Halbert et al v. Credit Suisse AG et al

On December 17, 2018, investors filed a class action lawsuit in the Southern District of New York against Credit Suisse AG and related entities. The case centered on the collapse of the VelocityShares Daily Inverse VIX Short-Term ETNs (XIV), which lost over 90% of their value on February 5, 2018, during a historic spike in market volatility. Plaintiffs alleged that the offering documents contained materially misleading statements and omissions, failing to adequately disclose the risk that a severe market event could trigger an automatic acceleration, resulting in a near-total loss in a single day. They claimed violations of federal securities laws, asserting that the defendants marketed the complex, leveraged product as a simple hedging strategy while concealing its catastrophic downside risks. The case examined the limits of prospectus disclosures for sophisticated derivatives.

The U.S. District Court for the Southern District of New York dismissed the consolidated class action, ruling that the risks were adequately disclosed in the offering documents and that the plaintiffs failed to state a viable claim for securities fraud. This judgment was subsequently affirmed by the U.S. Court of Appeals for the Second Circuit.

The central legal issue was whether the defendants violated Sections 11, 12(a)(2), and 15 of the Securities Act of 1933 by making materially misleading statements or omissions in the registration statement and prospectus for the XIV ETNs. The dispute focused on whether the disclosures sufficiently warned investors of the specific risk of a catastrophic, overnight collapse and the mechanics of the automatic acceleration event triggered by extreme market volatility.

The case highlighted the extreme risks associated with complex, inverse-leveraged volatility-linked products, reinforcing the legal principle that detailed risk disclosures in prospectuses can protect issuers from litigation even in the event of catastrophic investor losses. It triggered broader scrutiny by retail investors and regulators regarding the suitability and transparency of Exchange-Traded Notes, contributing to the general decline in popularity of short-volatility trading strategies in public markets.