⚠︎ Risk warning: leveraged derivatives on unregulated platforms — you can lose everything you deposit. Not investment advice.

Review · By Stephan Kulik · Updated 2026-09-25

SoDEX Review 2026: On-Chain Order Book, Custodied Deposits

Facts verified against SoDEX's documentation, both Terms of Use it links, its public perps API and DefiLlama on 2026-09-24. Where the docs disagree with each other or with the API, this page shows both rather than choosing.

What SoDEX is

"SoDEX is a high-performance order book decentralized exchange (DEX)" built by SoSoValue on ValueChain, its own layer-1. ValueChain hosts separate application chains — "a spot order-book appchain powering SoDEX Spot" and "a perpetual order-book appchain powering SoDEX Perpetuals" — plus an EVM system chain that serves as the shared account layer. SOSO "works as the native token and gas currency of the ValueChain blockchain", and holders can stake it to become validators. The Terms of Use inside the SoDEX docs (last modified 21 October 2025) are with Finova Holdings Limited, governed by Cayman Islands law, and describe the company as the provider of the interface only, which "does not own, control, or operate Sodex" and "has no involvement in the execution of transactions". The "Terms of Service" link in the sodex.com footer leads somewhere else: SoSoValue's Terms with Digvaluable Ltd. under British Virgin Islands law, which by their own opening sentence govern "the website located at https://ssi.sosovalue.com/", not SoDEX. Neither document claims a licence. The docs list audits of the Mirror Protocol by BlockSec, Halborn, Quantstamp and TenAmor and of the vault protocol by three of the same firms, with reports "available upon request".

The custody question

Deposits do not settle into a smart contract you control. You send an asset to a deposit address; "the Mirror Protocol, an independent third-party provider" detects it and mints an equivalent ValueChain token — "a deposit of 1 BTC triggers the Mirror Protocol to mint and deposit 1 vBTC" — into your Spot account. The custody page is direct about what backs it: "All user assets deposited into SoDEX are held in segregated custody accounts managed by institutional custody providers", with Cobo, Ceffu and Coinbase named. Mint and burn are validated by an "MPC + TEE-based validator architecture". Your keys therefore control the mirrored balance and the positions built on it; the underlying assets depend on the custodians and on the Mirror Protocol's validators behaving as documented. Every deposit is also screened by KYT and every withdrawal by KYA, and the deposit guide says tainted funds are rejected and returned. This is a different trust model from venues that settle in a user-owned contract, and this site's risk disclosure applies in full.

Markets: 91 perps, with stocks and metals

SoDEX's public perps endpoint returned 98 symbols on 2026-09-24: 91 trading and 7 halted, all quoted in vUSDC, the mirrored USDC. Alongside the crypto majors and memecoins it lists single stocks (Apple, Nvidia, Tesla, Microsoft, Meta, Coinbase, Strategy and others), index trackers named US500 and USTECH100, tokenised gold (XAUT), silver, copper and crude. Contracts are "USDC-margined, USDT-denominated" linear perps: the price feed is in USDT and profit is paid in USDC with "no currency conversion", a quanto structure the docs name. Cross and isolated margin are both available. The API's own maximum leverage is 40x on BTC and ETH, 25x on two markets, 20x on seven, and 10x, 5x or 3x on the rest — note that the docs' Margin Tiers page lists ETH at 25x where the API says 40x. SoDEX's 91 trading markets are in this site's market coverage join, each with the leverage the API publishes.

Fees at a glance

Perps fees follow seven tiers on "14D weighted volume", where spot volume counts double, "from March 13, 10:00 UTC": tier 0 pays 0.040% taker and 0.012% maker, tier 6 pays 0.022% and 0%. Staking SOSO takes up to 40% off, and makers with enough share of volume earn rebates down to −0.003%. Funding is paid every hour, and "the maximum funding rate is capped at 4% per hour". The fees page has the tables; the fee comparison places SoDEX beside every other venue on the table.

Margin, collateral and liquidation

Cross margin is the default and isolated margin is available. In cross margin, "Multi-Asset Margin" counts non-USDC balances at a haircut: BTC, ETH and XAUT at 90%, SOL, BNB and MAG7.ssi at 80%, DOGE, HYPE and XRP at 70%, and SOSO at 50%, with a $500,000 cap on non-USDC collateral checked at deposit. Maintenance margin is half the initial margin at the position's tier. Liquidation runs in stages: the position is first sent to the public order book with "no additional liquidation fee", in 20% slices with a 30-second cooldown above 100,000 USDC; if equity falls below two-thirds of maintenance margin it moves to a backstop, which keeps the maintenance margin; and in extreme cases auto-deleveraging reduces opposing positions, under the rule that "users with no open positions will not bear any platform losses". The docs name no insurance fund.

Token, staking and points

SOSO is live and is the ValueChain gas token. Staking it — handled for now on SoSoValue's SSI Earn page, not on SoDEX — cuts trading fees by 5% at 30 SOSO up to 40% at 1,500,000 SOSO. SoPoints "will directly determine your allocation weight in the future $SOSO token airdrop". Season 1 ran from 1 February to 1 August 2026 with 1,000,000 SoPoints a week; the Layer 1 Season began on 1 September 2026 for 20 weeks, adds points for open interest and Wealth vault holdings, and stacks squad and early-bird boosts. The docs say the weighting is "fine-tuned weekly" and do not publish the formula. The airdrop tracker carries the dated row.

Size and standing

On DefiLlama's derivatives ranking read on 2026-09-24, the SoSoValue row showed $327m of normalised and $344m of reported 24-hour volume, $154m of open interest — tenth by that measure — and $4.2b of reported 30-day volume. Volume is a point-in-time reading, not a ranking to build on.

Risks

• Custodial backing. Deposits sit with third-party custodians and are mirrored on-chain by a separate protocol; a failure at either layer is outside your wallet's control.
• No operator of record. The SoDEX Terms name Finova Holdings Limited (Cayman Islands) as interface provider only, disclaiming operation of the venue; the site's footer links a different product's Terms. No licence is claimed.
• No named insurance fund. Losses beyond the backstop fall to auto-deleveraging of profitable opposing positions.
• Docs and API disagree in places. ETH leverage is 25x on the Margin Tiers page and 40x on the API, and a separate Fees page still quotes testnet rates.
• Screening can hold funds. KYT and KYA checks run on every deposit and withdrawal, and flagged deposits are returned.
• Access. The United States, China, Singapore, the United Kingdom and others are excluded, and VPN use is prohibited. Confirm eligibility before depositing; this site does not cover access workarounds.

Who SoDEX suits — and who it doesn't

It suits a trader outside the excluded list who wants an on-chain order book with maker rebates, a staking route to lower fees and stock or metal perps beside crypto, and who is comfortable that deposits are held by named custodians. It does not suit anyone who needs funds settled in a contract they control, an operator that takes responsibility for the venue, or leverage above 40x.

Getting started

• How to start on SoDEX — the excluded-jurisdiction check, email or wallet login, deposits from each asset’s native chain through the Mirror Protocol (USDC on six networks) with per-asset minimums, the Spot-to-Futures transfer, leverage and margin mode, orders, and withdrawals with their flat fees.
• Fees explained — the seven perp and spot tiers on 14-day weighted volume, the SOSO staking discount up to 40%, maker rebates, the hourly funding formula and its 4% cap, liquidation stages, and withdrawal fees by asset.

How SoDEX compares

FAQ