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More →NVDA off-exchange short sale volume reported at 39.8%
CoinWorld US stock data: NVDA's off-exchange short selling volume accounted for 39.8% of the total that day. This was flat compared with the same-caliber snapshot 24 hours earlier, and down 8.4265 percentage points compared with the same-caliber snapshot 7 days earlier.
Wall Street's emergency mechanism for dealing with Black Monday 2.0
Coin World data: Coin Bureau mentioned that if Black Monday 2.0 occurs, Wall Street has three emergency mechanisms: 1. Before the S&P 500 falls 7%, all U.S. stock trading is halted for 15 minutes. 2. Before a 13% decline, trading is halted again for 15 minutes. 3. If the market falls 20% at any time, trading stops until the end of the day. In addition, S&P 500 futures are limited to a 7% move during overnight trading. Unlike Black Monday in 1987, these mechanisms did not exist at that time. On October 19, 1987, the Dow Jones Industrial Average plunged 22.6%, the S&P 500 fell 20.5%, and the Nasdaq dropped 11.4%, wiping out about $500 billion in market value. When the Hong Kong stock market reopened after being closed for four days, the Hang Seng Index plummeted 33%. Wall Street added circuit breakers in 1988, they were first triggered in 1997, and the rules were tightened in 2013. In March 2020, circuit breakers were triggered four times within eight trading days. Now, stocks trade 24/7 on crypto exchanges as tokens and leveraged bets, with no circuit breakers. Last Saturday, while U.S. markets were closed, $51.6 million in leveraged chip-stock bets were liquidated within 10 minutes.
The long-to-short account ratio for SOL perpetual contracts is 2.52.
CoinWorld data: The SOLUSDT 4-hour long-short account ratio is 2.52, with more net long accounts than net short accounts. Compared with the same-caliber snapshot 24 hours ago, it rose by 0.0343; compared with the same-caliber snapshot 7 days ago, it rose by 0.1045.
The report shows that AI-enabled traditional medicine has entered a period of rapid development.
According to a report from Bijie.com, AI empowerment of traditional medicine has entered a period of rapid development. On October 18, the "Report on AI Empowering the Development of Global Traditional Medicine" was released at the 2026 World Traditional Medicine Conference. The report concludes that AI empowerment of traditional medicine has entered a period of rapid development. The report shows that in the field of AI empowerment of traditional medicine, the number of publicly disclosed related patents worldwide has reached 3,030 since 2000, with China firmly in first place at 80.4% of public disclosures and 84.2% of grants; in terms of related paper output, China has contributed about 47% of the SCI literature published worldwide since 1990.
The long-to-short account ratio for ETH contracts is 2.96.
CoinWorld data: The ETHUSDT 4-hour long/short account ratio is 2.96, with more net long accounts than net short accounts. Compared with the same-caliber snapshot 24 hours ago, it rose by 0.0754; compared with the same-caliber snapshot 7 days ago, it rose by 0.011.
BTC contract long/short account ratio (October 18, 2026, 16:00) is 1.68
CoinWorld data: The BTCUSDT 4-hour long-short account ratio is 1.68, with more net long accounts than net short accounts. Compared with the same-caliber snapshot 24 hours ago, it is down 0.0467; compared with the same-caliber snapshot 7 days ago, it is up 0.2308.
Jeff Yan: The United States should focus blockchain regulation on the application layer.
Hyperliquid Labs co-founder Jeff Yan argues that the United States should establish rules protecting blockchain and suggests that regulatory responsibility should fall on the application layer rather than the network layer, in order to help Hyperliquid enter the Wall Street market. He stated that Hyperliquid is not yet open to U.S. customers and is positioned to provide underlying trading technology for traditional financial institutions rather than to replace existing market participants.
a16z: AI does not threaten modern cryptography, but may accelerate security reviews.
According to a report by Bijie, a16z crypto and Stanford cryptography professor Dan Boneh and others pointed out that OpenAI's latest mathematical results do not prove that existing cryptographic systems such as elliptic curves have become more vulnerable, nor have they discovered new algorithms that can efficiently break core cryptographic problems. Compared with directly breaking cryptography, the more realistic impact of AI is to greatly accelerate the verification of cryptographic assumptions, vulnerability discovery, and software security testing, significantly shortening review cycles that in the past might have taken years. At the same time, post-quantum migration and cryptographic agility remain key to addressing the uncertainties of future AI and quantum computing.
A whale withdrew 10 million ARB from Bybit, worth $1.82 million.
CoinWorld data: According to Arkham monitoring, whale address 0x204 withdrew 10 million Arbitrum (ARB) tokens from Bybit on October 2, worth approximately $1.82 million. In addition, the address had previously withdrawn about 73,400 Uniswap (UNI) tokens, with a total value of approximately $2.34 million. Notably, Arbitrum unlocked over 90 million ARB tokens yesterday. Despite the ongoing token unlock pressure, the ARB price has still risen sharply recently and has remained at elevated levels over the past month.
QQQ off-exchange short sale volume reported at 71.26%
BiJie Network US stock data: QQQ's off-exchange short-selling volume accounted for 71.26% of the total that day. This was flat compared with the same-caliber snapshot 24 hours earlier and up 16.87 percentage points compared with the same-caliber snapshot 7 days earlier.