ACM Research Inc vs Five9 Inc — how do they compare? ACM Research Inc trades at $83.18 (market cap $5.66B), while Five9 Inc trades at $31.73 (market cap $2.33B). The key difference: ACM Research Inc is far larger — about 2.4× Five9 Inc's market cap, and Five9 Inc is trading nearer its 52-week high, ACM Research Inc nearer its low. Which is the better fit depends on your goals.
| ACMR | FIVN | |
|---|---|---|
Market Cap | $5.66B | $2.33B |
Sector | Technology | Technology |
52-Week High | $126.89 | $34.48 |
52-Week Low | $25.02 | $13.61 |
Enterprise Value | $4.57B | $2.48B |
Signals from Pluang's Aura AI — not financial advice
ACMR trades at $81.26, up 2.33% today, with a neutral technical signal and bearish moving averages. The stock shows strong fundamentals with Q2 2026 EPS beating estimates at $0.61 versus $0.42 expected, revenue growth of 36% year-over-year to $292.9 million, and raised 2026 guidance. Net income margin improved to 14.48% in 2026 from 10.43% in 2025, supported by robust orders and product expansion.
Outlook remains positive with an 80% analyst buy rating and consensus price target of $127.50, implying significant upside. Risks include high P/E of 37.7, negative operating cash flow, and semiconductor cycle volatility. Growth catalysts are new wet processing platforms and overseas expansion, but execution on guidance is critical.
Five9 (FIVN) trades at $31.14, down 9.69% today but remains near its 52-week highs. The stock shows strong technical momentum with bullish moving averages and has consistently beaten earnings estimates in recent quarters. Revenue growth accelerated to 10% in Q2 2026, reaching $312.4 million, while the company maintains a solid gross margin of 54.91%. Recent management appointments and AI-driven subscription growth provide positive catalysts.
The outlook remains positive with 61% analyst buy ratings and a $32.67 consensus target offering 5% upside. However, elevated valuation multiples (P/E 47.99) and ongoing fiduciary investigations pose risks. The stock's trajectory depends on continued execution of AI revenue growth and margin expansion targets.
Trailing returns across standard periods
ACM Research develops and manufactures semiconductor process equipment, specializing in wafer cleaning and electroplating solutions. Its tools are used by global chipmakers to improve productivity and yield for logic and memory chips.
Read more on ACMR →Five9 provides cloud-native contact center software that enables digital customer service, sales, and marketing engagement. The company's Virtual Contact Center platform combines core telephony functionality, omnichannel engagement capabilities, and various software modules into a unified cloud contact-center-as-a-service, or CCaaS, platform. Five9's artificial intelligence and automation portfolio supplements and enhances the firm's core CCaaS offerings, including solutions for digital self-service, agent assist technology, and workflow automation. Five9 also offers workforce optimization products that optimize call center efficiency through workforce management solutions, manage interaction quality, and track agent performance.
Read more on FIVN →