OKX, reviewed

Reviewing OKX is really reviewing several exchanges that share a logo. There is the global venue — one of the deepest product shelves in the industry, with a genuine options book almost no rival matches. There is the EU version, operating under a MiCA authorisation the company obtained through Malta, per its announcements. There is the US version, launched in 2025 with a shorter menu and a longer backstory. Which one you get depends entirely on your passport and your IP address, and the differences are not cosmetic. The engine deserves the respect; the patchwork deserves the scrutiny. This review does both.

The file

The shelf, and who is allowed to browse it

At full width, the catalogue is the argument: hundreds of spot pairs, margin, perpetual swaps, dated futures, and listed options — the last being the rarity, since most retail-facing venues never build a real options book at all. The unified trading account ties it together, letting collateral and margin work across products rather than in silos. For a practiced derivatives trader this is the good stuff: one balance, cross-margined, with portfolio-margin modes at the higher tiers, per the company’s documentation.

Now the patchwork. Retail derivatives access is fenced off in a long list of jurisdictions — UK retail restrictions being the obvious example — and the US platform launched with spot and a deliberately conservative feature set. The practical effect: two traders reading the same OKX review may be describing products neither of them can open. We flag this because the marketing does not. Check what the venue will actually sell you in your jurisdiction before forming any opinion, and treat that check as part of the do-your-own-research discipline these assets demand anyway — high-risk instruments do not become safer because the interface is polished.

Fees, read from the schedule

The published spot schedule undercuts the US incumbents by a wide margin: entry-tier rates sit under a tenth of a percent as of this writing, stepping down with volume and, in the company’s tiering, with holdings of its own exchange token. That last clause is worth a pause. Fee ladders keyed partly to holding the venue’s proprietary token are common offshore and are still a soft conflict: the discount recruits your balance sheet into the exchange’s ecosystem. The rates are genuinely competitive without the token; take the plain ladder and keep the entanglement at zero.

Derivatives fees run on their own schedules, lower still at the maker side, per the published tables. As always on this desk: the schedule is the venue’s publication, it changes, and the copy you should trust is the one on the site the day you trade. Print it, date it, and compare it to your statement at month end — the gap between the two is the only fee review that matters.

What happens when things break

The custody story is the mirror image of a public-company rival’s. OKX publishes monthly Merkle-tree proof-of-reserves for its major assets — one of the more consistent publication records since the practice began in late 2022, per the company — and reserve snapshots are better than silence. But the operator is a private group spanning multiple entities and jurisdictions, so the liability side, the corporate structure, and the insolvency treatment of customer assets rest on the company’s own statements rather than on public filings. An attestation is not an audit; a snapshot is not a balance sheet.

The record also includes the hard entry in the ledger: in February 2025, per the US Department of Justice, an OKX operating entity pleaded guilty to operating an unlicensed money-transmitting business in the US and agreed to penalties and forfeiture totalling roughly half a billion dollars. The company framed the resolution as closing a legacy chapter, and the compliant US launch that followed is consistent with that framing. We note both the plea and the rebuild. A mechanic does not pretend the engine never seized; a fair one also notes it was rebuilt under supervision.

Support runs through chat and tickets with the industry-standard mix of speed on easy questions and friction on hard ones; account-recovery and withdrawal-review waits are recurring themes in public complaints, as they are at most large venues. As of this writing we see nothing that distinguishes OKX from its peers here in either direction — which is itself a finding, given how much its fee schedule distinguishes it.

The two columns

Verdict

OKX is what happens when a venue builds the machine first and the paperwork second, then spends years buying the paperwork back at settlement prices. The machine is excellent. The reserve snapshots are regular. The MiCA and US chapters suggest the direction of travel is the right one. But structure is destiny in an insolvency, and until the liability side of this venue is as visible as its order books, the schedule discount is not free — it is compensation. Price it that way.