FDUSD trades almost entirely on Binance, where it serves as the quote asset for dozens of spot pairs and carries a zero maker fee on a long list of them. To acquire it, you either buy directly with another stablecoin on a centralized exchange or swap into it onchain through a BNB Chain or Arbitrum liquidity pool. This guide covers both routes, the chains FDUSD lives on, and the fees at each step.
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First Digital USD concentrates its liquidity on a single venue more than almost any other major stablecoin. Binance is the primary market: FDUSD is the quote currency for spot pairs spanning BTC, ETH, SOL, BNB, XRP, DOGE, and LINK, and at points in 2024 these pairs accounted for the single largest share of Binance spot volume of any stablecoin.
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Circulating supply tells the same concentration story. FDUSD sits near $326 million as of September 15, 2026 per DeFiLlama, down sharply from its April 2024 peak above $4 billion. That contraction followed an early April 2025 depeg episode, when FDUSD broke its dollar peg after Tron founder Justin Sun publicly claimed issuer First Digital Trust was insolvent (Blockworks). First Digital denied the allegations and the peg recovered within days, but supply has stayed well below its prior high. The detail that matters for buyers: nearly all of the remaining liquidity lives on Binance and on a handful of BNB Chain DeFi pools, not spread across many exchanges the way USDC or USDT is.
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Onchain, FDUSD ranks among the top three stablecoins by total value locked on BNB Chain, deployed across PancakeSwap, the Venus lending market, and most major BNB Chain money markets. PancakeSwap added five new FDUSD pools in October 2025 pairing FDUSD with ETH, BTCB, and WBNB. On Arbitrum, where First Digital Labs launched native FDUSD in June 2025, liquidity routes through Camelot.
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FDUSD is a multichain token, but the chain you hold it on determines your fees and which liquidity you can reach. It is deployed natively on Ethereum, BNB Chain, Sui, Solana, Arbitrum, and TON per First Digital Labs. The five carrying the deepest FDUSD liquidity:

The practical default is BNB Chain. Binance withdraws FDUSD over BEP-20 by default, gas runs about twenty cents, and the deepest non-exchange pools (PancakeSwap, Venus) live there. Move to Ethereum only when you need a downstream DeFi position that does not exist on BNB Chain, and accept the higher gas. Arbitrum is the low-fee alternative for L2-native DeFi through Camelot.
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Binance is the route most buyers take because it holds the deepest order books and runs a standing zero-fee promotion across a long list of FDUSD pairs (Binance spot promotions, checked September 16, 2026). The flow takes four steps once you hold a funding asset.

The zero-fee pairs are a deliberate liquidity strategy: Binance subsidizes FDUSD trading to keep it as the house stablecoin against the major assets. That subsidy is why FDUSD volume punches far above its roughly $326 million supply (DeFiLlama, September 15, 2026).
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If you already hold stablecoins onchain and want FDUSD without touching a centralized exchange, you swap into it through a decentralized pool. The route depends on the chain.

For buyers who hold a stablecoin on one chain but want FDUSD on another, the swap and the chain hop are two separate problems. Acquiring FDUSD is a DEX swap; getting it to the chain where you need it is a cross-chain move.
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Because FDUSD liquidity sits unevenly across its five chains, buyers frequently need to move it after acquisition. A position bought as a BEP-20 token on Binance often needs to reach an Arbitrum or Ethereum application. This is where stablecoin routing infrastructure matters more than the buy itself.
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Eco Routes treats this as a single operation. Instead of manually bridging FDUSD from BNB Chain to Arbitrum and paying bridge fees plus two sets of gas, an intent-based route quotes one price for the full origin-to-destination move and settles it through whichever liquidity path is cheapest at execution time. For a stablecoin whose liquidity is fragmented across Binance, PancakeSwap, and Camelot on three different chains, abstracting the cross-chain step is the difference between a four-transaction sequence and a single signed intent.
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There is no large direct fiat on-ramp for FDUSD. Most buyers convert fiat to USDT or USDC first (through Binance P2P, a card purchase, or a bank transfer) and then swap into FDUSD. The intermediate stablecoin step adds one trade but no meaningful cost on the zero-fee Binance pairs.
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FDUSD trades on other centralized venues as well. HashKey Exchange added FDUSD/USD, BTC/FDUSD, and ETH/FDUSD pairs in September 2026 (First Digital Labs). Order-book depth outside Binance is a fraction of Binance volume, so for tight spreads and fast fills Binance and the BNB Chain DEX pools remain the practical venues.
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On Binance, the FDUSD pairs on the spot promotions list carry a zero maker fee, and FDUSD/USDT is zero on both maker and taker; pairs off that list charge the standard 0.1% (Binance spot promotions, checked September 16, 2026). Onchain swaps cost the DEX fee (typically 0.01% to 0.05% on stable pools) plus gas, which ranges from under a cent on Solana to about twenty cents on BNB Chain to several dollars on Ethereum. Cross-chain moves add a bridge or routing fee on top.
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BNB Chain (BEP-20) is the default for cost and liquidity: about twenty cents in gas and the deepest non-exchange pools. Choose Ethereum only when a downstream DeFi position requires it, Arbitrum for low-fee L2 DeFi through Camelot, and Solana or Sui for those ecosystems specifically.
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FDUSD is straightforward to buy and unusually concentrated to hold: one dominant exchange, one dominant onchain home in BNB Chain, and pockets of liquidity on Ethereum, Arbitrum, Solana, and Sui. The friction is not acquisition but movement, since the chain where you buy FDUSD is rarely the chain where you spend it. Eco Routes handles that cross-chain step as a single quoted intent, so a stablecoin acquired on Binance reaches the application that needs it without a manual bridge sequence. For the issuer and reserve picture behind the token, see What Is FDUSD and FDUSD Reserves and Backing.
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Sources: DeFiLlama stablecoins (circulating supply and historical peak, pulled September 15, 2026); Binance spot trading promotions (zero-fee FDUSD pair list, checked September 16, 2026); Binance zero-fee FDUSD pairs announcement; First Digital Labs: native FDUSD on Arbitrum (June 2025); The Block: FDUSD share of Binance spot volume. Methodology: supply and peak figures pulled from DeFiLlama on September 15, 2026; the zero-fee pair list read from Binance's live spot promotions page on September 16, 2026; chain deployment taken from First Digital Labs announcements.
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