AAOI
Applied Optoelectronics, Inc.
AAOI has the edge over GDYN overall, supported by stronger modeled upside and stronger valuation.
GDYN
Grid Dynamics Holdings, Inc.
GDYN has lower modeled downside risk, despite its lower overall score.
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.
GDYN Fundamentals
| Metric | Status |
|---|---|
| Stable | |
| Stable | |
| Healthy | |
| Healthy |
GDYN's cash flow and balance sheet are currently healthy, and its revenue and profitability are stable.
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.
GDYN PE Valuation
| Level | PE | Price | Vs current |
|---|---|---|---|
| Cheap | 51x | $5.15 | -62% |
| Fair | 108x | $10.78 | -19% |
| Current | 134x | $13.38 | — |
| Expensive | 323x | $32.35 | +142% |
Historical ranges are pointers, not guarantees.
GDYN's PE is in its fair range at 134x.
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.
GDYN Forward outlook
There aren't enough analyst estimates for GDYN 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.
GDYN Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Q3 2026 | $0.10 | -38% |
| Q2 2026 | $0.03 | -85% |
| Q1 2026 | $0.06 | -54% |
| Q4 2025 | $0.11 | +120% |
| Q3 2025 | $0.16 | +300% |
| Q2 2025 | $0.20 | +$0.20 |
| Q1 2025 | $0.13 | +225% |
| Q4 2024 | $0.05 | +$0.07 |
GDYN 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 GDYN on sales, with stronger typical year-over-year growth.
| 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.
GDYN Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q3 2026 | $114.3M | +9.7% |
| Q2 2026 | $108.2M | +7% |
| Q1 2026 | $104.1M | +3.7% |
| Q4 2025 | $106.2M | +5.9% |
| Q3 2025 | $104.2M | +19% |
| Q2 2025 | $101.1M | +22% |
| Q1 2025 | $100.4M | +26% |
| Q4 2024 | $100.3M | +28% |
GDYN's revenue has grown year over year for 10 quarters in a row: $114M last quarter, up 9.7% from the same quarter a year ago.
| Quarter | Margin | YoY |
|---|---|---|
| Q3 2026 | 8% | +8.2 points |
| Q2 2026 | 1.2% | +1.3 points |
| Q1 2026 | -3.5% | -1.5 points |
| Q4 2025 | 0.5% | -0.8 points |
| Q3 2025 | -0.2% | -2.7 points |
| Q2 2025 | -0.1% | -0.2 points |
| Q1 2025 | -2% | +4.9 points |
| Q4 2024 | 1.3% | +2.6 points |
GDYN 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 burned cash in almost every quarter: −$883M over the past year, against −$302M the year before.
GDYN Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q3 2026 | $13.3M | +350% |
| Q2 2026 | $2.5M | -75% |
| Q1 2026 | $4.4M | -26% |
| Q4 2025 | $6.1M | +38% |
| Q3 2025 | $2.9M | -50% |
| Q2 2025 | $10.2M | +27% |
| Q1 2025 | $6M | +13881% |
| Q4 2024 | $4.4M | -16% |
GDYN has the edge over AAOI on cash generation, producing positive trailing cash flow while its opponent burns cash.
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.
GDYN Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | -1.4% | -1.1M shares |
| 1 year | -4.6% | -3.9M shares |
| 3 years | +5.9% | +4.6M shares |
| 5 years | +31% | +19.3M shares |
GDYN has the edge over AAOI on shareholder dilution, with a more favorable share count trend.
| Quarter | Spent |
|---|---|
| Q3 2026 | $6.7M |
| Q2 2026 | $17.3M |
| Q1 2026 | $11.5M |
| Q4 2021 | — |
AAOI Net Leverage
AAOI's operating earnings (EBITDA) were negative over the past year, so its debt can't be measured against them.
GDYN Net Leverage
| Quarter | Net Leverage | Status |
|---|---|---|
| Q3 2026 | -10.6x | Net Cash |
| Q2 2026 | -16.2x | Net Cash |
| Q1 2026 | -19.7x | Net Cash |
| Q4 2025 | -19.2x | Net Cash |
| Q3 2025 | -18.7x | Net Cash |
| Q2 2025 | -17.8x | Net Cash |
| Q1 2025 | -18.7x | Net Cash |
| Q4 2024 | -27.6x | Net Cash |
GDYN has more cash than debt.
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).
GDYN Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 80.6 | Overbought |
| Stochastic | 91.9 | Overbought |
GDYN's weekly RSI is 81 (overbought) and its Stochastic is 92 (overbought).
AAOI PE vs Technology Sector
AAOI has no meaningful PE right now: it lost money over the past year.
GDYN PE vs Technology Sector
| Metric | GDYN | Sector median | Relative |
|---|---|---|---|
| PE | 134x | 28x | 380% above |
| PE % | 56 | 35 | 21 pts above |
GDYN is trading at 134x earnings, a 380% premium 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 |
AAOI has fallen below most of its moving averages, though it's still 43% above its 200-week average.
GDYN Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $10.0 | 34% above |
| 20 week MA | $8.26 | 62% above |
| 50 week MA | $7.60 | 76% above |
| 100 week MA | $10.4 | 28% above |
| 200 week MA | $11.3 | 18% above |
GDYN has the edge over AAOI on trend strength, trading above more of its moving averages.
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.
GDYN Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2020 | $10.9 | $12.4 | +14% |
| 2021 | $12.4 | $39.8 | +220% |
| 2022 | $39.8 | $10.6 | -73% |
| 2023 | $10.6 | $13.3 | +26% |
| 2024 | $13.3 | $22.7 | +70% |
| 2025 | $22.7 | $9.28 | -59% |
| 2026 YTD | $9.28 | $13.4 | +44% |
GDYN has the edge over AAOI on returns for 2026, with the stronger performance.