GYEN

Ethereum

Stellar

Arbitrum

Solana

GYEN (GYEN) is a cryptocurrency launched in 2021and operates on the Ethereum platform. GYEN has a current supply of 2,098,780,833. The last known price of GYEN is 0.00628474 USD and is down -0.49 over the last 24 hours. It is currently trading on 35 active market(s) with $20,364.59 traded over the last 24 hours. More information can be found at https://stablecoin.z.com/.

## What Is Uniswap (V2)?

Uniswap is a [decentralized exchange](https://coinmarketcap.com/alexandria/glossary/decentralized-exchange-dex) (DEX) which first introduced the [automated market maker](https://coinmarketcap.com/alexandria/glossary/automated-market-maker-amm) (AMM) model. Unlike with an [order book](https://coinmarketcap.com/alexandria/glossary/order-book), traders are provided with constant liquidity thanks to the “constant product” formula. The V2 version was first based on [Ethereum](https://coinmarketcap.com/currencies/ethereum/), before branching out to other blockchains that support [ERC-20](https://coinmarketcap.com/alexandria/glossary/erc-20) tokens.

While the V1 version of Uniswap only supported [swapping](https://coinmarketcap.com/alexandria/glossary/token-swap) ETH-ERC-20 token pairs, the V2 version did away with this bridging problem and introduced flash swaps. These allowed users to swap between different ERC-20 tokens without incurring too much [slippage](https://coinmarketcap.com/alexandria/glossary/slippage). It also introduced protocol fees, which contributed to the platform's ongoing development. Furthermore, the V2 version began using [wrapped Ether](https://coinmarketcap.com/alexandria/article/what-is-wrapped-ethereum-weth) over native Ether for its core contracts. 

The exchange’s popularity gave birth to a V3 version with concentrated liquidity and more flexible fees, which improved the user experience for traders and liquidity providers alike. 


## Who Is the Founder of Uniswap (V2)?

Hayden Adams, a former mechanical engineer at Siemens and Stony Brook University graduate, founded the platform in November 2018. The company behind the DEX raised a seed round from Paradigm and $11 million in a Series A round led by ​​Andreessen Horowitz.


## When Did Uniswap (V2) Launch?

Uniswap’s V1 version was a proof-of-concept first launched in November 2018, and later improved with the introduction of the V2 version in August 2020. The V3 version in May 2021 marks the current final iteration of the exchange.


## Where Is Uniswap (V2) Located?

Uniswap Labs, the company behind the decentralized exchange, is headquartered in New York City. 


## Uniswap (V2) Restricted Countries

As of July 2022, Uniswap has banned users from 10 countries that are sanctioned by the U.S. government, including Belarus, Cuba, Iran, North Korea, Syria, Côte d'Ivoire, Liberia, Sudan, Zimbabwe, Iraq and Iran.


## Uniswap (V2) Supported Coins List 

As a permissionless decentralized exchange, tokens can be freely listed by anyone providing liquidity to trade them. The most liquid tokens at the time of writing include stablecoins and wrapped tokens like [USDC](https://coinmarketcap.com/currencies/usd-coin/), [Wrapped BTC](https://coinmarketcap.com/currencies/wrapped-bitcoin/), [wETH](https://coinmarketcap.com/currencies/weth/) and [DAI](https://coinmarketcap.com/currencies/multi-collateral-dai/). 


## How Much Are Uniswap (V2) Fees?

The exchange’s V2 version charges 0.3% per token swap. 0.05% goes to the protocol and 0.25% is allocated to [liquidity providers](https://coinmarketcap.com/alexandria/glossary/liquidity-provider-tokens-lp-tokens).


## Is It Possible to Use Leverage or Margin Trade on Uniswap (V2)?

Uniswap V2 does not offer leverage or margin trading.

Uniswap v2

StellarTerm

Founded in 2013, Mercado Bitcoin describes itself as an alternative asset trading platform in Latin America. Mercado Bitcoin supports Brazilian Reals (BRL), offering BRL pairs for BTC, ETH, XRP, BCH, LTC, and USDC. MB has launched in 2019 MB Digital Assets, an asset tokenization initiative that has issued more than BRL 25 MM in asset-backed tokens.

Mercado Bitcoin

##What Is Bitstamp by Robinhood?

Bitstamp by Robinhood is one of the world’s longest-running crypto exchanges, established in 2011 and trusted by customers across the globe. Robinhood’s acquisition of Bitstamp in June 2025 combines Bitstamp’s regulatory-first approach with Robinhood’s mission to democratize finance for all, uniting security, accessibility, and innovation across global crypto offering.

The platform is built on trust, prioritizing customer protection and market integrity without shortcuts, underpinned by a strong global regulatory framework. Bitstamp by Robinhood holds key licenses and registrations, including MiCA, PI, and MiFID authorizations in the EU; MLR registration with the FCA in the UK; a robust portfolio of U.S. approvals such as a NYDFS BitLicense, registration as a Money Services Business (MSB) with FinCEN, and multiple state-level money transmitter licenses; as well as a Major Payment Institution license in Singapore. It is grounded in audited operations, a rigorous asset listing framework with 115+ carefully selected digital assets, and strong governance across all entities. This approach has earned a top AA rating in CoinDesk’s Exchange Benchmark nine times in a row.

The platform is accessible via web, mobile app, or APIs, with funding options that include debit and credit cards, ACH, Apple Pay, Google Pay, PayPal, or international bank transfers. It offers two modes: a Basic mode for beginners and a Pro mode for advanced traders. Customers can also earn rewards through staking and lending, with 24/7 live support available anytime.

In addition to serving retail customers with crypto trading, staking, lending, and 24/7 support, Bitstamp by Robinhood also offers a robust institutional offering. Institutional clients can trade directly via high-performance APIs or UI, access deep liquidity, and integrate regulated crypto services. For partners seeking turnkey infrastructure, Bitstamp as a Service provides custom-branded, scalable exchange technology bundled with global liquidity, compliance, and 24/7 operations.

##Who Are the Bitstamp by Robinhood Founders?

Bitstamp by Robinhood was originally founded as Bitstamp in 2011 by Damian Merlak and Nejc Kodrič, and is one of the world’s longest-running crypto exchanges. That same year, it became the first crypto exchange to implement multi-signature wallets, setting early standards for crypto security.

Driven by a commitment to progress through persistence, the platform has remained focused on long-term development, supporting the industry through every market cycle. Over the years, it has built a reputation for customer protection and market integrity, consistently taking a regulatory-first approach.

In 2025, Bitstamp was acquired by Robinhood and officially rebranded as Bitstamp by Robinhood, combining its trusted infrastructure with Robinhood’s global vision.

##When did Bitstamp by Robinhood Launch?

Bitstamp by Robinhood was originally launched as Bitstamp in 2011, making it one of the earliest and most established crypto exchanges globally. Over a decade later, it continues to deliver reliable crypto access, now strengthened by Robinhood’s acquisition in 2025.

##Where Is Bitstamp by Robinhood Located?

Bitstamp by Robinhood operates with a global footprint, with offices in Luxembourg, Singapore, Slovenia, the United Kingdom, and the United States.

##Bitstamp by Robinhood Restricted Countries

Bitstamp by Robinhood serves customers across multiple global markets. Availability of specific features may vary depending on local regulations and licensing requirements.

##What Coins Are Supported on Bitstamp by Robinhood?

The platform offers access to over 115 carefully selected digital assets, including BTC, ETH, XRP, USDC, and more, subject to jurisdictional requirements. All assets are vetted through a formal asset listing framework.

##How Much Are Bitstamp by Robinhood Fees?

Bitstamp by Robinhood uses a transparent maker-taker fee model based on 30-day trading volume. Fees start at 0.3% for maker orders and 0.4% for taker orders, and decrease significantly as trading volume increases, with rates as low as 0.00% for high-volume traders. Trading volume in fiat and stablecoin pairs is weighted at 20%, offering up to 80% lower effective fees on those pairs.

Staking and lending are available through Bitstamp Earn\*, with reward commissions that vary by asset. For the complete breakdown, visit their official [Fee Schedule](https://www.bitstamp.net/fee-schedule/).

\* Bitstamp Earn Staking is not available in Canada, Japan, Singapore, or the US. Bitstamp Earn Lending is not available in Canada, Japan, Singapore, the UK, or the US.

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Coin Information & Volume Data on GYEN.

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