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Why Amgen stock dropped yesterday

By Wealth Awesome -
Stocks & ETFs:AMGN.US

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Amgen's stock took a significant hit following disappointing news from a competitor's clinical trial.

Amgen Inc. (NASDAQ:AMGN) saw its stock price drop by 1.34% yesterday, closing at CA$377.35. This decline was largely due to negative developments in a competitor's drug trial, raising concerns about Amgen's own pipeline.

Investor takeaway: Investors should stay cautious, as recent setbacks for competing therapies may affect Amgen's future prospects, especially in the cardiovascular space.

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Amgen's market cap now stands at CA$204 billion.

This market cap reflects a significant valuation drop as investors reassess the company's growth trajectory in light of recent setbacks.

Bull case

Amgen's diverse portfolio, which includes successful products like Repatha, offers some protection against risks linked to its Lp(a) lowering therapies.

Bear case

The failure of Novartis' pelacarsen trial has raised doubts about the effectiveness of Amgen's olpasiran, potentially threatening its market position and leading to further stock declines.

Impact of Novartis' Trial Failure

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Amgen's decline was mainly triggered by Novartis' announcement that its pelacarsen drug failed to meet its primary endpoint in a critical cardiovascular outcomes trial. This news alarmed investors, as Amgen's olpasiran operates on a similar mechanism. The market reacted quickly, causing a significant drop in Amgen's stock price as investors reevaluated the viability of its Lp(a) lowering therapies.

Market Reactions and Analyst Downgrades

Following the news, several analysts downgraded Amgen's stock, reflecting concerns over its future growth prospects. BMO Capital Markets lowered its rating to Market Perform, citing increased risks associated with Amgen's pipeline. This downgrade, along with the broader market's reaction to pressures in the healthcare sector, contributed to the stock's downward trend.

Looking Ahead: Investor Sentiment

As Amgen faces these challenges, investor sentiment remains cautious. While the company's strong existing product portfolio may offer some stability, uncertainty surrounding its Lp(a) therapies could lead to more volatility. Investors are advised to keep an eye on upcoming trial results and market developments that could impact Amgen's performance in the near future.

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Wealth Awesome
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Wealth Awesome

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Published: September 14, 2026
Last Updated: September 14, 2026
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