What is Serum (SRM)?

Quick Facts

  • Launched: August 2020 on the Solana blockchain
  • Type: Decentralized exchange (DEX) with an on-chain order book
  • Native token: SRM (utility and governance)
  • Companion token: MegaSerum (MSRM) for validator nodes
  • Key feature: Central Limit Order Book (CLOB) fully on-chain
  • Backed by: FTX, Alameda Research, and the Solana Foundation
  • Status: Protocol declared defunct in 2022; community fork OpenBook launched

Introduction

Serum is a decentralized exchange protocol built on the Solana blockchain. Unlike most DEXes that rely on Automated Market Makers (AMMs) and liquidity pools, Serum introduced a fully on-chain Central Limit Order Book (CLOB) — allowing traders to place limit orders, match counterparties, and settle trades entirely on-chain without relying on off-chain infrastructure.

This design closely mirrors how traditional centralized exchanges work, but without any central authority controlling funds or orders.

History & Background

Serum was launched in August 2020 by Sam Bankman-Fried, who also founded FTX exchange and Alameda Research. It was among the first major DeFi projects to launch natively on Solana and quickly attracted institutional backing from Jump Trading and others.

By 2021, Serum had grown into a core piece of Solana's DeFi infrastructure, powering major protocols like Raydium, Mango Markets, and Jupiter. However, the collapse of FTX in November 2022 severely compromised the project, and Serum declared its original program 'defunct.'

How Serum Works

At its core, Serum runs an Asset-Agnostic Order Book (AOB) — a shared, permissionless matching engine on Solana. Other protocols can plug into this order book to inherit liquidity and price discovery without building their own.

Solana's high throughput enables sub-second trading and settlement at a fraction of a cent per transaction. This made Serum capable of handling professional-grade order types like limit orders and market orders entirely on-chain — something previously only practical on centralized exchanges.

Serum also supported cross-chain swaps, allowing users to exchange assets across different blockchains without oracles or intermediaries.

Tokenomics

SRM is the utility and governance token of the Serum ecosystem. Holders benefit from trading fee discounts of up to 50%, and participate in on-chain governance votes covering fee structures, new listings, and protocol upgrades.

A buy-and-burn mechanism was built in, where a percentage of platform fees is used to buy and burn SRM tokens, creating a deflationary pressure tied to protocol usage.

Serum also features a companion token, MegaSerum (MSRM), created by locking 1,000,000 SRM. MSRM provides enhanced fee discounts (up to 60%) and is required to run a validator node on the network.

Circulating supply ? 261.00 million SRM
Reserved supply ? 0 SRM
Burned
0x0000000000000000000000000000000000000001
0 SRM
Total supply ? 261.00 million SRM
Max supply ? 10.16 billion SRM
Updated 8h ago

Ecosystem & Use Cases

Serum served as composable middleware for the broader Solana DeFi ecosystem. Projects like Raydium, Mango Markets, and Jupiter Aggregator all drew liquidity directly from Serum's order books — making it a foundational backend for Solana-based trading applications.

Beyond trading, Serum's infrastructure extended to NFTs, gaming, wallets, and data analytics projects that needed reliable on-chain liquidity and order matching.

Team, Governance & Community

Serum was founded by Sam Bankman-Fried and launched with support from a consortium including FTX, Alameda Research, and the Solana Foundation. Jump Trading also backed the project as a liquidity provider.

Governance was intended to be token-holder driven, with SRM holders voting on protocol parameters and ecosystem grants. However, a critical vulnerability was exposed in 2022: the program's upgrade authority was held by a private key connected to FTX, not the SRM DAO — undermining the decentralization promise.

Advantages

  • On-chain order book: Full limit order functionality without off-chain components
  • Ultra-low fees: Solana's speed enables near-zero transaction costs
  • Composable infrastructure: Any Solana project could plug in and share liquidity
  • Cross-chain support: Trustless swaps across different blockchains without oracles
  • Governance and fee discounts: SRM holders gain real utility within the ecosystem

Risks & Challenges

  • FTX collapse: The FTX implosion in 2022 exposed that upgrade keys were controlled by FTX, not the community — a major centralization failure
  • Protocol defunct: The original Serum program was declared defunct; most activity migrated to the OpenBook fork
  • SRM token uncertainty: Large SRM holdings in FTX's bankruptcy estate created significant sell pressure and uncertainty over the token's future
  • Concentration risk: Deep ties to a single entity (FTX/Alameda) proved to be an existential vulnerability
  • Competition: The broader Solana DEX space has since evolved with numerous new protocols

Long-Term Vision

Serum's original vision was to drive global mass adoption of DeFi by providing institutional-grade trading infrastructure on a fast, low-cost blockchain. The goal included reaching a billion users and trillions in on-chain value.

While the original Serum protocol has stalled, its architectural legacy lives on through OpenBook — a community-driven fork that preserves the on-chain CLOB model. Serum's pioneering work demonstrated that professional order-book trading is technically viable in a fully decentralized environment, a concept that continues to influence DeFi design across the industry.

Frequently Asked Questions

Serum is a decentralized exchange protocol built on the Solana blockchain. It introduced a fully on-chain Central Limit Order Book, allowing traders to place limit orders and settle trades without relying on centralized infrastructure or AMM liquidity pools.

Most DEXes use Automated Market Makers (AMMs) to facilitate trades. Serum instead uses a Central Limit Order Book (CLOB) fully on-chain, enabling limit orders and price-time-priority matching — similar to how centralized exchanges operate, but without a central authority.

SRM is Serum's utility and governance token. Holders receive trading fee discounts of up to 50%, can vote on protocol decisions, and benefit from a buy-and-burn mechanism where platform fees are used to purchase and destroy SRM tokens.

MegaSerum (MSRM) is a companion token created by locking 1,000,000 SRM. It grants enhanced fee discounts of up to 60% and is required to operate a validator node on the Serum network.

When FTX collapsed in November 2022, it was revealed that the upgrade authority for Serum's smart contract was held by a private key linked to FTX — not the SRM DAO. This security risk prompted major Solana protocols to abandon Serum, and the project declared its original program defunct.

OpenBook is a community-led fork of Serum's V3 program, launched in November 2022 in response to the FTX crisis. It preserves Serum's on-chain order book architecture but operates independently of SRM and the original Serum team.

SRM exists natively as an SPL token on the Solana blockchain. It is also available as an ERC-20 token on Ethereum and on BNB Smart Chain, making it accessible across multiple ecosystems.

Serum served as foundational infrastructure for many Solana DeFi projects, including Raydium, Mango Markets, and Jupiter Aggregator. These protocols drew liquidity directly from Serum's on-chain order books to power their own trading features.