# Expanding Horizons of DeFi Swap Marketplaces and Beyond - Sergej Kunz

- Speakers: Sergej Kunz
- Channel: [ETHGlobal](https://streameth.org/ethglobal)
- Date: 2025-10-09
- Duration: 21:07
- Topics: DeFi, decentralized finance, 1inch, Sergej Kunz, cross-chain, swap marketplaces, liquidity fragmentation, smart contracts, Web3, ownership, composability, trustless, non-custodial, atomic swaps, Dutch auction, MEV protection, intent-based protocol, hackathon, Ethereum, Solana, Polygon, BSC, security, gasless, self-custody, decentralized exchanges, market makers, compliance, innovation
- Watch: https://streameth.org/watch/yt-QpX5i-be2cE
- YouTube: https://www.youtube.com/watch?v=QpX5i-be2cE

## Description

Sergej Kunz, co-founder of 1inch, discusses the expanding horizons of DeFi swap marketplaces, focusing on cross-chain DeFi, fragmented liquidity, and the evolution from early crypto adoption to today’s decentralized finance landscape. He highlights DeFi’s core principles: accessibility, composability, trustlessness, and non-custodial ownership. Kunz explains the growth of DeFi from Ethereum to multiple blockchains (Polygon, BSC, Solana, Tron), the challenges of liquidity fragmentation, and the advantages over centralized exchanges.

He introduces 1inch’s intent-based swap protocol, which uses Dutch auctions and atomic swaps to enable secure, gasless, cross-chain trading, protecting users from MEV and sandwich attacks. The protocol is extensible, supports 13+ networks, and emphasizes self-custody, security, and decentralization. Kunz concludes by encouraging participation in DeFi innovation and hackathons.

00:00 Introduction  
00:37 Early Crypto Adoption vs. Internet Adoption  
01:48 Web3, Ownership, and DeFi Fundamentals  
02:45 DeFi: Accessibility, Composability, Trustlessness, Non-Custody  
04:20 1inch Origins and Hackathon Experience  
05:34 DeFi Market Growth and Composability  
07:01 Trustless and Non-Custodial DeFi  
07:27 DeFi Market Size and Centralized vs. Decentralized Exchanges  
09:16 Global Access and Liquidity Fragmentation  
11:02 Cross-Chain DeFi and Fragmented Liquidity  
13:01 Security Risks and MEV Protection  
14:42 Intent-Based Protocols and Atomic Cross-Chain Swaps  
16:11 Features: Gasless, Secure, Extensible, Competitive  
18:35 Network Expansion and Decentralization  
19:34 Compliance, Market Makers, and Dutch Auctions  
20:37 Future of DeFi Trading and Closing Remarks

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