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.
CLSK
CleanSpark, Inc.
There isn't enough reported data to score CLSK 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.
CLSK Fundamentals
| Metric | Status |
|---|---|
| Healthy | |
| Weak | |
| Unavailable | |
| Weak |
CLSK's revenue is currently healthy, but its profitability and balance sheet are weak. There isn't enough data to rate its cash flow.
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.
CLSK PE Valuation
CLSK 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 |
AAOI has the edge over CLSK on the outlook, with more favorable earnings and revenue expectations.
CLSK Forward outlook
| Metric | Outlook |
|---|---|
| -- | |
| Losses growing | |
| Stable | |
| Strongly weakening | |
| Limited | |
| Low |
Analysts expect CLSK's losses to grow, with revenue holding steady. However, they disagree widely on these estimates.
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 has the edge over CLSK on earnings, with more consistent year-over-year improvement.
CLSK Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Q2 2026 | -$3.80 | -614% |
| Q1 2026 | -$2.09 | -$1.02 |
| Q4 2025 | -$1.06 | -$1.06 |
| Q3 2025 | $1.12 | +$1.81 |
| Q2 2023 | -$1.77 | -$1.25 |
| Q1 2023 | -$2.36 | -$2.06 |
| Q4 2022 | -$2.13 | -$2.05 |
| Q3 2022 | -$1.35 | -$0.60 |
CLSK has swung to a loss: it lost $3.80 per share over the past year, after a profit the year before.
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 stronger quarterly revenue trend. Revenue is up 127% for AAOI versus up 70% for CLSK.
| 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.
CLSK Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q3 2024 | $89.3M | +70% |
| Q2 2024 | $104.1M | +129% |
| Q1 2024 | $111.8M | +163% |
| Q4 2023 | $73.8M | +165% |
| Q3 2023 | $52.5M | +101% |
| Q2 2023 | $45.5M | +47% |
| Q1 2023 | $42.5M | +2.2% |
| Q4 2022 | $27.8M | -33% |
CLSK's revenue has grown year over year for seven quarters in a row: $89M last quarter, up 70% from the same quarter a year ago.
| Quarter | Margin | YoY |
|---|---|---|
| Q3 2024 | -73% | +58 points |
| Q2 2024 | -239% | -205 points |
| Q1 2024 | 123% | +164 points |
| Q4 2023 | 39% | +143 points |
| Q3 2023 | -132% | +24 points |
| Q2 2023 | -34% | +14 points |
| Q1 2023 | -41% | -49 points |
| Q4 2022 | -104% | -115 points |
CLSK's operating margin was −73% last quarter, up 58 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 |
CLSK has the stronger cash trend. Its trailing FCF is down 283% versus its history, compared with AAOI at down 676%.
CLSK Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q2 2026 | -$118.4M | -$8.5M |
| Q1 2026 | -$173.4M | -$61.1M |
| Q4 2025 | -$198.1M | -$78.6M |
| Q2 2025 | -$109.9M | -$31.5M |
| Q1 2025 | -$112.3M | -$53.9M |
| Q4 2024 | -$119.5M | -$51.9M |
| Q3 2024 | -$95.5M | -$32.7M |
| Q2 2024 | -$78.3M | -$59.1M |
CLSK has burned cash in most quarters: −$600M over the past year, against −$406M the year before.
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.
CLSK Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | -4.1% | -11M shares |
| 1 year | -21% | -68.8M shares |
| 3 years | +287% | +190M shares |
| 5 years | +4901% | +252M shares |
CLSK has the edge over AAOI on shareholder dilution, with a more favorable share count trend.
| Quarter | Spent |
|---|---|
| Q2 2026 | — |
| Q1 2026 | — |
| Q4 2025 | $460M |
| Q3 2025 | — |
| Q2 2025 | — |
| Q1 2025 | — |
| Q4 2024 | $145M |
CLSK spent $460M buying back its own shares over the past year.
AAOI Net Leverage
AAOI's operating earnings (EBITDA) were negative over the past year, so its debt can't be measured against them.
CLSK Net Leverage
| Quarter | Net Leverage | Status |
|---|---|---|
| Q1 2026 | 150.4x | High |
| Q4 2025 | 7.4x | High |
| Q3 2025 | 0.9x | Very low |
| Q2 2025 | 1.1x | Healthy |
| Q4 2024 | 1.6x | Healthy |
| Q3 2024 | -20.5x | Net Cash |
| Q2 2024 | -14.8x | Net Cash |
| Q1 2024 | -1.4x | Net Cash |
CLSK's net debt is more than 20 years of its operating earnings (EBITDA), up from 1.6 years a year ago.
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).
CLSK Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 34.1 | Neutral |
| Stochastic | 8.2 | Oversold |
CLSK's weekly RSI is 34 (neutral) and its Stochastic is 8 (oversold).
AAOI PE vs Technology Sector
AAOI has no meaningful PE right now: it lost money over the past year.
CLSK PE vs Technology Sector
| Metric | CLSK | Sector median | Relative |
|---|---|---|---|
| PE | N/A | 28x | — |
CLSK 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 CLSK on trend strength, trading above more of its moving averages.
CLSK Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $9.27 | 26% below |
| 20 week MA | $11.5 | 40% below |
| 50 week MA | $12.0 | 43% below |
| 100 week MA | $11.5 | 41% below |
| 200 week MA | $10.5 | 35% below |
CLSK is in a downtrend: it's below all five of its weekly moving averages, and 35% 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 CLSK on returns for 2026, with the stronger performance.
CLSK Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2020 | $16.2 | $24.9 | +54% |
| 2021 | $24.9 | $11.9 | -52% |
| 2022 | $11.9 | $1.97 | -83% |
| 2023 | $1.97 | $11.0 | +460% |
| 2024 | $11.0 | $9.78 | -11% |
| 2025 | $9.78 | $10.9 | +12% |
| 2026 YTD | $10.9 | $6.84 | -37% |
CLSK's yearly returns have swung widely, from +460% in 2023 to −83% in 2022. It's down 37% so far in 2026.