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Compare Amphastar Pharmaceuticals Inc (AMPH) vs Quanta Services Inc (PWR) Price & Performance

Amphastar Pharmaceuticals Inc
Quanta Services Inc

Price performance

Price movement over the last 24 hours

Key statistics

Amphastar Pharmaceuticals Inc vs Quanta Services Inc — how do they compare? Amphastar Pharmaceuticals Inc trades at $18.72 (market cap $826.08M), while Quanta Services Inc trades at $647.43 (market cap $98.82B). The key difference: Quanta Services Inc is far larger — about 119.6× Amphastar Pharmaceuticals Inc's market cap, and Quanta Services Inc pays a 0.07% dividend while Amphastar Pharmaceuticals Inc pays none. Which is the better fit depends on your goals.

AMPHPWR
Market Cap
$826.08M$98.82B
Sector
HealthIndustrials
52-Week High
$30.81$785.24
52-Week Low
$16.87$372.50
Enterprise Value
$1.22B$104.78B
Dividend Yield
0.07%

Aura AI Summary

Signals from Pluang's Aura AI — not financial advice

Amphastar Pharmaceuticals Inc

AMPH trades at $18.72, down 1.58% with bearish technical signals despite oversold RSI readings. The company reported mixed Q1 2026 results with EPS of $0.42 missing estimates of $0.70, continuing a trend of recent earnings disappointments. Valuation metrics appear reasonable with P/E of 11.29 and P/B of 1.07, while profitability remains solid with 47.34% gross margins. Recent news includes a Zacks Strong Sell rating and ongoing securities law investigation.

The stock faces near-term headwinds from earnings misses and negative analyst sentiment, though current valuations provide some downside protection. Upside potential exists if the company can execute its strategic pivot to proprietary drugs and biosimilars while managing BAQSIMI discount pressures. Key risks include ongoing legal scrutiny and competitive pressures in the generic drug market.

Quanta Services Inc

Quanta Services (PWR) trades at $658.56, down 1.44% with a bearish technical signal despite strong fundamental performance. The company has consistently beaten earnings estimates for three consecutive quarters, with Q2 2026 results pending. Revenue growth has been robust, increasing from $17.1B in 2022 to $28.5B in 2025, though profit margins remain modest at 3.67%. Analyst sentiment remains overwhelmingly positive with 27 buy ratings and a consensus price target of $836.80, representing 27% upside potential.

PWR presents a compelling growth story driven by infrastructure spending and AI-related opportunities, with management projecting technology revenues to rise over 110% by 2030. However, the stock trades at premium valuations (P/E 90.34) and faces execution risks from aggressive capital expenditure plans. The bearish technical setup suggests near-term pressure, but strong institutional support and massive infrastructure backlog provide long-term catalysts.

Returns comparison

Trailing returns across standard periods

Top news

Latest headlines on both assets

About Amphastar Pharmaceuticals Inc

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

About Quanta Services Inc

Quanta Services is a leading provider of specialty contracting services, delivering comprehensive infrastructure solutions for the electric and gas utility, communications, pipeline, and energy industries in the United States, Canada, and Australia. Quanta reports its results under two reportable segments: electric power infrastructure solutions and underground utility and infrastructure solutions. In October 2021, the company completed the acquisition of Blattner, a provider of comprehensive engineering, procurement, and construction solutions to customers in the renewable energy industry.

Read more on PWR