Amphastar Pharmaceuticals Inc vs Five9 Inc — how do they compare? Amphastar Pharmaceuticals Inc trades at $20.04 (market cap $868.62M), while Five9 Inc trades at $31.22 (market cap $2.44B). The key difference: Five9 Inc is far larger — about 2.8× Amphastar Pharmaceuticals Inc's market cap, and Five9 Inc is trading nearer its 52-week high, Amphastar Pharmaceuticals Inc nearer its low. Which is the better fit depends on your goals.
| AMPH | FIVN | |
|---|---|---|
Market Cap | $868.62M | $2.44B |
Sector | Health | Technology |
52-Week High | $30.81 | $34.48 |
52-Week Low | $16.87 | $13.61 |
Enterprise Value | $1.27B | $2.59B |
Signals from Pluang's Aura AI — not financial advice
AMPH trades at $19.98, down 1.62% today, with a bullish technical signal supported by moving averages. The company reported mixed Q2 2026 results, beating EPS estimates with $0.91 versus $0.62 expected, but revenue growth remains modest. Valuation ratios appear reasonable with P/E of 12.08 and P/S of 1.3, while profitability metrics show a net income margin of 10.76% and ROE of 10.3%.
The outlook is balanced with analyst consensus leaning Hold (66.67%) amid regulatory scrutiny and competitive pressures. Near-term catalysts include pipeline developments, but risks from FDA warnings and generic drug tariff uncertainties warrant caution. Cash flow trends improved with 2026 net cash flow projected at $36 million.
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
Amphastar is a specialty pharmaceutical company that develops and markets injectable, intranasal, and inhalation products. Its portfolio includes both complex generic drugs and proprietary delivery systems.
Read more on AMPH →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 →