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.
AMPG
AmpliTech Group, Inc.
There isn't enough reported data to score AMPG 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.
AMPG Fundamentals
| Metric | Status |
|---|---|
| Stable | |
| Under pressure | |
| Unavailable | |
| Weak |
AMPG's revenue is currently stable, but its profitability and balance sheet are under pressure. 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.
AMPG PE Valuation
AMPG 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 78x 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.
AMPG Forward outlook
| Metric | Outlook |
|---|---|
| -- | |
| Returning to profit | |
| Strong growth | |
| Strongly improving | |
| Limited | |
| High |
Analysts expect AMPG to return to profit, with revenue growing.
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.
AMPG Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Forward | $0.03 | — |
| Q3 2026 | -$0.39 | +$0.12 |
| Q2 2026 | -$0.33 | +$0.29 |
| Q1 2026 | -$0.30 | +$0.39 |
| Q4 2025 | -$0.33 | +$0.75 |
| Q3 2025 | -$0.51 | +$0.31 |
| Q2 2025 | -$0.62 | +$0.17 |
| Q1 2025 | -$0.69 | -$0.01 |
| Q4 2024 | -$1.08 | -$0.82 |
AMPG 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 AMPG 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 AMPG on profitability, with a higher operating margin.
AMPG Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q3 2026 | $6.6M | +8% |
| Q2 2026 | $8.1M | -27% |
| Q1 2026 | $5.3M | +49% |
| Q4 2025 | $4.5M | +142% |
| Q3 2025 | $6.1M | +115% |
| Q2 2025 | $11M | +336% |
| Q1 2025 | $3.6M | +57% |
| Q4 2024 | $1.9M | -54% |
AMPG's revenue is recovering but still below its 2025 peak: $7M last quarter, up 8% from the same quarter a year ago.
| Quarter | Margin | YoY |
|---|---|---|
| Q3 2026 | -30% | -27 points |
| Q2 2026 | -40% | -22 points |
| Q1 2026 | -30% | +22 points |
| Q4 2025 | -73% | +161 points |
| Q3 2025 | -3.6% | +35 points |
| Q2 2025 | -17% | +45 points |
| Q1 2025 | -53% | +9.8 points |
| Q4 2024 | -234% | -222 points |
AMPG's operating margin was −30% last quarter, down 27 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 |
AMPG has the stronger cash trend. Its trailing FCF is down 61% versus its history, compared with AAOI at down 676%.
AMPG Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q3 2026 | $192.4K | +$1.6M |
| Q4 2025 | -$3.5M | -$2.3M |
| Q3 2025 | -$1.4M | +$303.2K |
| Q2 2025 | -$2.4M | -$1M |
| Q1 2025 | -$2.4M | -$1.3M |
| Q4 2024 | -$1.2M | +$563.1K |
| Q3 2024 | -$1.7M | -$1.1M |
| Q2 2024 | -$1.3M | -$2.5K |
AMPG has burned cash in almost every quarter: −$7M over the past year, against −$7M 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 the edge over AMPG on shareholder dilution, with a more favorable share count trend.
AMPG Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | +14% | +3.6M shares |
| 1 year | +41% | +8.4M shares |
| 3 years | +201% | +19.4M shares |
| 5 years | +421% | +23.4M shares |
AMPG has 29M diluted shares, up 41% from a year ago.
AAOI Net Leverage
AAOI's operating earnings (EBITDA) were negative over the past year, so its debt can't be measured against them.
AMPG Net Leverage
| Quarter | Net Leverage | Status |
|---|---|---|
| Q4 2019 | 6.8x | High |
AMPG's net debt is about 6.8 years of its operating earnings (EBITDA).
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).
AMPG Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 39.5 | Neutral |
| Stochastic | 5.5 | Oversold |
AMPG's weekly RSI is 40 (neutral) and its Stochastic is 5 (oversold).
AAOI PE vs Technology Sector
AAOI has no meaningful PE right now: it lost money over the past year.
AMPG PE vs Technology Sector
AMPG 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 AMPG on trend strength, trading above more of its moving averages.
AMPG Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $2.69 | 13% below |
| 20 week MA | $3.89 | 40% below |
| 50 week MA | $3.63 | 35% below |
| 100 week MA | $3.15 | 25% below |
| 200 week MA | $2.50 | 6% below |
AMPG is in a downtrend: it's below all five of its weekly moving averages, and 6% 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 AMPG on returns for 2026, with the stronger performance.
AMPG Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2021 | $8.80 | $4.12 | -53% |
| 2022 | $4.12 | $2.24 | -46% |
| 2023 | $2.24 | $1.88 | -16% |
| 2024 | $1.88 | $5.71 | +204% |
| 2025 | $5.71 | $2.91 | -49% |
| 2026 YTD | $2.91 | $2.35 | -19% |
AMPG's yearly returns have swung widely, from +204% in 2024 to −53% in 2021. It's down 19% so far in 2026.