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Why It Moves

Why Is PacBio (PACB) Stock Soaring Today

Shares of genomics company Pacific Biosciences of California (NASDAQ:PACB) jumped 6.1% in the afternoon session after Cathie Wood's investment firm, ARK Invest, purchased a substantial number of its shares. The firm's transaction reports showed the acquisition of 423,426 shares of Pacific Biosciences of California for approximately $724,058. This move was part of a series of end-of-year portfolio adjustments by ARK Invest. The purchases indicated a strategic tilt toward the biotechnology sector as the firm increased its holdings in several biotech companies.

Dec 31, 2025
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Why It Moves

Why FuelCell Energy (FCEL) Stock Is Trading Lower Today

Shares of carbonate fuel cell technology developer FuelCell Energy (NASDAQ:FCEL) fell 9.8% in the afternoon session after the company filed for a common stock offering of up to $200 million. 

Dec 31, 2025
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Why It Moves

Why Corcept (CORT) Shares Are Falling Today

Shares of biopharma company Corcept Therapeutics (NASDAQ:CORT) fell 51.4% in the afternoon session after the U.S. Food and Drug Administration (FDA) issued a Complete Response Letter (CRL) rejecting the company's New Drug Application for relacorilant. 

Dec 31, 2025
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