AAOI
Applied Optoelectronics, Inc.
AAOI's outlook is improving, though it still trails on the overall score.
RMBS
Rambus Inc.
RMBS has the edge over AAOI overall, supported by lower modeled downside 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.
RMBS Fundamentals
| Metric | Status |
|---|---|
| Healthy | |
| Strong | |
| Strong | |
| Strong |
RMBS's revenue, profitability, cash flow and balance sheet are all currently healthy.
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.
RMBS PE Valuation
| Level | PE | Price | Vs current |
|---|---|---|---|
| Cheap | 22x | $52.39 | -38% |
| Forward | 23x | $84.97 | — |
| Current | 35x | $84.97 | — |
| Fair | 36x | $86.46 | +1.8% |
| Expensive | 119x | $288 | +239% |
Historical ranges are pointers, not guarantees.
RMBS's PE is in its fair range at 35x. If earnings grow as analysts expect, today's price would be 23x next year's earnings, in its cheap range.
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.
RMBS Forward outlook
| Metric | Outlook |
|---|---|
| Strongly improving | |
| Strong growth | |
| Strong growth | |
| Strongly improving | |
| Limited | |
| High |
Analysts expect strong earnings and revenue growth for RMBS, with profitability improving.
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.
RMBS Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Forward | $3.74 | +54% |
| Q3 2026 | $2.43 | +16% |
| Q2 2026 | $2.18 | +3.3% |
| Q1 2026 | $2.10 | +9.9% |
| Q4 2025 | $2.11 | +28% |
| Q3 2025 | $2.10 | +30% |
| Q2 2025 | $2.11 | +0.5% |
| Q1 2025 | $1.91 | -42% |
| Q4 2024 | $1.65 | -45% |
RMBS 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 RMBS 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.
RMBS Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q3 2026 | $218.3M | +22% |
| Q2 2026 | $207.4M | +20% |
| Q1 2026 | $180.2M | +8.1% |
| Q4 2025 | $190.2M | +18% |
| Q3 2025 | $178.5M | +23% |
| Q2 2025 | $172.2M | +30% |
| Q1 2025 | $166.7M | +41% |
| Q4 2024 | $161.1M | +32% |
RMBS's revenue has grown year over year for 11 quarters in a row: $218M last quarter, up 22% from the same quarter a year ago.
| Quarter | Margin | YoY |
|---|---|---|
| Q3 2026 | 38% | +2.9 points |
| Q2 2026 | 35% | -1.5 points |
| Q1 2026 | 34% | -3.6 points |
| Q4 2025 | 37% | +1.3 points |
| Q3 2025 | 35% | -2.2 points |
| Q2 2025 | 37% | +6.1 points |
| Q1 2025 | 38% | +12 points |
| Q4 2024 | 36% | +7.2 points |
RMBS 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.
RMBS Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q3 2026 | $95.9M | +16% |
| Q2 2026 | $52.2M | -41% |
| Q1 2026 | $71.6M | +2.9% |
| Q4 2025 | $93.3M | +78% |
| Q3 2025 | $82.5M | +58% |
| Q2 2025 | $87.9M | +49% |
| Q1 2025 | $69.5M | +93% |
| Q4 2024 | $52.5M | -2.9% |
RMBS 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.
RMBS Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | -1.1% | -1.2M shares |
| 1 year | -0.5% | -516K shares |
| 3 years | -1.8% | -2M shares |
| 5 years | -4.3% | -4.9M shares |
| Available history | -2.8% | -3.1M shares |
RMBS has the edge over AAOI on shareholder dilution, with a more favorable share count trend.
| Quarter | Spent |
|---|---|
| Q3 2026 | $135.4M |
| Q2 2026 | $387,000 |
| Q1 2026 | $2.6M |
| Q4 2025 | $1.3M |
| Q3 2025 | — |
| Q2 2025 | $3.7M |
| Q1 2025 | $2.2M |
| Q4 2024 | — |
RMBS spent $140M buying back its own shares over the past year, more than ten times what it spent the year before.
AAOI Net Leverage
AAOI's operating earnings (EBITDA) were negative over the past year, so its debt can't be measured against them.
RMBS Net Leverage
| Quarter | Net Leverage | Status |
|---|---|---|
| Q3 2026 | -0.4x | Net Cash |
| Q2 2026 | -0.3x | Net Cash |
| Q1 2026 | -0.5x | Net Cash |
| Q4 2025 | -0.7x | Net Cash |
| Q3 2025 | -0.3x | Net Cash |
| Q2 2025 | -0.3x | Net Cash |
| Q1 2025 | -0.5x | Net Cash |
| Q4 2024 | -0.5x | Net Cash |
RMBS 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).
RMBS Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 43.4 | Neutral |
| Stochastic | 20.9 | Neutral |
RMBS's weekly RSI is 43 (neutral) and its Stochastic is 21 (neutral).
AAOI PE vs Technology Sector
AAOI has no meaningful PE right now: it lost money over the past year.
RMBS PE vs Technology Sector
| Metric | RMBS | Sector median | Relative |
|---|---|---|---|
| PE | 35x | 28x | 26% above |
| PE % | 48 | 35 | 13 pts above |
RMBS is trading at 35x earnings, a 26% 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.
RMBS Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $92.7 | 8.3% below |
| 20 week MA | $94.7 | 10% below |
| 50 week MA | $105.6 | 20% below |
| 100 week MA | $87.2 | 2.5% below |
| 200 week MA | $71.2 | 19% above |
RMBS has fallen below most of its moving averages, though it's still 19% above its 200-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 has the edge over RMBS on returns for 2026, with the stronger performance.
RMBS Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2020 | $13.8 | $17.5 | +27% |
| 2021 | $17.5 | $29.0 | +65% |
| 2022 | $29.0 | $36.0 | +24% |
| 2023 | $36.0 | $68.3 | +90% |
| 2024 | $68.3 | $54.2 | -21% |
| 2025 | $54.2 | $94.1 | +74% |
| 2026 YTD | $94.1 | $85.0 | -9.7% |
RMBS has finished higher in five of the last six years, three of them by more than 50%. It's down 9.7% so far in 2026.