Lawsuits Allege Pentwater Capital Manipulated Avis Stock in Short Squeeze Scheme

The complaint alleges that Pentwater’s economic interest in Avis reached approximately 51% in March 2026 when its common-stock holdings and cash-settled swaps were combined—far above its reported 8.4% ownership stake as of June 30, 2025.
The alleged strategy involved not only buying Avis shares but also increasing Pentwater’s economic exposure through additional put options and call options, despite the complaint’s assertion that Avis’ fundamentals had not materially changed to justify the increased stake.
The complaint identifies Pentwater Capital Management, its general partner MCH PWCM Holdings, Inc., and Matthew C. Halbower—the CEO and president of MCH PWCM Holdings—as defendants; Avis Budget Group is named as a nonparty.
One notice describes the proposed class period as February 20, 2025, through April 21, 2026, differing from the February 20, 2026 start date cited in other notices and the summary.
Pentwater Capital Management and its CEO Matthew Halbower face a federal securities fraud lawsuit alleging they orchestrated a short squeeze at Avis Budget Group by secretly accumulating massive share positions and options, then dumping roughly 4.3 million shares for approximately $1.75 billion as the stock crashed 68% in two days. Kaplan Fox reports the alleged manipulation occurred when Avis shares surged from normal levels to a closing high of $713.97 on April 21, 2026, before plummeting to $145.75.
Investors who bought or sold Avis securities during the class period can seek recovery under federal securities laws, with the deadline to apply as lead plaintiff set for September 29, 2026. Rosen Law Firm reminds affected shareholders that allegations have not been proven in court and remain subject to legal proceedings.
The complaint alleges Pentwater's true economic interest in Avis reached approximately 51% in March 2026 when combining common stock holdings and cash-settled swaps—far exceeding its publicly reported 8.4% ownership stake as of June 30, 2025. Pomerantz LLP filed the class action in U.S. District Court for the Middle District of Florida, claiming the hedge fund concealed its growing position from the market.
Pentwater allegedly expanded exposure beyond share purchases by acquiring additional put options and call options despite Avis' fundamentals remaining stable. This strategy allowed the firm to amplify its control over Avis without disclosing proportional economic interest to shareholders and regulators.
On April 22 and 23, 2026, Pentwater dumped roughly 4.3 million Avis shares as the stock nosedived nearly 68% from its $713.97 April 21 closing peak. Kahn Swick & Foti, LLC notes that Avis shares ultimately fell to $145.75, leaving retail investors who bought at inflated prices with substantial losses.
The timing and scale of the sell-off suggest Pentwater realized approximately $1.75 billion from the dumps—a windfall the complaint asserts came from triggering a short squeeze that artificially inflated prices beyond what fundamentals justified.
Kaplan Fox & Kilsheimer LLP identified Pentwater Capital Management, its general partner MCH PWCM Holdings Inc., and Matthew C. Halbower—CEO and president of MCH PWCM Holdings—as defendants. Avis Budget Group is named as a nonparty in the litigation.
The proposed class period spans February 20, 2025 through April 21, 2026, covering all investors who bought, sold or otherwise acquired Avis securities during that window. Shareholders must apply by September 29, 2026 to become lead plaintiff and steer the case.
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