Huobi ended HUSD trading and began converting balances to USDT

Huobi Global ended HUSD trading at 08:00 UTC on October 28, 2022, stopped deposits and withdrawals, canceled open HUSD orders and began replacing customers’ on-exchange HUSD balances with Tether’s USDT at a one-for-one ratio. The exchange said it expected to finish the conversion before November 4.

The action was more consequential than an ordinary token delisting. HUSD was marketed as a dollar-backed stablecoin, so its usefulness depended on dependable redemption and liquid routes near one U.S. dollar. Huobi had been its most visible distribution venue. By removing those routes while protecting balances already inside the exchange, Huobi drew a sharp boundary between its own customers and holders using Ethereum or other venues.

What Huobi changed

Huobi announced the plan on October 27 and made it operational on October 28. The notice cited Article 11 of its token-management rules but did not give a token-specific reason for the decision. It said trading service would cease, pending orders would be canceled, and HUSD held in customer accounts would be converted to USDT.

A one-for-one account conversion was not the same as a universal redemption of HUSD. The commitment applied to balances recorded at Huobi. Once deposits stopped, an external holder could not assume that tokens in a self-custodied wallet or another venue could be moved onto Huobi for the same treatment. The notice also did not say that Tether assumed HUSD’s liabilities; USDT was the replacement asset selected by the exchange.

That scope mattered because an exchange can change its internal ledger and trading pairs without changing an ERC-20 contract or extinguishing tokens elsewhere. October 28 therefore marked the end of Huobi’s HUSD market, not verified settlement of every HUSD claim in circulation.

The issuer and exchange were not identical

The similar names obscured separate roles. A Huobi Technology filing from April 25, 2022 identified Stable Universal Limited as the issuer of the U.S. dollar-backed HUSD token. It described Huobi Trust as custodian of assets received for Stable Universal and said the trust maintained a custody account for assets backing HUSD under a 2021 agreement.

Those records established a business relationship, but not that Huobi Global itself issued each token or owed every holder a dollar. By August 2022, Huobi Global had publicly said it had exited its equity stake in Stable Universal in April. Contemporaneous coverage nevertheless continued to associate HUSD closely with the exchange because Huobi supplied its name, liquidity and customer access.

The separation is central to understanding the October 28 event: Huobi could make its exchange customers whole through an internal conversion while questions about issuer redemption, reserve custody and off-exchange holders remained outside that announcement.

Why the cutoff mattered

HUSD had already shown stress before the final delisting. Huobi removed 21 HUSD trading pairs on October 10, and contemporaneous reporting documented a break from the intended dollar parity on October 11. The October 28 shutdown eliminated the remaining Huobi trading service instead of demonstrating that open-market confidence had recovered.

No event-day price, market capitalization or percentage move is asserted here. Surviving aggregators report materially inconsistent October 28 HUSD observations, with differing venue coverage, daily cutoffs and thin-liquidity effects. Those records cannot support a single authoritative close for a continuously traded token.

Institutionally, the episode showed how a centralized stablecoin can depend on several organizations at once: an issuer, reserve custodian, exchange, banking access and secondary-market venues. Removing one major gateway can leave identical-looking tokens with different practical exit routes depending on where they are held.

Later clarification

On October 29, Huobi said Stable Universal issued and operated HUSD, repeated that Huobi-related entities had exited their equity interest in April, and confirmed that the October 28 conversion covered Huobi users. It directed holders of assets on other networks to the issuer or relevant project teams. That later statement clarified the boundary already implicit in the October 28 notice; it did not establish that every external holder had a functioning one-for-one redemption channel.