L2 · EVM

Arbitrum

Largest optimistic rollup by TVL and stablecoin liquidity.

Arbitrum One is Offchain Labs' optimistic rollup, the largest L2 by TVL. Its Nitro tech stack offers EVM+ compatibility with significant cost reduction vs Ethereum mainnet.

Official site Block explorer Updated today
Live metrics
Updated 1d ago
Stablecoin supply
$7.9B
DeFi TVL
$4.4B
Daily transactions
2.1M
Active addresses 24h
380,000
Stablecoin supply on this chain · 90d Updated today
$4.2B
Source: DeFiLlama
24h
-0.87%
7d
+3.94%
net+$157.6M
30d
+2.02%
net+$82.5M
inflow 7d$222.3M
outflow 7d$64.6M
Technical profile

Technical profile

Native token
ARB
Gas token
ETH
Consensus
Optimistic rollup (Nitro)
VM
Arbitrum Nitro (EVM+)
EVM compatible
Yes
Block time
0.25s
Finality
L1 finality ~13 min; 7-day fraud proof window
TPS (typical / max)
250 / 4,000
Avg fee
$0.03
Launched
Aug 31, 2021
Foundation and contributors

Foundation and contributors

Foundation
Arbitrum Foundation / Offchain Labs
Country of origin
United States
Core contributors
Offchain LabsArbitrum Foundation
Stablecoins on this chain

Stablecoins on this chain

Symbol
Supply
Contract
USDC
$4.6B
0xaf88d0…8e5831
USDT
$2.9B
—
USDE
$1.1B
—
DAI
$220.0M
—
FRAX
$95.0M
—
Timeline

Timeline

  1. Aug 31, 2021
    Arbitrum One launch
  2. Aug 31, 2022
    Nitro upgrade

    WASM-based execution layer replaces AVM.

  3. Mar 23, 2023
    ARB token airdrop
  4. Aug 26, 2024
    Stylus (Rust/C++ smart contracts)
  5. May 15, 2025
    BoLD fraud proofs activated

    Permissionless fraud proof system replaces trusted operator model.

Ecosystem

Ecosystem

Notable projects
  • GMX (perps)
  • Camelot (DEX)
  • Pendle
  • Aave V3
  • Curve
  • Radiant
Bridges and interop

Bridges and interop

Arbitrum BridgeAcrossLayerZeroCircle CCTP
Best for

Best for

  • ›Largest L2 DeFi liquidity
  • ›Perpetuals (GMX, Vertex)
  • ›USDC-on-Arbitrum corporate treasury
  • ›Ethereum-equivalent dApp deployment
Risk notes

Risk notes

  • ● Optimistic rollup withdrawal delay (7 days)
  • ● Sequencer was centralized until BoLD activation
  • ● L1 data availability dependency
Resources

Resources

More on Arbitrum

For cross-chain context, deeper dives and stablecoin-specific analysis, see the blog and the stablecoins index.