AAOI
Applied Optoelectronics, Inc.
AAOI lost money over the past year, so it has no meaningful PE right now. Analysts expect earnings to recover and profitability to improve, though they disagree widely on how much.
KOSS
Koss Corporation
There isn't enough reported data to score KOSS yet.
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.
KOSS Fundamentals
| Metric | Status |
|---|---|
| Under pressure | |
| Weak | |
| Weak | |
| Strong |
KOSS's balance sheet is currently strong, but its revenue, profitability and cash flow are under pressure.
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.
KOSS PE Valuation
KOSS has no meaningful PE right now: it lost money over the past year.
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.
KOSS Forward outlook
There aren't enough analyst estimates for KOSS 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.
KOSS Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Q3 2026 | -$0.09 | -$0.08 |
| Q2 2026 | -$0.04 | +$0.05 |
| Q1 2026 | -$0.11 | -$0.03 |
| Q4 2025 | -$0.08 | $0.00 |
| Q3 2025 | -$0.01 | +$0.11 |
| Q2 2025 | -$0.09 | +$0.01 |
| Q1 2025 | -$0.08 | +$0.02 |
| Q4 2024 | -$0.08 | +$0.02 |
KOSS has the edge over AAOI on earnings, with more consistent year-over-year improvement.
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 KOSS 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 has the edge over KOSS on profitability, with a higher operating margin.
KOSS Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q3 2026 | $3.1M | -24% |
| Q2 2026 | $3.3M | +5.8% |
| Q1 2026 | $2.8M | +1.6% |
| Q4 2025 | $2.9M | -20% |
| Q3 2025 | $4.1M | +27% |
| Q2 2025 | $3.1M | +6.6% |
| Q1 2025 | $2.8M | +5.4% |
| Q4 2024 | $3.6M | +5.9% |
KOSS's revenue has slid since its 2021 peak: $3M last quarter, down 24% from the same quarter a year ago.
| Quarter | Margin | YoY |
|---|---|---|
| Q3 2026 | -13% | -12 points |
| Q2 2026 | 8.2% | +22 points |
| Q1 2026 | -25% | -6.8 points |
| Q4 2025 | -35% | -32 points |
| Q3 2025 | -1.1% | +19 points |
| Q2 2025 | -14% | -3.3 points |
| Q1 2025 | -19% | +4.5 points |
| Q4 2024 | -4% | +10 points |
KOSS's operating margin was −13% last quarter, down 12 points from the same quarter a year ago.
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.
KOSS Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q3 2026 | -$973.6K | -228% |
| Q2 2026 | $1M | +$1.6M |
| Q1 2026 | -$586.3K | -291% |
| Q4 2025 | -$1.1M | -$758.2K |
| Q3 2025 | $761.5K | +$917.2K |
| Q2 2025 | -$541.8K | -$367.1K |
| Q1 2025 | $306.2K | +14% |
| Q4 2024 | -$314.3K | -213% |
KOSS has the edge over AAOI on cash flow, with more consistent year-over-year improvement.
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.
KOSS Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | 0% | +3.5K shares |
| 1 year | -0.7% | -71.4K shares |
| 3 years | +2.5% | +232K shares |
| 5 years | +7% | +622K shares |
| Available history | +28% | +2.1M shares |
KOSS has the edge over AAOI on shareholder dilution, with a more favorable share count trend.
AAOI Net Leverage
AAOI's operating earnings (EBITDA) were negative over the past year, so its debt can't be measured against them.
KOSS Net Leverage
| Quarter | Net Leverage | Status |
|---|---|---|
| Q2 2022 | -7.7x | Net Cash |
| Q1 2022 | -8.2x | Net Cash |
| Q3 2020 | -10.7x | Net Cash |
| Q4 2019 | -61.3x | Net Cash |
KOSS 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).
KOSS Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 36.8 | Neutral |
| Stochastic | 14.7 | Oversold |
KOSS's weekly RSI is 37 (neutral) and its Stochastic is 15 (oversold).
AAOI PE vs Technology Sector
AAOI has no meaningful PE right now: it lost money over the past year.
KOSS PE vs Technology Sector
| Metric | KOSS | Sector median | Relative |
|---|---|---|---|
| PE | N/A | 28x | — |
KOSS has no meaningful PE right now: it lost money over the past year.
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 the edge over KOSS on trend strength, trading above more of its moving averages.
KOSS Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $3.58 | 9.2% below |
| 20 week MA | $3.64 | 11% below |
| 50 week MA | $3.96 | 18% below |
| 100 week MA | $4.76 | 32% below |
| 200 week MA | $4.71 | 31% below |
KOSS is in a downtrend: it's below all five of its weekly moving averages, and 31% below 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 KOSS on returns for 2026, with the stronger performance.
KOSS Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2020 | $1.54 | $2.34 | +52% |
| 2021 | $2.34 | $12.3 | +427% |
| 2022 | $12.3 | $5.11 | -59% |
| 2023 | $5.11 | $3.35 | -34% |
| 2024 | $3.35 | $8.00 | +139% |
| 2025 | $8.00 | $4.49 | -44% |
| 2026 YTD | $4.49 | $3.25 | -28% |
KOSS's yearly returns have swung widely, from +427% in 2021 to −59% in 2022. It's down 28% so far in 2026.