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SBI Holdings acquires Bitbank for $289 million, creating Japan's largest cryptocurrency exchange; bipartisan U.S. senators urge CFTC to investigate Polymarket's "deceptive marketing."

According to BBX data, last weekend Japan's largest financial group completed the most important cryptocurrency acquisition, and U.S. bipartisan senators launched a new regulatory offensive against prediction market platforms. The core developments are as follows:SBI Holdings, Inc. (Tokyo Stock Exchange: 8473) announced the acquisition of the Japanese cryptocurrency exchange Bitbank (privately held) for approximately $289 million. After the transaction is completed, SBI's cryptocurrency business will surpass all competitors, creating Japan's largest cryptocurrency exchange. SBI Holdings is one of Japan's largest independent financial services groups, already owning cryptocurrency-friendly network bank SBI Shinsei Bank, cryptocurrency asset custodian SBI Digital Asset Holdings, and multiple Bitcoin mining and cryptocurrency venture capital investments. Bitbank is one of Japan's largest spot BTC exchanges and holds an official cryptocurrency exchange license from the Financial Services Agency (FSA) of Japan. This acquisition marks a shift for traditional Japanese financial institutions from "strategic trial" in the cryptocurrency sector to "scale acquisition dominance," alongside the joint stablecoin plan of the three major banks: Mitsubishi UFJ ($MUFG), Sumitomo Mitsui ($SMFG), and Mizuho ($MFG) (targeting March 2027), forming the most intensive wave of cryptocurrency layout in Japan's financial industry by 2026.U.S. Senators John Curtis (Republican, Utah) and Adam Schiff (Democrat, California) reported on June 28 that they jointly sent a letter to the CFTC, urging it to conduct a formal investigation into the prediction market platform Polymarket (privately held), citing a "concerning" investigative report regarding Polymarket's "deceptive marketing" practices, which accused it of systematic misleading in user acquisition and risk disclosure. This is the third regulatory offensive against prediction market platforms initiated by Congress this year (previously, the House Oversight Committee launched an insider trading investigation on May 22); the two senators come from different parties, which is significant. For Robinhood Markets, Inc. (NASDAQ: $HOOD), this investigation poses indirect pressure—Robinhood's prediction market/event contract business (which achieved a record daily trading volume in June) faces the same regulatory qualitative disputes as Polymarket; however, Robinhood's defensive advantage lies in its ongoing application for a CFTC Designated Contract Market (DCM) license, providing a clearer compliance path compared to Polymarket.

Polymarket's annual revenue exceeds 1 billion dollars

According to CNBC, Polymarket stated that its annual revenue has significantly exceeded $1 billion, a development that comes just six weeks after its U.S. trading platform lifted the waiting list. The platform operates independently from its international DeFi prediction market and will gradually expand user access after its launch in December this year.Driven by the FIFA World Cup, the trading activity in the prediction market has significantly increased, with trading volumes across multiple platforms rising simultaneously. Data shows that the daily trading volume on the U.S. platform has grown from about $50 million in mid-May to over $200 million on June 20 (based on Dune Analytics data).Meanwhile, its international platform set a record for weekly trading volume during the World Cup, reversing the downward trend seen in April and May. The U.S. business was previously restricted due to regulatory issues in 2022, but resumed operations in the form of a regulated exchange after the U.S. Commodity Futures Trading Commission (CFTC) and the Department of Justice dropped their investigation and did not file charges in 2024.Currently, the U.S. platform is primarily mobile-based, requiring users to download the app via a QR code to trade, with the desktop version not yet available. Polymarket stated that it will continue to optimize market experience, liquidity, and product design to enhance both institutional and consumer-level experiences in the prediction market.

Blockchain data infrastructure company Cambrian has completed a $6 million seed round financing, led by Franklin Templeton and Polychain

Blockchain data infrastructure startup Cambrian has completed a $6 million seed round financing, led by Franklin Templeton and Polychain Capital, with participation from Flow Traders, Selini Capital, Paper Ventures, Nomad Capital, and others.Cambrian also previously secured $5.9 million in pre-seed financing led by a16z Crypto Startup Accelerator, bringing the total funding to $11.9 million. It is reported that Cambrian was established in 2024 and currently provides APIs for institutions and AI Agents, covering real-time and historical on-chain data such as yield, risk, lending rates, trading activity, liquidity positions, and market sentiment, helping users allocate capital on-chain.The company plans to expand its existing APIs into a verifiable blockchain data oracle network, serving institutional financial clients, AI Agent builders, and protocols that need reliable data to control the flow of funds. Unlike traditional oracles that mainly provide price data, Cambrian aims to aggregate lending protocol data, DEX liquidity, social sentiment, developer activity, and historical market data.According to Cambrian, its platform has processed millions of API calls, currently indexing approximately $4.5 billion TVL across four major lending protocols, tracking 1,789 vaults under 895 curators, and monitoring over 320,000 DEX liquidity pools on Base and Solana. The company also plans to expand trading data support, adding Hyperliquid and richer perpetual contract data.

MetaPlanet's BTC reserves face a dual-edged sword challenge in exchange rates after the Bank of Japan raised interest rates. OSL Group, in collaboration with the Hong Kong Polytechnic University, released a report stating that corporate cross-border trade payments will drive the large-scale adoption of stablecoins

According to BBX data, yesterday's interest rate hike in Japan coincided with the Federal Reserve's decision window, creating the most intense macroeconomic shock point of the week. The latest results of institutional stablecoin research were released on the same day, with the core dynamics as follows:Metaplanet Inc. (TSE: 3350), as the largest corporate BTC reserve holder in Asia and the third largest publicly traded company holding Bitcoin globally (holding 40,177 BTC at an average price of about $104,000, with a target of 100,000 BTC by the end of 2026), faced a dual-edged sword pressure from the exchange rate yesterday: after the Bank of Japan announced a 25 basis point increase in the policy interest rate to 1.0%, the yen strengthened, superficially lowering the book value of BTC denominated in yen, but Bitcoin subsequently rose against the trend (CoinDesk's headline on the same day: "Bitcoin rallies after Japan rate increase"), with actual improvements in USD-denominated holdings. The company's current holdings are approximately $2.64 billion (estimated at $65,750/BTC), with the latest capital move being the issuance of 8 billion yen (about $55 million) for the 20th bond (EVO FUND) on April 24 for additional BTC purchases. Analysts warn that if the BOJ's interest rate hike triggers large-scale unwinding of "Yen Carry Trade," global risk assets including BTC may suffer systemic deleveraging shocks—however, Metaplanet holds physical BTC rather than leveraged positions, with its main risk being the exchange rate conversion effect rather than forced liquidation.OSL Group (Hong Kong Stock Exchange: 0863.HK) and the School of Business at the Hong Kong Polytechnic University jointly released a white paper on June 16 (The Block included it on the same day at 9:01 am EDT), titled "Cross-Border Trade Payments Will Drive the Adoption of Regulated Corporate Stablecoins." The core conclusion is that the demand for corporate-level cross-border trade payments is the main path to drive the large-scale adoption of regulated stablecoins, with importance surpassing retail consumption scenarios. OSL Group holds the Hong Kong Securities and Futures Commission licenses 7 (automated trading services) and 1 (securities trading), making it one of the few compliant exchanges globally with both institutional custody and practical experience in stablecoin settlement. Previously, it provided institutional clients with approximately $130 million in USDGO stablecoin settlement services in April 2026. This white paper provides an industrial basis for the stablecoin policy framework of Hong Kong's financial regulatory authorities, and, together with Visa's stablecoin settlement of $7 billion annualized scale, SoFi SoFiUSD's launch, and Western Union's USDPT layout, constitutes multiple points of evidence accelerating the global adoption of corporate stablecoins.
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