AAOI
Applied Optoelectronics, Inc.
AAOI's outlook is improving, though it still trails on the overall score.
FATN
FatPipe, Inc. Common Stock
FATN has the edge over AAOI overall, supported by stronger valuation and stronger fundamentals.
AAOI Fundamentals
| Metric | Status |
|---|---|
| Strong | |
| Under pressure | |
| Weak | |
| Unavailable |
AAOI's revenue is currently strong, but its profitability and cash flow are under pressure. There isn't enough data to rate its balance sheet.
FATN Fundamentals
| Metric | Status |
|---|---|
| Healthy | |
| Strong | |
| Unavailable | |
| Healthy |
FATN's revenue, profitability and balance sheet are currently healthy. There isn't enough data to rate its cash flow.
AAOI PE Valuation
AAOI has no meaningful PE right now: it lost money over the past year. If it returns to profit as analysts expect, today's price would be 18x next year's earnings.
FATN PE Valuation
| Level | PE | Price | Vs current |
|---|---|---|---|
| Current | 9.7x | $4.67 | — |
| Cheap | 14x | $6.89 | +47% |
| Fair | 25x | $12.09 | +159% |
| Expensive | 45x | $21.56 | +362% |
Historical ranges are pointers, not guarantees.
FATN's PE is in its cheap range at 9.7x.
AAOI Forward outlook
| Metric | Outlook |
|---|---|
| -- | |
| Returning to profit | |
| Strong growth | |
| Strongly improving | |
| Limited | |
| Low |
Analysts expect AAOI to return to profit, with revenue growing. However, they disagree widely on these estimates.
FATN Forward outlook
There aren't enough analyst estimates for FATN to show an outlook.
AAOI Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Forward | $2.98 | — |
| Q3 2026 | -$0.42 | +$3.02 |
| Q2 2026 | -$0.77 | +$2.81 |
| Q1 2026 | -$0.65 | +$3.43 |
| Q4 2025 | -$0.64 | +$3.86 |
| Q3 2025 | -$3.44 | -$1.41 |
| Q2 2025 | -$3.58 | -$1.70 |
| Q1 2025 | -$4.08 | -$2.29 |
| Q4 2024 | -$4.50 | -$2.75 |
AAOI is still losing money, but far less than before: $0.42 per share over the past year, against $4.50 at its worst in late 2024.
FATN Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Q3 2026 | $0.48 | +700% |
| Q2 2026 | $0.39 | +255% |
| Q1 2026 | $0.35 | +218% |
| Q4 2025 | $0.08 | -71% |
| Q3 2025 | $0.06 | -81% |
FATN has the edge over AAOI on earnings quality, reporting a profit while its opponent remains loss making.
AAOI Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q3 2026 | $269.9M | +127% |
| Q2 2026 | $191.9M | +86% |
| Q1 2026 | $151.1M | +51% |
| Q4 2025 | $134.3M | +34% |
| Q3 2025 | $118.6M | +82% |
| Q2 2025 | $103M | +138% |
| Q1 2025 | $99.9M | +146% |
| Q4 2024 | $100.3M | +66% |
AAOI has the edge over FATN on sales, with more consistent year-over-year improvement.
| Quarter | Margin | YoY |
|---|---|---|
| Q3 2026 | -0.5% | +15 points |
| Q2 2026 | -13% | +2.6 points |
| Q1 2026 | -8.6% | +0.3 points |
| Q4 2025 | -8.6% | -2.1 points |
| Q3 2025 | -15% | +10 points |
| Q2 2025 | -16% | +45 points |
| Q1 2025 | -8.9% | +44 points |
| Q4 2024 | -6.5% | +1 points |
AAOI's operating margin was −0.5% last quarter, up 15 points from the same quarter a year ago, near the top of its range since 2019.
FATN Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q3 2026 | $4.8M | +22% |
| Q2 2026 | $5M | +28% |
| Q1 2026 | $13.6M | +330% |
| Q4 2025 | $4.1M | +30% |
| Q3 2025 | $4M | +5.6% |
| Q2 2025 | $3.9M | +4.9% |
| Q1 2025 | $3.1M | -41% |
| Q4 2024 | $3.1M | -21% |
FATN's revenue has grown year over year for six quarters in a row: $5M last quarter, up 22% from the same quarter a year ago.
| Quarter | Margin | YoY |
|---|---|---|
| Q3 2026 | 17% | +18 points |
| Q2 2026 | 18% | -7.6 points |
| Q1 2026 | 16% | +10 points |
| Q4 2025 | 9.8% | +4 points |
| Q3 2025 | 0% | -23 points |
| Q2 2025 | 25% | +2.6 points |
| Q1 2025 | 5.9% | -39 points |
| Q4 2024 | 5.9% | -20 points |
FATN has the edge over AAOI on profitability, with a higher operating margin.
AAOI Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q3 2026 | -$369.9M | -$291.2M |
| Q2 2026 | -$265.3M | -$174.4M |
| Q1 2026 | -$143.6M | -$64.3M |
| Q4 2025 | -$104.6M | -$51.6M |
| Q3 2025 | -$78.7M | -$58M |
| Q2 2025 | -$91M | -$86M |
| Q1 2025 | -$79.3M | -$45.1M |
| Q4 2024 | -$53M | -$48.4M |
AAOI has the stronger cash trend. Its trailing FCF is down 676% versus its history, compared with FATN at down 1,053%.
FATN Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q2 2026 | -$679K | -$128K |
| Q4 2025 | $240.9K | +$363.6K |
| Q3 2025 | $399.8K | +696% |
| Q2 2025 | -$551.1K | -$293.6K |
| Q1 2025 | -$197K | -110% |
| Q4 2024 | -$122.7K | +$1.6M |
FATN has burned cash in most quarters: −$589,364 over the past year, against −$526,884 the year before.
AAOI Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | +7.7% | +6.3M shares |
| 1 year | +39% | +24.5M shares |
| 3 years | +168% | +55.1M shares |
| 5 years | +224% | +60.7M shares |
| Available history | +340% | +67.9M shares |
AAOI has 88M diluted shares, up 39% from a year ago.
FATN Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | +0.3% | +35.4K shares |
| 1 year | +1.7% | +235K shares |
FATN has the edge over AAOI on shareholder dilution, with a more favorable share count trend.
| Quarter | Spent |
|---|---|
| Q1 2025 | — |
| Q4 2024 | — |
| Q3 2024 | — |
| Q2 2024 | — |
| Q1 2024 | — |
| Q4 2023 | — |
AAOI Net Leverage
AAOI's operating earnings (EBITDA) were negative over the past year, so its debt can't be measured against them.
FATN Net Leverage
| Quarter | Net Leverage | Status |
|---|---|---|
| Q3 2026 | 0.3x | Very low |
| Q2 2026 | 0.1x | Very low |
| Q1 2026 | -0.2x | Net Cash |
| Q4 2025 | -0.7x | Net Cash |
| Q3 2025 | -0.7x | Net Cash |
| Q2 2025 | -0.3x | Net Cash |
| Q1 2025 | 1.3x | Healthy |
| Q4 2024 | 0.5x | Very low |
FATN's net debt is less than a year of its operating earnings (EBITDA), after holding more cash than debt a year ago.
AAOI Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 35.1 | Neutral |
| Stochastic | 4.8 | Oversold |
AAOI's weekly RSI is 35 (neutral) and its Stochastic is 5 (oversold).
FATN Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 48.4 | Neutral |
| Stochastic | 18.5 | Oversold |
FATN's weekly RSI is 48 (neutral) and its Stochastic is 19 (oversold).
AAOI PE vs Technology Sector
AAOI has no meaningful PE right now: it lost money over the past year.
FATN PE vs Technology Sector
| Metric | FATN | Sector median | Relative |
|---|---|---|---|
| PE | 9.7x | 28x | 65% below |
| PE % | 2 | 24 | 22 pts below |
FATN is trading at 9.7x earnings, a 65% discount to the Technology sector's median of 28x.
AAOI Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $80.2 | 34% below |
| 20 week MA | $100.6 | 47% below |
| 50 week MA | $100.3 | 47% below |
| 100 week MA | $62.3 | 15% below |
| 200 week MA | $36.9 | 43% above |
FATN has stronger trend alignment. AAOI is above 1 of 5 weekly averages versus FATN above 1 of 3.
FATN Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $5.07 | 7.9% below |
| 20 week MA | $5.47 | 15% below |
| 50 week MA | $3.98 | 17% above |
FATN has pulled back, but its long-term trend is still up: it's below its 8- and 20-week averages, but 17% above its 50-week average.
AAOI Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2020 | $11.5 | $8.77 | -24% |
| 2021 | $8.77 | $5.64 | -36% |
| 2022 | $5.64 | $1.95 | -65% |
| 2023 | $1.95 | $19.3 | +891% |
| 2024 | $19.3 | $37.7 | +95% |
| 2025 | $37.7 | $37.2 | -1.5% |
| 2026 YTD | $37.2 | $52.9 | +42% |
AAOI's yearly returns have swung widely, from +891% in 2023 to −65% in 2022. It's up 42% so far in 2026.
FATN Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2025 | $6.36 | $2.51 | -61% |
| 2026 YTD | $2.51 | $4.67 | +86% |
FATN has the edge over AAOI on returns for 2026, with the stronger performance.