OKB (OKB)

OKB (ticker: OKB) is the utility token of the OKX exchange ecosystem, issued by the OKX group (formerly OKEx) beginning in 2018.¹² The token grants holders reduced trading fees, access to token sales on the exchange's launchpad, and various loyalty and ecosystem benefits; it also serves as the gas token of X Layer, OKX's Ethereum layer-2 network.³⁴ For most of its history, OKB followed the pattern common to exchange tokens by combining these fee-discount utilities with a periodic buyback-and-burn program funded by a share of the exchange's trading revenue.⁴⁵ In August 2025, however, OKX carried out one of the most drastic supply reductions in the industry's history, cutting the token's total supply from 300 million to a permanently fixed 21 million and disabling the ability to mint new tokens, a move widely described as burning roughly 279 million OKB worth about $26 billion at spot prices.⁶⁷⁸ The announcement sent OKB from roughly $47 to a record high near $257 within days, though the token subsequently gave back much of that gain, trading around $107–$110 with a market capitalisation near $2.3 billion through much of 2026.⁹¹¹⁰

Overview

Ticker	OKB
Category	Exchange-based Tokens
Website	https://www.okx.com/okb
Twitter	@okx
Telegram	OKXOfficial_English
Reddit	https://www.reddit.com/r/OKX/
Contract Addresses
ethereum	0x75...6cCopied!
okex-chain	0xdf...c2Copied!
sora	0x00...e9Copied!

OKB functions as the central utility and loyalty asset across OKX's exchange and on-chain products. Holding the token entitles users to discounts on spot and derivatives trading fees, priority or allocation in token sales conducted through the exchange's Jumpstart launchpad, and assorted rewards and ecosystem privileges; following the 2025 restructuring, OKB is also positioned as the sole gas token for transactions on X Layer.³⁴⁵ In these respects, OKB has long been comparable to other major exchange-issued tokens such as Binance's BNB or the earlier Huobi Token, whose value is tied to the commercial fortunes and fee revenue of a single large centralised exchange.¹¹⁴

What most distinguishes OKB is the scale and abruptness of the supply engineering applied to it in 2025. Rather than continuing an incremental quarterly burn, OKX collapsed the token's headline supply to 21 million in a single event, deliberately echoing the fixed cap of Bitcoin, and removed the smart-contract functions that had allowed new tokens to be minted or manually burned.⁷⁸⁶ The change transformed OKB's supply narrative from that of a gradually deflationary fee token into that of a hard-capped, fully circulating asset, drawing attention to a longstanding feature of many exchange tokens where the reported total supply had greatly exceeded the amount ever actually issued or circulating.⁶¹²

History

Origins and the OKEx era (2017–2020)

OK Group, the corporate parent behind the OKB token, was founded in 2013 by the Chinese entrepreneur Mingxing "Star" Xu, and its exchange arm launched as OKEx in 2017.²¹¹ OKB was introduced in 2018 as an ERC-20 token on Ethereum, distributed to the exchange's users as a loyalty and utility asset; its original total supply was set at 1 billion tokens.¹¹³¹⁴ In its early years, OKB served primarily as a fee-discount token and a vehicle for participation in the exchange's token-sale and rewards programs, following the template established by other exchange coins of the period.⁴

On 4 May 2019, OKEx introduced a formal buyback-and-burn program for OKB, committing to use approximately 30% of the spot-market trading fees collected by the exchange to repurchase OKB on the open market and destroy the tokens on-chain, with burns conducted on a roughly quarterly basis.⁴⁵ The following year, in a separate step, the exchange burned 700 million unissued OKB, reducing the token's total supply from 1 billion to 300 million, a figure that would stand until the 2025 restructuring.²¹³

The 2020 withdrawal suspension

In October 2020, OKEx became the subject of one of the more serious operational crises to affect a major exchange up to that point. On 16 October 2020, the exchange suspended cryptocurrency withdrawals, explaining that one of its private-key holders was "out of touch" and unavailable to authorise transactions.¹⁵¹⁶ It emerged that the individual concerned was founder Star Xu, who had been taken in by Chinese police to assist with an investigation reported to relate to an equity matter involving OK Group.¹⁵¹⁷ Withdrawals remained frozen for several weeks, an episode that weighed on OKB and on confidence in the platform, before the exchange announced in November 2020 that the key holder had returned to normal duties and that withdrawals would resume.¹⁵ The incident was widely cited as illustrating the concentration and jurisdictional risks facing centralised exchanges operating from or connected to China.¹⁷

Rebranding to OKX (2022)

On 18 January 2022, the exchange rebranded from OKEx to OKX, presenting the change as reflecting an expansion beyond a conventional spot-and-derivatives exchange toward a broader ecosystem encompassing Web3 services, a self-custody wallet, and on-chain infrastructure.¹¹² OKB was carried forward as the ecosystem's native token through the rebrand, and the exchange continued its periodic buyback-and-burn program over the following years.⁴⁵

The August 2025 tokenomics overhaul

In August 2025, OKX announced a fundamental restructuring of OKB's tokenomics that ranks among the largest supply reductions in cryptocurrency history. On 15 August 2025, the exchange permanently reduced OKB's total supply from 300 million to 21 million tokens, a cut widely reported as the burning of 278,999,999 OKB worth more than $26 billion at prevailing spot prices.⁶⁷ The reduction was accompanied by an update to the OKB smart contract that eliminated both the minting function and the ability to conduct manual burns, thereby fixing the supply at 21 million and ending the quarterly buyback-and-burn model that had run since 2019.⁶⁸

The precise mechanics behind the headline figure are worth distinguishing, and press coverage has often blurred them. Of the roughly 279-million-token reduction in stated supply, the tokens actually destroyed from the company's holdings numbered approximately 65.26 million, comprising OKB accumulated through past buyback programs and held in reserve; the remainder of the reduction came from permanently removing supply that had never been issued into circulation and disabling the capacity to mint it.⁷⁸ In other words, the "$26 billion burn" headline valued the entire nominal supply reduction at the market price, whereas the quantity of previously existing tokens taken out of reserves was considerably smaller. Commentators noted that the episode highlighted how far the reported total supply of many tokens can exceed their true circulating float, and Flashbots strategy lead Hasu remarked that the case was another proof that the market still overestimates the true float of many tokens.⁶

The overhaul was presented alongside an upgrade to X Layer, OKX's Ethereum layer-2 network, with OKB framed as the network's sole gas token, and the exchange positioned the fixed 21-million cap as aligning OKB with the scarcity model of Bitcoin.⁸⁹¹⁸ The announcement produced a sharp rally, with OKB surging from roughly $47 to well above $120 within a day, a 24-hour gain of around 160 to 172%, and going on to set an all-time high near $257 on 22 August 2025.⁹¹¹⁰

Discontinuation of OKTChain / OKC (2025 to 2026)

As part of the same restructuring, OKX announced the wind-down of its earlier proprietary blockchain, variously known as OKChain, OKC, or OKTChain, and its associated native token OKT.⁶⁷ The chain was scheduled to cease operations on 1 January 2026, and holders of OKT were offered conversion into OKB at an exchange rate based on the average closing prices of the two assets over the period from 13 July to 12 August 2025.⁶ The move consolidated OKX's on-chain strategy around X Layer and around OKB as its single ecosystem token, retiring the earlier chain.⁷

Technical design and tokenomics

OKB was launched as a standard ERC-20 token on Ethereum, deployed at contract address 0x75231F58b43240C9718Dd58B4967c5114342a86c, and it continues to exist principally as an Ethereum-based asset while also serving as the gas token of X Layer.¹⁴³ X Layer is described by OKX as an Ethereum layer-2 network intended to support scalable, low-cost transactions, with OKB used to pay network fees.⁴⁸

From May 2019 until the 2025 overhaul, OKB's supply was governed by a buyback-and-burn program under which OKX committed roughly 30% of its spot trading-fee revenue to repurchasing OKB from the open market and burning it on-chain, on a broadly quarterly cadence.⁴⁵ The original supply of 1 billion tokens was reduced to 300 million in 2020 through the destruction of unissued tokens, and the quarterly program gradually retired additional supply thereafter.²¹³

Since August 2025, the tokenomics have been comparatively simple, with the total supply fixed at 21 million tokens, the minting function disabled at the contract level, and data providers reporting the circulating supply as effectively equal to the total supply, meaning close to 100% of OKB is in circulation.¹¹⁰³ This structure removes the ongoing, revenue-linked deflation that had previously characterised the token and replaces it with a static hard cap, so that OKB's supply no longer varies with the exchange's trading volumes.⁸⁵

Market history

For most of its existence, OKB traded as a mid-tier exchange token, rising from around $40 in early 2024 to above $50 by mid-2025 as the broader market recovered.¹⁹¹ Its defining market event was the August 2025 tokenomics overhaul, which triggered a near-tripling of the price within days and carried OKB to an all-time high in the region of $257 to $259 on 22 August 2025, depending on the data provider.¹¹⁰¹⁹

The token did not sustain that peak. Through 2026, OKB traded well below its high, with data providers recording prices in the range of roughly $107 to $110 and a market capitalisation near $2.3 billion in the second half of 2026, placing the token in the vicinity of 35th to 40th among cryptocurrencies by that measure.¹¹⁰ Because the entire supply of 21 million tokens is treated as circulating, OKB's fully diluted valuation and its market capitalisation are effectively identical, in contrast to the earlier period when a large nominal total supply sat above a much smaller circulating float.¹¹² Prior to the 2025 change, analysts had at times questioned OKB's reported market-capitalisation rankings precisely because of the wide gap between its stated total supply and the amount genuinely in circulation.¹²

Distinguishing features

The single most distinctive aspect of OKB is the 2025 decision to collapse its supply to a fixed 21 million tokens and disable minting, deliberately mirroring Bitcoin's hard cap. This is an unusually aggressive form of supply management for an exchange token, most of which retain either a large fixed float or an open-ended, revenue-linked burn program rather than a one-off contraction to a small permanent cap.⁷⁸⁵

The episode is also frequently cited as a case study in the divergence between reported total supply and true circulating float in cryptocurrency markets. Because the headline "$26 billion burn" valued a nominal supply reduction, much of which had never circulated, at the full market price, the event prompted renewed commentary about how token supply figures are presented and interpreted.⁶¹² Finally, OKB's dual role, as both a fee-discount and loyalty token on a large centralised exchange and the designated gas token of an associated layer-2 network, situates it among exchange tokens that have sought to extend their utility into on-chain infrastructure.⁴⁸

Criticism and risks

Centralised control over supply. The 2025 overhaul demonstrated that OKX retains unilateral control over OKB's fundamental economics. A single corporate decision reduced the headline supply by roughly 93% and re-based the token's entire scarcity narrative, and the same discretionary authority that fixed the cap had previously governed the buyback program. Holders are therefore exposed to the issuer's decisions rather than to a decentralised or immutable monetary policy, notwithstanding the Bitcoin comparison invoked at launch.⁸⁶

Supply-figure presentation. The manner in which the burn was reported, valuing a largely un-issued nominal supply reduction at spot prices to reach a "$26 billion" figure, drew criticism for overstating the economic substance of the event, and it underscored broader concerns about how total-supply and float figures are disclosed for exchange tokens.⁶¹²

Dependence on a single exchange. As with other exchange-issued tokens, OKB's utility and value remain closely tied to the commercial health, trading volumes, and regulatory standing of one centralised exchange. Adverse developments affecting OKX would be expected to bear directly on the token.⁴¹¹

Regulatory and operational history. OKX and its predecessor OKEx have a history that includes the October 2020 withdrawal freeze connected to founder Star Xu's questioning by Chinese authorities, an episode that froze customer withdrawals for weeks and highlighted the concentration and jurisdictional risks associated with the platform.¹⁵¹⁷ Prospective holders of OKB bear indirect exposure to such operational and regulatory risks at the exchange level.

Post-cap demand uncertainty. With the deflationary quarterly burn discontinued, OKB's future value is more dependent on genuine demand for its remaining utilities, including gas usage on X Layer and fee discounts on OKX, than on a mechanical, revenue-funded reduction in supply. The substantial retracement from the August 2025 high illustrates that a fixed cap alone does not guarantee sustained price support.¹¹⁰⁵

References