Crypto markets spent the past 24 hours balancing ETF flow data, shifting rate expectations and a fresh batch of regulatory and infrastructure developments. U.S. spot Bitcoin ETFs posted $201.9 million in net outflows on Aug. 28, ending a nine-session inflow streak that began in mid-August. Spot Ether ETFs moved the other way, taking in $102.1 million that day and stretching their run of positive flows to 10 straight sessions. According to SoSoValue, weekly flows still remained strong for both products, with Bitcoin funds adding $924 million over the Aug. 24-28 trading week and Ether funds bringing in $824 million. Macro pressure also remained in focus. Bitcoin held near $78,000 while the dollar strengthened and the yen slipped through 160 against the U.S. dollar. Ahead of Friday’s U.S. nonfarm payrolls report, CME FedWatch data showed traders assigning better-than-even odds to two Fed rate hikes this year. In parallel, Bank of England Governor Andrew Bailey warned G20 finance officials that frontier AI models could magnify cyber risks and expose already stretched financial markets to more severe disruptions. Elsewhere, Ireland moved to exclude crypto from a planned tax-advantaged investment account, Japan’s Financial Services Agency proposed easing reporting rules for trust-based stablecoins from fiscal 2027, and several market structure stories landed at once, from DTCC’s tokenization timeline and CME’s new crypto indexes to exchange inflows, venture financing, and fresh security incidents on Fogo and Cronos.

According to BlockBeats, on September 1, ARK Invest, led by Cathie Wood, purchased Block Inc. (XYZ) shares worth $37.4 million and Circle (CRCL) shares worth $3.4 million on Monday. The combined value of the two purchases is approximately $40.8 million.

Spot Bitcoin exchange-traded funds posted net inflows of $924 million during the Aug. 24 to Aug. 28 trading week, according to SoSoValue. BlackRock’s IBIT led all products with $938 million in weekly net inflows, lifting its cumulative historical net inflow to $63.36 billion. Grayscale’s Bitcoin Mini Trust BTC ranked second with $81.8297 million in weekly net inflows and $2.86 billion in cumulative inflows. On the outflow side, Ark & 21 Shares’ ARKB recorded the largest weekly net outflow at $85.1412 million, while its cumulative historical net inflow stood at $1.32 billion. As of publication, total net assets across spot Bitcoin ETFs were $97.59 billion. The ETF net asset ratio, measured as the share of Bitcoin’s total market capitalization, reached 6.28%, and cumulative historical net inflows for the category climbed to $54.63 billion.

The team behind Zakura, a full-node client for Zcash, has released Zakura Common, a cryptography and protocol library built for the Zcash ecosystem, according to ChainCatcher. Official benchmark results show major performance gains across several workloads. On mobile devices, proof generation was more than 14 times faster, while desktop proof generation improved by more than 5 times. The benchmarks also showed Sinsemilla hashing running more than 21 times faster, trial decryption improving by more than 1.5 times, and zk-SNARK verification speeding up by 4x to 8x. In many cases, the wait time for wallets to create transactions was reduced from more than 3 seconds to under 200 milliseconds. The upgrade does not require a network upgrade. The codebase has been open-sourced under dual MIT and Apache 2.0 licenses, and Zakura 1.3.0 will move to this technology stack.

Zakura, the team behind the Zcash full-node client, has released Zakura Common, a library that supplies cryptographic and protocol functions for the Zcash ecosystem. According to official benchmarks released with the announcement, the new library delivers significant performance improvements. Mobile proof generation speed is now more than 14 times faster. Desktop proof generation speed is more than 5 times faster. Sinsemilla hashing speed is more than 21 times faster, while trial decryption speed is more than 1.5 times faster. zk-SNARK verification speed improves by a factor of 4 to 8. In many cases, the time it takes to create a transaction in a wallet can be reduced from more than 3 seconds to under 200 milliseconds. The improvements do not require a network upgrade. Zakura Common is available as open source under the dual MIT and Apache 2.0 licenses. Zakura 1.3.0, the upcoming version of the client, will switch to this technology stack.

Based on the latest data from crypto analytics firm SoSoValue, Bitcoin spot exchange-traded funds (ETFs) experienced a combined net outflow of $202 million during the trading day on August 28 (U.S. Eastern Time). Among the tracked products, Morgan Stanley's MSBT ETF recorded the strongest net inflow of $9.3385 million for the day, pushing its historical cumulative net inflow to $490 million. On the opposite end, Ark Invest and 21Shares' ARKB ETF saw the highest net outflow of $115 million, with its cumulative net inflow since inception now standing at $1.319 billion. As of the time of writing, the total net asset value of all Bitcoin spot ETFs was $97.593 billion, according to SoSoValue. The ETF net asset ratio, which measures the proportion of Bitcoin's total market capitalization represented by these funds, stood at 6.28%. Furthermore, the historical cumulative net inflow across the entire category has reached $54.631 billion. These figures provide a snapshot of capital flows within the Bitcoin spot ETF market, showing that while there was an overall net outflow, certain funds continued to attract significant inflows. Notably, the performance gap between MSBT and ARKB highlights the divergent investor preferences in the current market environment.

Kalshi has disclosed in a new U.S. Securities and Exchange Commission Form D filing that it has raised about $1.12 billion through private equity sales since April 3, including its $1 billion Series F round completed in May. The filing also shows the company has authorization to raise roughly $1.5 billion in total, leaving about $380 million in remaining capacity. At the same time, reports cited in the source say Kalshi is in deep talks on a new $750 million financing led by Sequoia Capital and Wellington Management at a targeted $40 billion valuation. If completed at that level, the company’s valuation would have climbed sharply from the $22 billion attached to its Series F round less than three months earlier. The source also said Kalshi posted $40 billion in trading volume in July, well above the combined $12.9 billion recorded by Polymarket and Polymarket US. The report framed Kalshi’s regulated structure under the Commodity Futures Trading Commission as a key distinction from competitors and noted that investors are also watching the company’s IPO plans, revenue trajectory, and legal risks, including a lawsuit filed in Connecticut on Aug. 27 over sports contracts.

ARK Invest founder Cathie Wood recently sold about $4 million worth of Tempus AI shares, according to Techub News. The sale came after the stock had risen 38%. Crypto Briefing said the move was seen as a strategic adjustment aimed at managing fund liquidity during a period of investor outflows and market volatility. The report did not disclose additional details about the timing of the transaction beyond saying it was recent, nor did it provide the number of shares sold. The brief update centers on the size of the sale, the prior gain in Tempus AI, and the view that the reduction was tied to liquidity management rather than a broader explanation beyond what was cited.