Arbitrum's enterprise surge: how Mastercard, LG, and record RWA made June 2026 the biggest month in L2 history. June 2026 was the month Layer 2 stopped being a scaling solution and started being an enterprise platform. Arbitrum landed Mastercard for global stablecoin settlement, LG Electronics for a blockchain ad network pilot, and the #1 ranking in tokenized real-world assets. June 2026 was the month Layer 2 stopped being a scaling solution and started being an enterprise platform. Arbitrum - the largest optimistic rollup on Ethereum - closed out the month with a trio of announcements that no other blockchain network has matched in a single quarter: a global stablecoin settlement deal with Mastercard, a dedicated chain pilot with LG Electronics for the $679 billion digital advertising market, and the number-one ranking among all blockchains in tokenized real-world assets. Three weeks earlier, ZKsync creator Matter Labs announced a full pivot to enterprise infrastructure - a story Thirdweb covered separately. But Arbitrum did not pivot. It grew organically into the enterprise role while maintaining its position as Ethereum's leading DeFi rollup. Here is what happened, who chose Arbitrum, and what it means for developers building on the L2 that just became Wall Street's default. Mastercard taps Arbitrum for global stablecoin settlement. On June 3, Mastercard announced it had selected Arbitrum as one of the networks powering its new global stablecoin settlement infrastructure. The payments giant, which processes trillions of dollars in transactions annually, is routing regulated stablecoins - including USDC and PayPal's PYUSD - through Arbitrum to enable 24/7 settlement for its global network of issuers and acquirers. This means settlement that used to take days can now happen in seconds, on weekends and holidays, without relying on legacy correspondent banking rails. Mastercard's decision to build on Arbitrum rather than a permissioned consortium chain - or even its own proprietary ledger - is a signal that public Ethereum L2 infrastructure has reached enterprise-grade maturity. Arbitrum was chosen in part because it already hosts over $7.8 billion in stablecoin liquidity, making it the largest stablecoin L2 on Ethereum. For Mastercard's issuers, that liquidity means deep markets with minimal slippage when settling large institutional flows. LG Electronics builds an ad network on Arbitrum Orbit. On June 11, Fortune broke the news that LG Electronics - the South Korean consumer electronics giant with $63 billion in annual revenue - is piloting a dedicated blockchain for advertising on Arbitrum's Orbit stack. LG's internal blockchain R&D lab partnered with an unnamed Japanese advertising agency to build a transparent, shared ledger for ad inventory, sales attribution, and audience interaction records. The digital advertising market is valued at approximately $679 billion globally, but it is plagued by fraud, opaque intermediation, and broken attribution models. According to Juniper Research, advertisers lose an estimated $84 billion annually to ad fraud alone. LG's pilot uses Arbitrum Orbit - the permissionless rollup deployment framework that lets teams launch their own Arbitrum-compatible chain - to bring cryptographic verifiability to every step of the ad supply chain. This is not a marketing stunt. LG is running the pilot in a production R&D environment, evaluating whether to bring the network to market later in 2026. Brendan Ma, Head of Investment Strategy at the Arbitrum Foundation, said the project reflects "rising enterprise demand for Arbitrum's full-stack infrastructure platform." The ARB token saw a double-digit price gain on the announcement. Arbitrum now leads the world in tokenized real-world assets. Beyond the headlines, the data tells an even more compelling story. According to RWA.xyz data from mid-June 2026, Arbitrum now hosts 2,056 tracked tokenized assets - more than any other blockchain network, including Ethereum mainnet, Stellar, and Polygon. The network has distributed approximately $833.7 million in real-world asset value, with roughly 6,920 unique RWA holders and $276 million in monthly RWA transfer volume. In tokenized non-U.S. government debt specifically, Arbitrum holds $341.9 million, making it the second-largest blockchain globally in that category behind only Stellar. Key issuers include Spiko, which offers tokenized European short-term government debt products, alongside a growing roster of institutional RWA platforms building natively on Arbitrum. The growth trajectory is steep. Arbitrum added over 200 new tokenized assets between April and June alone, and the rate of new institutional issuance is accelerating. If trends hold, Arbitrum will likely surpass $500 million in tokenized non-U.S. government debt before the end of Q3. Why enterprises are choosing Arbitrum over other L2s. The simultaneous arrival of Mastercard, LG, and institutional RWA issuers on Arbitrum is not a coincidence. Three structural advantages set Arbitrum apart for enterprise adopters. First, Arbitrum Orbit gives enterprises a dedicated chain with customizable parameters - gas tokens, permissions, sequencer policies, and data availability options - while inheriting Ethereum's security. This is the architecture LG used for its ad network pilot and the model that institutional RWA issuers are adopting to meet compliance obligations without sacrificing composability. Second, Arbitrum's stablecoin liquidity is the deepest of any L2. With $7.8 billion in stablecoins across USDC, USDT, and DAI, it offers the tightest spreads for institutional settlement flows - a decisive factor for Mastercard, which routes billions of dollars in daily transaction volume. Third, Arbitrum's Nitro fraud-proof system and multi-year production track record provide the reliability guarantees that enterprise compliance teams require. While ZK rollups have theoretical advantages in finality, optimistic rollups with battle-tested fraud proofs have proven more attractive to risk-averse institutions. What this means for developers. For developers, Arbitrum's enterprise moment changes the calculus of where to build. The network now offers something no other L2 can match: a single ecosystem that spans consumer DeFi, institutional settlement, enterprise supply chains, and tokenized real-world assets - all connected by shared liquidity and Ethereum security. Developer tools and SDKs that work on Arbitrum One - including the full Ethereum smart contract toolchain - work identically on Arbitrum Orbit chains. This means a team building a DeFi protocol on Arbitrum One today can later deploy an Orbit chain for institutional clients using the same codebase, the same wallets, and the same developer experience. The barrier to serving both retail and enterprise users from one stack has never been lower. The Mastercard integration also signals growing demand for stablecoin-native infrastructure - payment flows, compliance tooling, and institutional custody integrations - creating new categories of developer opportunity beyond traditional DeFi primitives. If you are building smart contracts, payment rails, or tokenization platforms, Arbitrum's enterprise pipeline is a distribution channel worth targeting. The enterprise Layer 2 era has arrived. June 2026 will be remembered as the month Ethereum Layer 2s crossed the enterprise chasm. ZKsync pivoted to permissioned privacy infrastructure for banks. Arbitrum onboarded Mastercard, LG, and became the world's leading tokenized asset platform without changing course. Both paths lead to the same destination: L2s are no longer just scaling Ethereum. They are becoming the settlement and coordination layer for global commerce. For developers, the window is open. Mastercard's stablecoin network, LG's ad infrastructure, and more than 2,000 tokenized assets are all live on Arbitrum today - and each one needs smart contracts, frontends, compliance tooling, and integrations. If you are ready to build, thirdweb offers developer plans that scale with your project, from your first smart contract to production-grade deployments across any EVM chain - including Arbitrum One and every Orbit chain in the ecosystem.

Why the finance industry is looking to agentic AI. Sandy Thin Updated 2 hr ago What if an AI assistant could do your shopping? This is agentic AI: software that doesn't just answer queries but carries out complex tasks autonomously. Last week, at the Money 20/20 Europe event in Amsterdam, Mastercard, Dutch bank ING and payment services company Worldline announced they had completed "Europe's first live end-to-end agentic payment." A shopper told an AI assistant to look for concert tickets in a certain place on a given date, within a defined budget; the assistant found options, and after the shopper selected one, it paid for them, with human approval. Agentic AI was one of the hot topics at the conference - billed as the largest annual gathering of the financial technology, or fintech, industry. For many years, fintech and traditional banks were seen as rivals, but many are now partnering to adopt these technologies. Scarlett Sieber, the conference's chief strategy and growth officer, told CNN that AI in finance used to be a buzzword, but now real adoption has gone beyond startups, and is "happening across the board." The deployment of AI agents across the financial industry is expected to jump from 24% today to 81% by 2030, according to a 2026 report led by the University of Cambridge that surveyed over 600 firms and regulators worldwide. However, it cautioned that the rapid technological change "currently outpaces the supervisory frameworks and technical capacities required to oversee them." Investing agents. The Israeli multinational eToro is known for its investing app that lets users buy shares and replicate other traders' moves. CEO Yoni Assia told CNN the app's AI assistant had been recently upgraded, from providing financial advice on a user's portfolio to acting on their behalf under preset limits. One striking example is an app on the eToro platform called POTU$, which scans Donald Trump's social media and news about him. When the US president posts something that may move markets, it can place a trade in a user's account within seconds. eToro CEO Yoni Assia sat down with CNN Correspondent Eleni Giokos to talk about the trading platform's shift toward AI Across the company, Assia claimed, AI use had grown roughly tenfold in six months, and 95% of its new code was now AI-written, up from none two years earlier. Still, he added, AI "is useless without humans steering it." Customer support. Last month, Klarna, the Swedish company behind the "buy now, pay later" buttons at many online checkouts, became the launched a shopping search app in ChatGPT. In 2024, Klarna built an AI assistant with with OpenAI to handle customer service - claiming that it did the work of 700 full-time human agents. New technology such as AI "allows us to do more with less," Klarna CEO Sebastian Siemiatkowski told CNN at the event, adding that the company's workforce had fallen from 6,000 people to fewer than 3,000 in recent years, while revenue per employee rose. Last year, Bloomberg reported Siemiatkowski saying that cost cutting had led to "lower quality" and that Klarna had begun rehiring human agents, "investing in the quality of the human support." Speaking to CNN, Siemiatkowsk conceded that AI could lead to job losses across industries. He said customer-facing jobs, from sales to lawyers, will "fare very, very well," but there "might be short-term negative implications in specific job areas." He declined to say what share of Klarna's jobs had been replaced by AI. Old money, new tricks. For traditional institutions like ABN AMRO - the third-largest Dutch bank - AI is part of a broader digital shift, as it went from 500 physical branches in 2010 to 26 today, CEO Marguerite Bérard told CNN. It also plans to cut 5,200 jobs by 2028, from 2024 levels. "Eighty-five percent of our colleagues in the bank, myself included, use AI in our daily work," she said, adding that customers hold millions of conversations with its AI bot "Ana" and that its AI bot "Lenny" is streamlining credit requests. Marguerite Bérard became the first woman to lead one of the Netherlands' three biggest banks when she took over at ABN AMRO in April 2025. Beyond banking, the growing adoption of agentic AI across industries has raised concerns from some quarters. Research company Gartner last year predicted that more than 40% of agentic AI projects will be canceled by the end of 2027, "due to escalating costs, unclear business value or inadequate risk controls." A recent report from professional services company Accenture and Wharton business school noted that with increased automation from agentic AI, "leaders must determine which decisions to delegate, where human judgment must remain central, and how governance, accountability and trust are designed into the system." For Bérard, human oversight is key. "If you put AI on a bad process, you still have a bad process," she said. Her rule is "guardrails but no handcuffs," with "always a human on top and in the loop."