AAOI
Applied Optoelectronics, Inc.
AAOI's outlook is improving, though it still trails on the overall score.
VICR
Vicor Corporation
VICR has the edge over AAOI overall, supported by stronger valuation and lower modeled downside.
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.
VICR Fundamentals
| Metric | Status |
|---|---|
| Strong | |
| Strong | |
| Stable | |
| Strong |
VICR's revenue, profitability and balance sheet are currently strong, and its cash flow is 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.
VICR PE Valuation
| Level | PE | Price | Vs current |
|---|---|---|---|
| Forward | 29x | $165 | — |
| Current | 43x | $165 | — |
| Cheap | 54x | $206 | +25% |
| Fair | 88x | $338 | +105% |
| Expensive | 337x | $1,287 | +682% |
Historical ranges are pointers, not guarantees.
VICR's PE is in its cheap range at 43x. If earnings grow as analysts expect, today's price would be 29x next year's earnings.
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.
VICR Forward outlook
| Metric | Outlook |
|---|---|
| Strongly improving | |
| Strong growth | |
| Strong growth | |
| Strongly improving | |
| Limited | |
| High |
Analysts expect strong earnings and revenue growth for VICR, 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.
VICR Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Forward | $5.66 | +48% |
| Q3 2026 | $3.82 | +108% |
| Q2 2026 | $3.12 | +112% |
| Q1 2026 | $2.99 | +464% |
| Q4 2025 | $2.61 | +1764% |
| Q3 2025 | $1.84 | +1944% |
| Q2 2025 | $1.47 | +635% |
| Q1 2025 | $0.53 | -13% |
| Q4 2024 | $0.14 | -88% |
VICR 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 VICR 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.
VICR Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q3 2026 | $197.1M | +79% |
| Q2 2026 | $143.4M | +1.6% |
| Q1 2026 | $113M | +20% |
| Q4 2025 | $107.3M | +12% |
| Q3 2025 | $110.4M | +19% |
| Q2 2025 | $141M | +64% |
| Q1 2025 | $94M | +12% |
| Q4 2024 | $96.2M | +3.8% |
VICR's revenue has grown year over year for eight quarters in a row: $197M last quarter, up 79% from the same quarter a year ago.
| Quarter | Margin | YoY |
|---|---|---|
| Q3 2026 | 37% | +18 points |
| Q2 2026 | 24% | -7.9 points |
| Q1 2026 | 15% | +15 points |
| Q4 2025 | 15% | +5 points |
| Q3 2025 | 19% | +13 points |
| Q2 2025 | 32% | +32 points |
| Q1 2025 | -0.2% | +19 points |
| Q4 2024 | 9.6% | +1.6 points |
VICR 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.
VICR Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q3 2026 | $34M | -1.3% |
| Q2 2026 | $23M | -61% |
| Q1 2026 | -$16.3M | -205% |
| Q4 2025 | $10.2M | +21% |
| Q3 2025 | $34.5M | +144% |
| Q2 2025 | $59M | +526% |
| Q1 2025 | $15.6M | +$20.3M |
| Q4 2024 | $8.4M | -42% |
VICR 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.
VICR Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | -0.2% | -99K shares |
| 1 year | +6% | +2.7M shares |
| 3 years | +5.4% | +2.4M shares |
| 5 years | +5.7% | +2.6M shares |
| Available history | +14% | +5.9M shares |
VICR has the edge over AAOI on shareholder dilution, with a more favorable share count trend.
| Quarter | Spent |
|---|---|
| Q3 2026 | — |
| Q4 2025 | $2.2M |
| Q3 2025 | $15.4M |
| Q4 2024 | — |
AAOI Net Leverage
AAOI's operating earnings (EBITDA) were negative over the past year, so its debt can't be measured against them.
VICR Net Leverage
| Quarter | Net Leverage | Status |
|---|---|---|
| Q3 2026 | -3.2x | Net Cash |
| Q2 2026 | -4.1x | Net Cash |
| Q1 2026 | -3.4x | Net Cash |
| Q4 2025 | -3.9x | Net Cash |
| Q3 2025 | -3.8x | Net Cash |
| Q2 2025 | -4.3x | Net Cash |
| Q1 2025 | -8.8x | Net Cash |
| Q4 2024 | -16.0x | Net Cash |
VICR 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).
VICR Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 42.9 | Neutral |
| Stochastic | 13.5 | Oversold |
VICR's weekly RSI is 43 (neutral) and its Stochastic is 14 (oversold).
AAOI PE vs Technology Sector
AAOI has no meaningful PE right now: it lost money over the past year.
VICR PE vs Technology Sector
| Metric | VICR | Sector median | Relative |
|---|---|---|---|
| PE | 43x | 28x | 55% above |
| PE % | 11 | 35 | 24 pts below |
VICR is trading at 43x earnings, a 55% 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.
VICR Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $215.9 | 24% below |
| 20 week MA | $219.6 | 25% below |
| 50 week MA | $206.6 | 20% below |
| 100 week MA | $130.3 | 26% above |
| 200 week MA | $88.4 | 86% above |
VICR 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.
VICR Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2020 | $45.6 | $93.9 | +106% |
| 2021 | $93.9 | $124.0 | +32% |
| 2022 | $124.0 | $52.6 | -58% |
| 2023 | $52.6 | $44.9 | -15% |
| 2024 | $44.9 | $49.9 | +11% |
| 2025 | $49.9 | $111.0 | +123% |
| 2026 YTD | $111.0 | $164.7 | +48% |
VICR has the edge over AAOI on returns for 2026, with the stronger performance.