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.
ZEPP
Zepp Health Corporation
There isn't enough reported data to score ZEPP 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.
ZEPP Fundamentals
| Metric | Status |
|---|---|
| Unavailable | |
| Under pressure | |
| Unavailable | |
| Healthy |
ZEPP's balance sheet is currently healthy, but its profitability is under pressure. There isn't enough data to rate its revenue and 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.
ZEPP PE Valuation
ZEPP 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.
ZEPP Forward outlook
There aren't enough analyst estimates for ZEPP 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 has the edge over ZEPP in the latest year-over-year earnings comparison.
ZEPP Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Q4 2025 | -$0.16 | +$0.13 |
| Q4 2024 | -$0.29 | +$0.23 |
| Q4 2023 | -$0.52 | +$0.18 |
| Q4 2022 | -$0.70 | -326% |
| Q4 2021 | $0.31 | -42% |
| Q4 2020 | $0.53 | -60% |
| Q4 2019 | $1.34 | +332% |
| Q4 2018 | $0.31 | -21% |
ZEPP has swung to a loss: it lost $0.16 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 edge over ZEPP in the latest year-over-year revenue comparison.
| 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.
ZEPP Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q4 2025 | $258.9M | +42% |
| Q4 2024 | $182.6M | -51% |
| Q4 2023 | $374.5M | -40% |
| Q4 2022 | $621.7M | -34% |
| Q4 2021 | $938M | -2.8% |
| Q4 2020 | $965.5M | +11% |
| Q4 2019 | $872.3M | +59% |
| Q4 2018 | $547.1M | +78% |
ZEPP's revenue has slid since its 2020 peak: $259M last quarter, down 72% from the same quarter a year ago.
| Quarter | Margin | YoY |
|---|---|---|
| Q4 2025 | -11% | -13 points |
| Q4 2024 | -26% | -29 points |
| Q4 2023 | -8.3% | -19 points |
| Q4 2022 | -9.9% | -20 points |
| Q4 2021 | 1.5% | -7.4 points |
| Q4 2020 | 2.7% | -4.3 points |
| Q4 2019 | 10% | +11 points |
| Q4 2018 | 10% | N/A |
ZEPP's operating margin was −11% last quarter, down 13 points from the same quarter a year ago, near the bottom of its range since 2016.
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.
ZEPP Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q4 2025 | -$26.2M | -$413K |
| Q4 2024 | -$25.8M | -160% |
| Q4 2023 | $43.1M | +$162.6M |
| Q4 2022 | -$119.4M | -$77.6M |
| Q4 2021 | -$41.8M | -478% |
| Q4 2020 | $11.1M | -81% |
| Q4 2019 | $59.1M | -43% |
| Q4 2018 | $103.6M | +218% |
ZEPP's free cash flow was −$128M over the past year, against $132M 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 ZEPP on shareholder dilution, with a more favorable share count trend.
ZEPP Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | -1.7% | -4.4M shares |
| 1 year | +285% | +188M shares |
ZEPP has 254M diluted shares, up 285% from a year ago.
| Quarter | Spent |
|---|---|
| Q4 2025 | $1.2M |
| Q4 2024 | $2.3M |
| Q4 2023 | $2.7M |
| Q4 2022 | $8M |
| Q4 2021 | $2.1M |
| Q4 2018 | $1.2M |
| Q4 2016 | — |
AAOI Net Leverage
AAOI's operating earnings (EBITDA) were negative over the past year, so its debt can't be measured against them.
ZEPP Net Leverage
| Quarter | Net Leverage | Status |
|---|---|---|
| Q4 2021 | -5.1x | Net Cash |
| Q4 2020 | -11.0x | Net Cash |
| Q4 2019 | -2.9x | Net Cash |
| Q4 2018 | -3.8x | Net Cash |
| Q4 2017 | -1.9x | Net Cash |
ZEPP 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).
ZEPP Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 29.6 | Oversold |
| Stochastic | 4.5 | Oversold |
ZEPP's weekly RSI is 30 (oversold) and its Stochastic is 4 (oversold).
AAOI PE vs Technology Sector
AAOI has no meaningful PE right now: it lost money over the past year.
ZEPP PE vs Technology Sector
| Metric | ZEPP | Sector median | Relative |
|---|---|---|---|
| PE | N/A | 28x | — |
ZEPP 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 ZEPP on trend strength, trading above more of its moving averages.
ZEPP Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $3.03 | 17% below |
| 20 week MA | $4.18 | 40% below |
| 50 week MA | $11.9 | 79% below |
| 100 week MA | $14.0 | 82% below |
| 200 week MA | $9.23 | 73% below |
ZEPP is in a downtrend: it's below all five of its weekly moving averages, and 73% 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 ZEPP on returns for 2026, with the stronger performance.
ZEPP Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2020 | $47.9 | $47.9 | -0.1% |
| 2021 | $47.9 | $20.7 | -57% |
| 2022 | $20.7 | $6.00 | -71% |
| 2023 | $6.00 | $5.68 | -5.3% |
| 2024 | $5.68 | $2.78 | -51% |
| 2025 | $2.78 | $28.3 | +917% |
| 2026 YTD | $28.3 | $2.51 | -91% |
ZEPP's yearly returns have swung widely, from +917% in 2025 to −71% in 2022. It's down 91% so far in 2026.