AAOI
Applied Optoelectronics, Inc.
AAOI's outlook is improving, though it still trails on the overall score.
ARM
Arm Holdings plc American Depositary Shares
ARM has the edge over AAOI overall, supported by lower modeled downside and stronger valuation.
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.
ARM Fundamentals
| Metric | Status |
|---|---|
| Healthy | |
| Healthy | |
| Strong | |
| Strong |
ARM'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.
ARM PE Valuation
| Level | PE | Price | Vs current |
|---|---|---|---|
| Cheap | 167x | $147 | -27% |
| Fair | 224x | $197 | -1.4% |
| Current | 227x | $200 | — |
| Expensive | 361x | $317 | +59% |
Historical ranges are pointers, not guarantees.
ARM's PE is in its fair range at 227x.
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.
ARM Forward outlook
| Metric | Outlook |
|---|---|
| -- | |
| Strong growth | |
| Strong growth | |
| Improving | |
| Moderate | |
| Moderate |
Analysts expect strong earnings and revenue growth for ARM, 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.
ARM Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Q3 2026 | $0.88 | +13% |
| Q2 2026 | $0.98 | +48% |
| Q1 2026 | $0.85 | +13% |
| Q4 2025 | $0.75 | -1.3% |
| Q3 2025 | $0.78 | +30% |
| Q1 2025 | $0.75 | +159% |
| Q4 2024 | $0.76 | +850% |
| Q3 2024 | $0.60 | +233% |
ARM 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 ARM 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.
ARM Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q3 2026 | $1.4B | +27% |
| Q2 2026 | $1.3B | +22% |
| Q1 2026 | $1.5B | +20% |
| Q4 2025 | $1.2B | +26% |
| Q3 2025 | $1.1B | +34% |
| Q2 2025 | $1.1B | +12% |
| Q1 2025 | $1.2B | +34% |
| Q4 2024 | $983M | +19% |
ARM's revenue has grown year over year for eight quarters in a row: $1.4B last quarter, up 27% from the same quarter a year ago.
| Quarter | Margin | YoY |
|---|---|---|
| Q3 2026 | 14% | -0.4 points |
| Q2 2026 | 7.1% | -3.8 points |
| Q1 2026 | 29% | -3.6 points |
| Q4 2025 | 15% | -2.9 points |
| Q3 2025 | 14% | +6.8 points |
| Q2 2025 | 11% | -8.5 points |
| Q1 2025 | 33% | +31 points |
| Q4 2024 | 18% | +1.5 points |
ARM 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.
ARM Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q3 2026 | $135M | -69% |
| Q2 2026 | $705M | +296% |
| Q1 2026 | $186M | +1.1% |
| Q4 2025 | $186M | -48% |
| Q3 2025 | $429M | +$476M |
| Q2 2025 | $178M | +$497M |
| Q1 2025 | $184M | -72% |
| Q4 2024 | $360M | +25% |
ARM 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.
ARM Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | +0.1% | +1M shares |
| 1 year | +0.9% | +10M shares |
| 3 years | +5.2% | +53.7M shares |
ARM has the edge over AAOI on shareholder dilution, with a more favorable share count trend.
| Quarter | Spent |
|---|---|
| Q1 2023 | — |
| Q4 2022 | — |
| Q3 2022 | — |
| Q2 2022 | — |
AAOI Net Leverage
AAOI's operating earnings (EBITDA) were negative over the past year, so its debt can't be measured against them.
ARM Net Leverage
| Quarter | Net Leverage | Status |
|---|---|---|
| Q1 2023 | -1.6x | Net Cash |
ARM 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).
ARM Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 43.0 | Neutral |
| Stochastic | 11.0 | Oversold |
ARM's weekly RSI is 43 (neutral) and its Stochastic is 11 (oversold).
AAOI PE vs Technology Sector
AAOI has no meaningful PE right now: it lost money over the past year.
ARM PE vs Technology Sector
| Metric | ARM | Sector median | Relative |
|---|---|---|---|
| PE | 227x | 28x | 715% above |
| PE % | 51 | 23 | 28 pts above |
ARM is trading at 227x earnings, a 715% 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 |
ARM has stronger trend alignment. AAOI is above 1 of 5 weekly averages versus ARM above 1 of 4.
ARM Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $237.8 | 16% below |
| 20 week MA | $257.3 | 22% below |
| 50 week MA | $213.9 | 6.6% below |
| 100 week MA | $176.5 | 13% above |
ARM has pulled back, but its long-term trend is still up: it's below its 8-, 20- and 50-week averages, but 13% above its 100-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.
ARM Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2023 | $60.8 | $75.2 | +24% |
| 2024 | $75.2 | $129.2 | +72% |
| 2025 | $129.2 | $110.3 | -15% |
| 2026 YTD | $110.3 | $199.8 | +81% |
ARM has the edge over AAOI on returns for 2026, with the stronger performance.