Applied Optoelectronics, Inc. (AAOI) vs Dayforce Inc (DAY)
A side-by-side comparison of Applied Optoelectronics, Inc. and Dayforce Inc across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of August 8, 2026. Differences are shown without an overall score or investment verdict.
AAOI
Applied Optoelectronics, Inc.
$135.63TechnologyAt close: Aug 7, 2026, 4:00 PM ET
DAY
Dayforce Inc
$69.86TechnologyAt close: Feb 3, 2026, 4:00 PM ET
Total return — AAOI vs DAY
growth of $100 · dividends reinvested · last 8yAAOI +33.7%DAY +123.8%DAY compounded faster
AAOI DAY
AAOI vs DAY: by the numbers
- •DAY is the larger company ($11.18B vs $10.88B market cap).
- •Both run net losses; DAY's is the smaller (-7.91% vs -9.57% net margin).
- •AAOI grew revenue faster over the past five years (20.68% vs 17.61% CAGR).
Metrics side by side
Valuation
| Metric | AAOI | DAY |
|---|---|---|
| Forward P/E | 131.26 | 25.46 |
| P/S ratio | 18.56 | 5.90 |
| P/B ratio | 6.63 | 4.14 |
| EV / EBITDA | N/A | 34.39 |
| FCF yield | N/A | 1.49% |
Profitability
| Metric | AAOI | DAY |
|---|---|---|
| Gross margin | 28.92% | 52.90% |
| Operating margin | -11.31% | 6.99% |
| Net margin | -9.57% | -7.91% |
| ROE | -3.42% | -5.56% |
| ROIC | -4.71% | 1.31% |
Growth (annualized)
| Metric | AAOI | DAY |
|---|---|---|
| Revenue CAGR (5Y) | 20.68% | 17.61% |
| FCF CAGR (5Y) | N/A | 68.25% |
| Total return CAGR (5Y) | 80.10% | -6.72% |
Frequently asked
- Which has grown faster, AAOI or DAY?
- Over the past five years, AAOI grew revenue faster — AAOI at a 20.68% CAGR versus DAY at 17.61%.
- How have AAOI and DAY total returns compared?
- Over the past 5 years, AAOI delivered 24.80% and DAY delivered -6.72% annualized total return. Past performance doesn't predict future results.
Go deeper
Dig into the metrics
Applied Optoelectronics P/E ratioDayforce P/E ratioApplied Optoelectronics dividend yieldDayforce dividend yieldApplied Optoelectronics ROEDayforce ROEApplied Optoelectronics operating marginDayforce operating marginApplied Optoelectronics revenue growthDayforce revenue growthApplied Optoelectronics free cash flowDayforce free cash flow
Applied Optoelectronics & Dayforce appear in these rankings
Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified August 8, 2026.