AAOI
Applied Optoelectronics, Inc.
AAOI offers stronger modeled upside, but that advantage does not outweigh its weaker overall profile.
FIVN
Five9, Inc.
FIVN 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.
FIVN Fundamentals
| Metric | Status |
|---|---|
| Healthy | |
| Healthy | |
| Strong | |
| Strong |
FIVN'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.
FIVN PE Valuation
| Level | PE | Price | Vs current |
|---|---|---|---|
| Forward | 7.8x | $28.19 | — |
| Cheap | 34x | $23.00 | -18% |
| Current | 42x | $28.19 | — |
| Fair | 48x | $32.39 | +15% |
| Expensive | 248x | $166 | +489% |
Historical ranges are pointers, not guarantees.
FIVN's PE is in its fair range at 42x. If earnings grow as analysts expect, today's price would be 7.8x next year's earnings, in its cheap range.
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.
FIVN Forward outlook
| Metric | Outlook |
|---|---|
| Strongly improving | |
| Strong growth | |
| Growth | |
| Improving | |
| Moderate | |
| Low |
Analysts expect earnings and revenue growth for FIVN, 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.
FIVN Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Forward | $3.59 | +436% |
| Q3 2026 | $0.67 | +86% |
| Q2 2026 | $0.69 | +667% |
| Q1 2026 | $0.66 | +$0.75 |
| Q4 2025 | $0.46 | +$0.66 |
| Q3 2025 | $0.36 | +$0.86 |
| Q2 2025 | $0.09 | +$0.81 |
| Q1 2025 | -$0.09 | +$0.76 |
| Q4 2024 | -$0.20 | +$0.93 |
FIVN 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 FIVN 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.
FIVN Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q3 2026 | $323.3M | +13% |
| Q2 2026 | $312.4M | +10% |
| Q1 2026 | $305.3M | +9.2% |
| Q4 2025 | $300.3M | +7.8% |
| Q3 2025 | $285.8M | +8.2% |
| Q2 2025 | $283.3M | +12% |
| Q1 2025 | $279.7M | +13% |
| Q4 2024 | $278.7M | +17% |
FIVN's revenue has grown year over year every quarter since late 2020: $323M last quarter, up 13% from the same quarter a year ago.
| Quarter | Margin | YoY |
|---|---|---|
| Q3 2026 | 4.4% | -1.2 points |
| Q2 2026 | 0.6% | +1.2 points |
| Q1 2026 | 6.1% | +8 points |
| Q4 2025 | 6.6% | +5.1 points |
| Q3 2025 | 5.6% | +11 points |
| Q2 2025 | -0.6% | +7.1 points |
| Q1 2025 | -1.9% | +6.4 points |
| Q4 2024 | 1.5% | +9.3 points |
FIVN 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.
FIVN Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q3 2026 | $53.3M | +9.5% |
| Q2 2026 | $24.5M | -23% |
| Q1 2026 | $58.7M | +34% |
| Q4 2025 | $77.3M | +91% |
| Q3 2025 | $48.7M | +82% |
| Q2 2025 | $31.6M | +141% |
| Q1 2025 | $43.7M | +114% |
| Q4 2024 | $40.5M | +60% |
FIVN 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.
FIVN Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | -9.6% | -8.2M shares |
| 1 year | -11% | -10M shares |
| 3 years | +6.8% | +4.9M shares |
| 5 years | +14% | +9.5M shares |
| Available history | +17% | +11.3M shares |
FIVN has the edge over AAOI on shareholder dilution, with a more favorable share count trend.
| Quarter | Spent |
|---|---|
| Q3 2026 | — |
| Q2 2026 | $90M |
| Q1 2026 | $10M |
AAOI Net Leverage
AAOI's operating earnings (EBITDA) were negative over the past year, so its debt can't be measured against them.
FIVN Net Leverage
| Quarter | Net Leverage | Status |
|---|---|---|
| Q3 2026 | -2.0x | Net Cash |
| Q2 2026 | -1.5x | Net Cash |
| Q1 2026 | -2.3x | Net Cash |
| Q4 2025 | -2.6x | Net Cash |
| Q3 2025 | -2.7x | Net Cash |
| Q2 2025 | -5.3x | Net Cash |
| Q1 2025 | -19.3x | Net Cash |
| Q4 2024 | -226.3x | Net Cash |
FIVN 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).
FIVN Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 48.2 | Neutral |
| Stochastic | 39.5 | Neutral |
FIVN's weekly RSI is 48 (neutral) and its Stochastic is 40 (neutral).
AAOI PE vs Technology Sector
AAOI has no meaningful PE right now: it lost money over the past year.
FIVN PE vs Technology Sector
| Metric | FIVN | Sector median | Relative |
|---|---|---|---|
| PE | 42x | 28x | 51% above |
| PE % | 37 | 35 | 2 pts above |
FIVN is trading at 42x earnings, a 51% premium to the Technology sector's median of 28x.
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.
FIVN Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $33.6 | 16% below |
| 20 week MA | $31.2 | 9.7% below |
| 50 week MA | $23.9 | 18% above |
| 100 week MA | $26.2 | 7.5% above |
| 200 week MA | $43.0 | 34% below |
FIVN 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 has the edge over FIVN on returns for 2026, with the stronger performance.
FIVN Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2020 | $66.6 | $180.0 | +170% |
| 2021 | $180.0 | $139.9 | -22% |
| 2022 | $139.9 | $65.9 | -53% |
| 2023 | $65.9 | $78.7 | +19% |
| 2024 | $78.7 | $41.4 | -47% |
| 2025 | $41.4 | $20.0 | -52% |
| 2026 YTD | $20.0 | $28.2 | +41% |
FIVN's yearly returns have swung widely, from +170% in 2020 to −53% in 2022. It's up 41% so far in 2026.