AAOI
Applied Optoelectronics, Inc.
AAOI offers stronger modeled upside, but that advantage does not outweigh its weaker overall profile.
ZETA
Zeta Global Holdings Corp.
ZETA has the edge over AAOI overall, supported by lower modeled downside and stronger fundamentals.
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.
ZETA Fundamentals
| Metric | Status |
|---|---|
| Strong | |
| Healthy | |
| Strong | |
| Healthy |
ZETA's revenue, profitability, cash flow and balance sheet are all currently healthy.
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.
ZETA PE Valuation
| Level | PE | Price | Vs current |
|---|---|---|---|
| Forward | 29x | $37.27 | — |
| Current | 248x | $37.27 | — |
| Cheap | N/A | N/A | N/A |
| Fair | N/A | N/A | N/A |
| Expensive | N/A | N/A | N/A |
Historical ranges are pointers, not guarantees.
ZETA's PE is 248x, but its earnings don't support one, so it isn't a reliable read right now.
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.
ZETA Forward outlook
| Metric | Outlook |
|---|---|
| Strongly improving | |
| Strong growth | |
| Strong growth | |
| Strongly improving | |
| Limited | |
| Low |
Analysts expect strong earnings and revenue growth for ZETA, with profitability improving. 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 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.
ZETA Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Forward | $1.27 | +748% |
| Q3 2026 | $0.15 | +$0.23 |
| Q2 2026 | -$0.01 | +$0.14 |
| Q1 2026 | -$0.10 | +$0.15 |
| Q4 2025 | -$0.14 | +$0.24 |
| Q3 2025 | -$0.08 | +$0.61 |
| Q2 2025 | -$0.15 | +$0.72 |
| Q1 2025 | -$0.25 | +$0.80 |
| Q4 2024 | -$0.38 | +$0.82 |
ZETA 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 ZETA 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.
ZETA Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q3 2026 | $492.7M | +46% |
| Q2 2026 | $442.8M | +44% |
| Q1 2026 | $396.3M | +50% |
| Q4 2025 | $394.6M | +25% |
| Q3 2025 | $337.2M | +26% |
| Q2 2025 | $308.4M | +35% |
| Q1 2025 | $264.4M | +36% |
| Q4 2024 | $314.7M | +50% |
ZETA's revenue has grown year over year every quarter since early 2021: $493M last quarter, up 46% from the same quarter a year ago.
| Quarter | Margin | YoY |
|---|---|---|
| Q3 2026 | 9.3% | +6.7 points |
| Q2 2026 | 3.8% | +5.5 points |
| Q1 2026 | -4.8% | +1.3 points |
| Q4 2025 | 4.5% | +2.3 points |
| Q3 2025 | 2.6% | +7.2 points |
| Q2 2025 | -1.7% | +10 points |
| Q1 2025 | -6.1% | +12 points |
| Q4 2024 | 2.2% | +17 points |
ZETA 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.
ZETA Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q3 2026 | $88.3M | +68% |
| Q2 2026 | $64.4M | +62% |
| Q1 2026 | $46.7M | +46% |
| Q4 2025 | $60.9M | +72% |
| Q3 2025 | $52.4M | +78% |
| Q2 2025 | $39.7M | +63% |
| Q1 2025 | $32.1M | +70% |
| Q4 2024 | $35.4M | +66% |
ZETA 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.
ZETA Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | +3.1% | +8M shares |
| 1 year | +19% | +42.2M shares |
| 3 years | +67% | +107M shares |
| 5 years | +417% | +213M shares |
| Available history | +712% | +232M shares |
ZETA has the edge over AAOI on shareholder dilution, with a more favorable share count trend.
| Quarter | Spent |
|---|---|
| Q1 2021 | — |
| Q4 2020 | — |
| Q3 2020 | — |
| Q2 2020 | — |
| Q1 2020 | — |
AAOI Net Leverage
AAOI's operating earnings (EBITDA) were negative over the past year, so its debt can't be measured against them.
ZETA Net Leverage
| Quarter | Net Leverage | Status |
|---|---|---|
| Q3 2026 | -0.7x | Net Cash |
| Q2 2026 | -1.0x | Net Cash |
| Q1 2026 | -1.1x | Net Cash |
| Q4 2025 | -1.6x | Net Cash |
| Q3 2025 | -3.0x | Net Cash |
| Q2 2025 | -4.5x | Net Cash |
| Q1 2025 | -14.1x | Net Cash |
ZETA 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).
ZETA Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 70.3 | Overbought |
| Stochastic | 75.8 | Neutral |
ZETA's weekly RSI is 70 (overbought) and its Stochastic is 76 (neutral).
AAOI PE vs Technology Sector
AAOI has no meaningful PE right now: it lost money over the past year.
ZETA PE vs Technology Sector
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.
ZETA Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $32.6 | 15% above |
| 20 week MA | $28.6 | 30% above |
| 50 week MA | $22.6 | 65% above |
| 100 week MA | $19.7 | 89% above |
| 200 week MA | $16.7 | 123% above |
ZETA 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.
ZETA Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2021 | $8.27 | $8.40 | +1.6% |
| 2022 | $8.40 | $8.21 | -2.3% |
| 2023 | $8.21 | $8.82 | +7.4% |
| 2024 | $8.82 | $17.7 | +100% |
| 2025 | $17.7 | $20.7 | +17% |
| 2026 YTD | $20.7 | $37.3 | +80% |
ZETA has the edge over AAOI on returns for 2026, with the stronger performance.