Decentralized finance yield platform Stablegains has been sued in a Californian court for allegedly misleading investors and failing to comply with securities laws.

On Feb. 18, plaintiffs Alec and Artin Ohanian filed a complaint in the U.S. District Court for the central district of California, alleging that the shutteredDeFi platform diverted all of its customer funds to the Anchor Protocol without their knowledge or consent.

Anchor Protocol offered yields of up to 20% on the Terraform Labs algorithmic stablecoin, Terra USD (UST).

“As an early supporter of and investor in TFL [Terraform Labs], Stablegains is intimately familiar with UST and LUNA. In fact, Stablegains, Inc. falsely advertised UST as a safe investment.”

Stablegains offered a 15% gain for its customers, pocketing the difference from yields offered by Anchor Protocol.

The plaintiffs also allege that UST was a security and that Stablegains broke federal securities laws:

“Stablegains plainly failed to comply with federal and state securities laws. Stablegains failed to disclose that UST is in fact a security.”

The complaint added that the firm failed to register with the U.S. Securities and Exchange Commission either as a securities exchange or as a broker-dealer.

The Ohanians stated that there were “disastrous consequences for Stablegains’ customers,” following the collapse of the UST ecosystem in May. UST de-pegged from the dollar, causing a broader run on DeFi and crypto markets in May and an eventual loss of around $18 billion from the Terra/Luna ecosystem.

Following the collapse, Stablegains allegedly altered its website and promotional material touting UST as “safe” and “fiat-backed,” effectively conceding that UST was none of those things, the complaint stated.

Instead of liquidating assets and returning funds to customers, Stablegains “retained the majority of the devalued assets deposited by its users, unilaterally opting to redirect them into Terra 2.0,” it added.

Stablegains, which launched in August 2021, shut down on May 22. It discontinued its services, apps and support for Anchor Protocol, requesting that users withdraw their funds. As reported by CoinStreetDaily, Stablegains was hit with a similar lawsuit at the time.

Related: SEC sues Do Kwon and Terraform Labs for fraud

The specific amount sought in damages was not detailed, however, the plaintiffs did demand a trial.

On Feb. 16, the SEC filed a lawsuit against Terraform Labs and its founder, Do Kwon, for allegedly “orchestrating a multi-billion dollar crypto asset securities fraud.”