same quarter a year earlier.
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Applied Optoelectronics, Inc. (AAOI) Piotroski F-score
Applied Optoelectronics, Inc.'s Piotroski F-score for fiscal 2025 is 4 out of 9: 4 of nine tests of profitability, leverage and efficiency passed, up from 1 in fiscal 2024.
Piotroski F-score, annual
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Annual newest first
| Period | Piotroski F-score | Change (points) |
|---|---|---|
| FY2025 | 4 | 3.00 |
| FY2024 | 1 | (5.00) |
| FY2023 | 6 | 4.00 |
| FY2022 | 2 | (1.00) |
| FY2021 | 3 | 0.00 |
| FY2020 | 3 | 2.00 |
| FY2019 | 1 | (1.00) |
| FY2018 | 2 | (5.00) |
| FY2017 | 7 | (1.00) |
| FY2016 | 8 | — |
How fiscal 2025’s score is made up
| Test | This year | Year before | Result | Points |
|---|---|---|---|---|
| Positive return on assets | (4.46%) | (39.89%) | Fail | 0 |
| Positive operating cash flow | (174.43m) | (69.53m) | Fail | 0 |
| Rising return on assets | (4.46%) | (39.89%) | Pass | 1 |
| Cash flow above net income | (136.20m) | 117.21m | Fail | 0 |
| Falling long-term leverage | 0.15 | 0.30 | Pass | 1 |
| Rising current ratio | 2.63 | 1.77 | Pass | 1 |
| No new shares issued | 60,184,000 | 41,539,000 | Fail | 0 |
| Rising gross margin | 30.04% | 24.78% | Pass | 1 |
| Rising asset turnover | 0.53 | 0.53 | Fail | 0 |
| Piotroski F-score | Mixed | 4 | ||
How the Piotroski F-score works
One point for each of nine tests, this fiscal year against the one before: positive return on assets, positive operating cash flow, rising return on assets, cash flow above net income, falling long-term leverage, a rising current ratio, no new shares issued, a rising gross margin and rising asset turnover. The ratios are the ones on this site, so each can be checked.
Joseph Piotroski (2000) called 8–9 high and 0–1 low; reading it in three bands is the common convention:
| 7–9 | Strong — most fundamentals improved |
|---|---|
| 4–6 | Mixed |
| 0–3 | Weak — most fundamentals deteriorated |
Where this differs from the paper: return on assets is on average rather than beginning-of-year assets, and weighted basic shares stand in for shares issued. The score is shown only when all nine tests can be worked out, which takes three fiscal years; banks and insurers, which report no current assets or gross profit, have none.
Piotroski F-score against peers
| Company | Piotroski F-score |
|---|---|
| BDC Belden Inc compare | 8 |
| EXTR Extreme Networks, Inc. compare | 7 |
| VIAV Viavi Solutions Inc. compare | 6 |
| VSAT Viasat Inc. compare | 6 |
| ONDS Ondas Holdings Inc. compare | 6 |
| ZBRA Zebra Technologies Corporation compare | 5 |
| DGII Digi International Inc. compare | 5 |
| AAOI Applied Optoelectronics, Inc. | 4 |
| ASTS AST SpaceMobile, Inc. compare | — |
What Piotroski F-score is
The Piotroski F-Score tells an investor how many signs of improving profitability, funding and efficiency a company shows against a year earlier.
One point for each of nine tests against a year earlier: positive return on assets, positive operating cash flow, rising return on assets, cash flow above net income, falling long-term leverage, rising current ratio, no new shares issued, rising gross margin, and rising asset turnover