OKX’s Star Xu and Binance’s CZ revive 2015 OKCoin dispute in public X clash

OKX founder Star Xu reignited a decade-old feud with Binance founder Changpeng “CZ” Zhao on X on April 10, calling Zhao a “habitual liar” while revisiting allegations tied to Zhao’s 2015 OKCoin tenure. The exchange quickly escalated from contract-history claims into personal questions about Zhao’s divorce and whether any Binance stake was legally separated.

Key Takeaways

• OKX founder Star Xu attacked Binance founder Changpeng “CZ” Zhao on X, reviving allegations tied to Zhao’s 2015 OKCoin tenure and a contract dispute involving Roger Ver.
• Zhao’s memoir, published earlier in the week of April 10, 2026, was cited by Xu as the trigger for reopening the dispute publicly.
• Xu pointed to a video he said shows conflicting contract versions, though the implications of that footage are not independently established in the public thread.
• The argument spilled into personal territory after Xu questioned Zhao’s marital disclosures, prompting Zhao to say he is “officially divorced” and propose a $1 billion wager that lawyers could verify.

Star Xu and CZ Reignite the OKCoin-Era Contract Dispute on X

A long-running founder-level feud between OKX’s Star Xu and Binance’s Changpeng “CZ” Zhao resurfaced on X on Thursday, April 10, with Xu calling Zhao a “habitual liar” and re-litigating allegations tied to Zhao’s brief 2015 stint at OKCoin.

The revived claims center on a contract dispute involving Roger Ver and accusations dating back to 2015 that Zhao engaged in “harmful acts of conduct” and made misleading statements. Zhao has previously disputed those allegations.

For traders, the immediate relevance is not the decade-old history itself. It is the fact that the two largest exchange brands are again generating reputational-risk headlines in public, with neither side presenting a clean, independently verifiable package of evidence inside the thread.

Memoir as the Catalyst: Why the 2015 Allegations Resurfaced This Week

Xu framed Zhao’s newly published memoir as the narrative trigger for the flare-up, writing that he had no “intention of revisiting these old issues” but felt pulled back in by the book and wanted to “restate the facts.” That matters because it suggests the current cycle is being driven by a fresh narrative catalyst rather than new, externally validated information about what happened in 2015.

Zhao’s memoir recounts the origin of the dispute as a sudden accusation from Xu. “Out of the blue, Star [Xu] said that I had somehow forged a contract when working there [at OKCoin],” Zhao wrote. He also described making a public denial in 2015: “... In May 2015, I got annoyed and made a public post on Reddit, obviously denying forging any contracts … while I was at it, I detailed a few problems I saw at OKCoin.”

The public back-and-forth also lands after a separate January 2026 clash, when Xu blamed Binance-linked market dynamics for amplifying the Oct. 10 crypto crash, a claim Binance and other market participants disputed. The pattern is familiar: founder-to-founder disputes that can persist as headline risk even when the underlying facts remain contested.

From Contract Versions to Divorce Proof: How the Fight Escalated

Xu’s renewed push leaned on a video he said shows conflicting contract versions, arguing Zhao misled the public about the contract dispute. Xu wrote, “After spending four months in prison, he continues to make false statements to the world,” adding that “a habitual liar never changes their nature.”

The fight then moved from business-history allegations into personal and governance-adjacent questions. Xu questioned whether Zhao had misrepresented his marital status and said he would apologize if Zhao could produce a divorce agreement signed by both parties.

Zhao replied that he is “officially divorced” and proposed a $1 billion bet, or any amount Xu chose, that the divorce had been finalized. Zhao said lawyers could verify the agreement while he declined to publish documents.

Xu rejected the wager, citing compliance considerations tied to operating a regulated exchange, and pressed on a more consequential angle for exchange-watchers: whether Zhao’s Binance stake had been legally separated as part of any divorce. Zhao dismissed the inquiry, saying his Binance stake was “none of your business,” and accused Xu of deflecting.

What Traders Can and Can’t Verify From the Public Record So Far

The public record in the thread is heavy on claims and light on verification. The video Xu cited is presented as evidence of conflicting contract versions, but its contents and implications are not independently confirmed in the material available. The underlying 2015 allegations remain disputed, with Zhao reiterating denials and Xu reiterating accusations.

The divorce-status escalation is similar. Zhao’s “officially divorced” statement came with an offer of lawyer verification but no public documentation, while Xu’s stake-separation line of questioning went unanswered.

The next inflection points are straightforward. Any follow-up posts that include verifiable documentation, such as contract versions, third-party attestations, or lawyer-confirmed statements, would change the information quality of the story. Traders will also want to see whether either exchange issues a corporate statement that explicitly walls off operations and compliance from founder-level disputes. If the headline cycle starts to bite, second-order signals would show up first in behavior, not tweets: unusual OKX/Binance netflows and abrupt changes in perpetual funding or open interest around the feud.

How I'm Reading CZ and OKX founder feud reignites

I treat this as a sentiment catalyst, not a fundamental shift, until something verifiable lands. The memoir angle is the tell. It explains why the story is back without requiring that any new evidence has emerged, and it keeps the dispute alive because it is now about credibility and personal disclosures, not just a 2015 contract narrative.

The threshold that matters is whether either side produces documentation that can be checked without trusting the poster, or whether the exchanges are forced into formal statements to contain reputational spillover. If neither happens, the practical impact is limited to short-lived headline volatility. If it does, the setup starts to look structural rather than narrative-driven because it pulls governance and counterparty perception into the trade.

Sources

• CoinDesk