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Why Big Stock Swings Like Medpace's 55% Jump Usually Have Clear Causes--Not Market Madness

The Motley Fool·02/16/2026 18:50:00
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Key Points

  • Large, sudden stock price swings—like Medpace’s recent spike and drop—are often driven by identifiable factors such as short squeezes or concentrated trading, not pure randomness.

  • Investors should distinguish between moves based on verifiable corporate developments and those fueled by momentum or retail trading, as each carries different risks and implications for long-term value.

Discover what drives dramatic price swings in stocks like Medpace (NASDAQ: MEDP) and how market mechanics, not just news, can shape outcomes. Watch the video below to learn how investors can navigate these volatile moves.

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Jason Hall has no position in any of the stocks mentioned. Lou Whiteman has no position in any of the stocks mentioned. Toby Bordelon has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Medpace. The Motley Fool has a disclosure policy.