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According to Cointelegraph, the Internal Revenue Service (IRS) in the United States has stipulated that for transactions in 2025, brokers generally need to report the sales income from digital assets, but in most cases, they do not need to report the cost basis, and taxpayers still need to calculate their gains and losses themselves; starting from 2026, brokers will need to report the cost basis for eligible digital assets. The IRS also emphasized that even if a taxpayer does not receive a 1099-DA, they still must report income and gains and losses related to digital assets.During the first tax season applying the 1099-DA reporting rules for cryptocurrency assets in the United States, some investors are facing issues such as missing transaction data and difficulties in verifying cost basis. A survey conducted by Awaken Tax in August among 1,000 U.S. cryptocurrency investors showed that 21% of respondents who have filed or plan to file for an extension are still waiting for exchanges or cryptocurrency platforms to provide the necessary information; about 20% indicated that their 1099-DA form information is incomplete or are unsure whether it accurately reflects their trading situation.

According to Caixin, poker master and seasoned cryptocurrency investor Hu Zheweng made significant bets during the three waves of cryptocurrency frenzy involving ICOs, algorithmic stablecoins, and AI tokens, but faced consecutive failures. Hu Zheweng claimed to have invested in the blockchain project Stratis, achieving a return of "over 1000 times."According to disclosed information, Hu Zheweng invested approximately 80 million USD in algorithmic stablecoin TerraUSD (UST) and its sister token LUNA from May 2021 to May 2022, with the peak market value of his holdings exceeding 800 million USD, but the price of LUNA subsequently nearly dropped to zero.In addition, Hu Zheweng has filed a lawsuit in Chicago, USA against the globally renowned quantitative trading firm Jump Trading and its related companies and executives in the cryptocurrency business, seeking at least 500 million USD in damages. After experiencing Stox and Terra, Hu Zheweng has not left the cryptocurrency market; last January, he bet on a new project by a Chinese computer professor Zhang Yongfeng. Zhang Yongfeng entered the Computer Science Department of Tsinghua University in 2007 and is currently a tenured associate professor in the Computer Science Department at Rutgers University in the USA. He has been sued by Hu Zheweng on multiple charges including "securities fraud." It is reported that the tokens issued by the organization founded by Zhang Yongfeng, in which Hu Zheweng invested millions of dollars, have fallen over 99.6% from their peak in 2025.

KelpDAO stated on platform X that it has filed a lawsuit against LayerZero and its co-founder Bryan Pellegrino, seeking accountability for the rsETH cross-chain bridge attack incident that occurred earlier this year. The lawsuit claims that LayerZero failed to adequately disclose its inherent technical weaknesses and risks; failed to prevent its security infrastructure from being compromised; and that LayerZero had previously reviewed and approved Kelp's deployment and configuration in writing.Officials stated that LayerZero has publicly attributed responsibility to itself in recent months. Since the occurrence of the attack, the team has taken action to ensure the safety of user assets, including migrating the rsETH cross-chain bridge to a more secure cross-chain standard.LayerZero co-founder and CEO Bryan Pellegrino tweeted that KelpDAO's related claims lack basis and that he will respond and defend in Vancouver.Previously, LayerZero released an incident report indicating that on April 18, 2026, the KelpDAO rsETH cross-chain bridge built on LayerZero was attacked, resulting in a loss of approximately 116,500 rsETH, valued at around $292 million.

According to Catcher Predict monitoring, in the market prediction on Polymarket for the event "The United States Announces the End of the Iran Blockade," the sub-market "October 15" for the "Yes" option has experienced a sharp fluctuation in winning probability, dropping from 49.5% an hour ago to the current 18.5% (a fluctuation of 31%). Please note the impact of related breaking news.

According to Bloomberg, sources have revealed that U.S. federal prosecutors are investigating whether Binance Holdings Ltd. violated U.S. sanctions against Iran by failing to prevent certain transactions on its platform.The investigation into Binance's compliance is being handled by the Manhattan U.S. Attorney's Office. One source also noted that the Criminal Division of the U.S. Department of Justice in Washington is involved in the case, and authorities are focusing on whether Binance knowingly allowed the relevant transactions to proceed.

According to Gate market data, U.S. stocks opened with the Dow Jones up 0.49%, the S&P 500 index up 0.6%, and the Nasdaq up 0.7%. Intel rose by 8%, Micron Technology rose by 3%, Meta Platforms rose nearly 3%, and Alibaba rose by 1.4%.

On September 21, netizen "Zhang Kangkang kk" revealed on social media that Tang Jie, the founder of Zhipu and a professor at Tsinghua University, filed a complaint on Xiaohongshu regarding a user post. The complaint stated that the post used phrases like "code is pretty much the same as copy, both start with c and steal code" without factual basis, fabricating rumors that Zhipu's ZCode was involved in code theft and plagiarism. It also used terms like "Uncle Tang Jie" to associate Tang Jie with the plagiarism rumors for character defamation, while utilizing AI technology to synthesize Tang Jie's image with anime materials in a defamatory context. The complainant believed the content constituted malicious defamation and commercial disparagement, damaging both Tang Jie's personal reputation and Zhipu AI's reputation, and requested the platform to take down the post and deal with the user who posted it.On the same day, Zhipu announced that it had completed rectifications regarding the safety issues of the independent desktop AI programming client ZCode in response to community feedback and apologized to all users. The company has open-sourced ZCode, handing over the code to community supervision, and will establish a regular product security vulnerability mechanism moving forward. Previously, developers discovered that ZCode had silently uploaded user local repository data without prior notice. On September 18, Zhipu publicly apologized and made an emergency fix, explaining that the root cause was the "repository indexing" feature, which was enabled by default and had no option to turn it off. On September 20, Taiyuan Chengming Technology Co., Ltd. sent a letter to Zhipu, accusing ZCode of unauthorized uploading of company data assets and trade secrets, making claims for rights protection and reserving the right to pursue legal responsibility.

On September 21, the cryptocurrency market continued to warm up, with the global largest Bitcoin treasury company Strategy's Bitcoin holdings floating profit now expanded to 5.02 billion dollars, having previously experienced a floating loss of 10 billion dollars.Strategy currently holds 845,000 BTC and 6.4 billion dollars in reserve assets.

U.S. Republican Senator and Wyoming Federal Senator Cynthia Lummis stated: The Democrats had previously requested that any cryptocurrency project raising more than $25 million from the public provide audited financial statements, and this requirement has been written into the bill.Lummis noted that the Democrats voted against the transparency they had requested. Lummis has served as a Federal Senator from Wyoming since 2021, having previously served as a member of the U.S. House of Representatives from 2009 to 2017.

The Chief Information Security Officer of Slow Fog, 23pds, posted on platform X stating that the black and gray industries have established an attack chain against iOS users: clicking on links to extract private keys and mnemonic phrases; when users access web pages using Safari, they gain JS layer read and write capabilities through WebKit/JSC memory corruption; bypassing PAC to obtain native call capabilities; escaping the WebContent sandbox; escalating privileges in the kernel to gain root access, stealing Keychain and wallet data.The affected versions are iOS 13 to 26.5, and it is recommended that iOS users upgrade as soon as possible.

The founder of Liebit Mining Pool, Jiang Zhuoer, stated in a post that after months of trading, profit in coin-based terms has reached 34%, while profit in U-based terms has reached 92%, nearly doubling. The key to profitability lies in position, trading, and currency. Market sentiment must be involved in trading to truly feel it. We are currently in a bull market cycle, and the personal default position is to hold a full position in ETH spot. Besides several recent short positions, more importantly, it is to hold a full position in spot for the long term; shorting is merely to protect the spot after it rises, reducing the downside pullback.

On Friday, the Bank of Japan raised interest rates by 25 basis points as the market expected. After the announcement of the rate hike decision, the Japanese yen weakened against the US dollar and Bitcoin. The price of Bitcoin, priced in US dollars, remained basically stable.

According to Gate market data, U.S. stocks closed higher on Thursday, with the Dow Jones Industrial Average initially up 0.6%, the S&P 500 index rising 1.1%, and the Nasdaq up 1.69%. SK Hynix rose 4.6%, Nvidia increased by 2.5%, AMD rose 6%, and Intel was up nearly 7.6%. The Nasdaq Golden Dragon China Index rose 0.16%, Alibaba increased by 1%, and Bilibili fell by 3%.

On September 14, 2026, Judge Arun Subramanian of the United States District Court for the Southern District of New York issued an opinion and order denying the plaintiff's motion for a preliminary injunction. The case number is 1:26-cv-05474-AS, with the plaintiffs being market makers Susquehanna Securities, LLC and Susquehanna Investment Group, and the intervenor being market maker Citadel Securities LLC, while the defendants are John Does 1 through 100. The plaintiffs filed the lawsuit on June 29, 2026, claiming violations under Section 20A of the Securities Exchange Act of 1934 and unjust enrichment claims.The plaintiffs allege that the defendants traded on significant non-public information, specifically an announcement on May 22, 2026, regarding "the Chinese government's crackdown on cross-border trading platforms," which led to a collapse of the relevant securities. The plaintiffs sought a preliminary injunction to restrict the 40 defendants, as reduced, from transferring, encumbering, removing, or otherwise disposing of the profits obtained through the alleged insider trading activities in their accounts at third-party brokerage firms, or sought a seizure order. The court found that the plaintiffs failed to demonstrate the elements necessary to prove that they may suffer irreparable harm, and the motion was denied.

According to Catcher Predict monitoring, in the market prediction event "LoL: Top Esports Matchup Fearless Game LPL Regional Finals Playoffs" on Polymarket, the "Yes" option for the sub-market "Any Player Quadra Kill" has experienced a significant fluctuation in winning probability, soaring from 34% an hour ago to the current 50% (a fluctuation of 16%). Please note the impact of related breaking news.

On September 16, local time, the United States International Trade Commission (ITC) announced that it has launched a patent infringement investigation into certain electronic devices equipped with specific audio technology. The subjects of the investigation include Samsung Electronics and its U.S. subsidiaries, Apple Inc., and Google LLC. The initiation of the investigation itself does not constitute a determination of patent infringement.The investigation is based on a complaint submitted by BoomCloud 360 Inc. on August 14 and supplemented on August 31. The complainant alleges that the relevant devices infringe its patents when imported into and sold in the United States, violating Section 337 of the Tariff Act of 1930, and requests that the ITC issue a limited exclusion order and a cease-and-desist order.The case will be assigned to an administrative law judge for a hearing on the evidence, which will make a preliminary determination on whether Section 337 has been violated, followed by a final decision after review by the ITC. The ITC will set a target date for completing the investigation within 45 days of the filing. The relief order will take effect immediately and become a final order after 60 days, unless the U.S. Trade Representative disapproves it for policy reasons within 60 days.

On September 17, WEEX TradFi market data showed that the Federal Reserve raised interest rates by 25 basis points, and the three major U.S. stock indices closed lower. After the interest rate hike expectations were realized, funds flowed back into the AI chip and optical communication sectors, with mixed performance in the storage sector. Specifically, chip stocks generally rose, with INTC up 4.03%, AMD up 1.65%, and NVDA up 0.82%; optical modules generally rose, with LITE up 9.59%, COHR up 6.92%, MRVL up 3.61%, and NOK up 3.05%; the storage sector showed divergence, with STX up 1.47%, WDC up 1.22%, MU down 0.11%, and SNDK down 0.71%.WEEX Labs believes that while the index is under pressure, the optical communication and some chip sectors are recovering in parallel, indicating that after the interest rate hike, funds are more willing to trade the oversold AI hardware sector, and the structural divergence is more noteworthy than the index direction. Today's focus is on the interest rate path pricing after the dot plot and whether the transaction in optical modules can turn the rebound into a trend.

According to data submitted by the Korean National Police Agency to Democratic Party member Yoon Kyun-young's office, as of September 15, the Gangwon Provincial Police Agency's Cyber Investigation Team has initiated investigations into 26 Polymarket users, with 18 of them referred to the prosecution. The total betting amount involved is approximately 17.6 billion Korean won, with the highest individual bet being around 5.7 billion Korean won. The police believe that the trading activities on Polymarket clearly constitute illegal gambling.The Korean authorities identified and tracked these users by analyzing publicly available blockchain transaction records using open-source intelligence technology. The Korea Communications Standards Commission decided to block Polymarket on August 18. The KCSC determined that the platform's betting on uncontrollable events and its "winner takes all" profit model fostered a gambling mentality.