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JPYC price briefly diverges to 2.2 yen on Upbit listing, circulating supply up 2.2x day-on-day to over 4.2 billion yen
The total circulating supply of JPYC, a Japanese yen-pegged stablecoin, has surpassed 4 billion JPYC, reaching approximately 4.26 billion JPYC, according to the latest data from JPYC info, which compiles on-chain data. That marks an increase of about 2.36 billion JPYC from roughly 1.89963 billion JPYC as of 10:23 on September 17, a 2.2x rise day-on-day. The trigger was the start of JPYC trading on September 17 on the South Korean crypto exchange Upbit, which opened three markets for the token: Korean won, Bitcoin, and Tether, marking the first time a Korean won-denominated trading pair has been offered for JPYC. Immediately after trading began, the price diverged sharply from its baseline level of around 1 yen, with CoinMarketCap recording a temporary high of about 2.2 yen per JPYC. At the start of trading, the only network Upbit supported for deposits and withdrawals was Ethereum, and JPYC on Ethereum accounted for only about 7 percent of the total at the time, which is seen as one reason the available supply was limited. The price gap drew a rush of funds from investors seeking arbitrage, and reports proliferated on X of users who issued JPYC at 1 yen and swapped it for USDC on DEXs such as Uniswap to turn a profit. As of September 18, Polygon ranked first in circulating supply by chain, followed by Ethereum in second and Kaia in third, and after trading began Upbit also began supporting deposits from Kaia and Polygon.
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Coinbase CEO Says AI Agents Will Need Their Own Financial Infrastructure
Coinbase CEO Brian Armstrong said AI agents will need their own financial infrastructure, telling Scott Melker that the company has built a set of tools for the agentic economy. Armstrong said the existing payment rails are sometimes not sufficient for AI because agents want to move very fast, make payments globally, and in some cases transact in very small amounts. The stack includes the Base blockchain, the USDC stablecoin that Coinbase co-created with Circle, and the X402 protocol, which Coinbase created and which is now under the Linux Foundation in collaboration with Google, AWS, CloudFlare and others. He said X402 allows agents to pay each other in real time instantly all over the world, even in very small transaction amounts like a couple of cents at a time, which traditional payment rails do not really support. Armstrong also said Coinbase has been able to bring perpetual futures products to the US under this administration, calling them a pretty killer app in the trading world, and that he expects a future not too far off in which more agents transact in the economy than humans.
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House Committee Advances Digital Asset Tax Certainty Act 38-5
The House Ways and Means Committee advanced the Digital Asset Tax Certainty Act by a bipartisan 38 to 5 vote, one day after the Senate rejected the CLARITY Act on September 15. The bill creates a de minimis exemption for network or transaction fees of $10 or less, though it does not exempt the underlying purchase, so buying a coffee with Bitcoin would still trigger a capital-gains calculation while the blockchain fee could be exempt; the exemption would not apply to service providers processing transactions for others. The bill also extends wash-sale rules to widely traded digital assets, ending the practice of selling Bitcoin at a loss and immediately repurchasing it to offset gains, and it establishes tax treatment for stablecoins, lending, mining, and staking. Representative Steven Horsford pushed for the small-transaction exemption during committee consideration, while an earlier proposal to defer taxes on mining and staking income until the assets were sold was dropped from the version that advanced. Representative Lloyd Doggett opposed the bill, arguing its provisions favor the crypto industry over broader taxpayer priorities, and no full House vote has been scheduled, with a larger year-end tax package a possible route.