A sell-off in AI stocks and rising oil prices weighed on US stocks, with the Nasdaq recording its worst weekly performance since June.

According to DefiLlama data, Papertrade’s revenue on October 17 dropped to $890,000, ranking 7th among all global protocols, marking an 83% month-over-month decline. The platform had previously overtaken Circle to claim the second spot overall. Separately, per Papertrade’s official data, its trading volume on October 17 (counted by UTC calendar days) hit approximately $542.3 billion, down 43% from $965.2 billion on October 16, and 90% lower than its peak of $5.6423 trillion on October 10. Both transaction count and new account additions saw synchronized declines: on October 17, transaction volume stood at 135,227, a 40% drop from 226,541 the prior day; new accounts totaled 622, down 53% from 1,322 the day before.

According to HTX market data, Bitcoin has broken through the $82,000 mark, with a 0.52% gain in the past 24 hours.

HIP-3 market deployer Paragon spent 570.98 HYPE (approximately $45,000) to acquire the PAPER code, and is reportedly set to launch Papertrade (PAPER) perpetual contracts. Papertrade is an on-chain synthetic perpetual contract trading platform built on HyperEVM, offering up to 1000x leverage. Its PAPER token is minted from users' realized trading losses, with no pre-mining, team, or venture capital allocations.

Beating AI News: AI coding tool OpenCode has disclosed a security incident affecting 1.4% of its Console users. All affected users had linked third-party model services via the cloud. Public notifications from users show an old system slated for deactivation was accessed without authorization, potentially exposing OpenAI, Anthropic, and other API keys stored in workspaces. The OpenCode team has sent emails to affected users. OpenCode offers both local coding tools and an optional cloud-based Console service. Users can entrust their API keys to the Console for it to call models on their behalf, allowing team members to share these models without accessing the original keys directly. Once attackers obtain these keys, they can bypass user login to directly call paid models, with charges billed to the original account holders. A Reddit user reported $400 in unauthorized calls to their Anthropic account. OpenCode linked the incident to "large-scale model distillation attacks" — a practice of collecting responses from one model in batches to train another model with that data. If attackers steal a large number of API keys, they may use others' accounts to collect training data, shifting high model call costs onto the original users. OpenCode is collaborating with Anthropic, OpenAI, and Google to resolve the incident. Anthropic's Lydia Hallie stated the company has revoked potentially affected Claude API keys. OpenCode is urging affected users to visit the respective model service providers' backends to revoke and replace their keys, and check for recent abnormal calls.

This gambler's $ETH long was also fully liquidated 5 hours ago, resulting in a $1.08M loss. He still holds a long position on 1,355.6 $BTC ($110.85M), with a liquidation price of $80,035.7. But he has set a stop-loss at $80,500.

On-chain analyst Ai Yi (Twitter handle @ai_9684xtpa) has monitored that the whale address 0x77d…ae0e9, which ranks among the top three in ETH holdings on Hyperliquid, has an unrealized loss of $9.493 million on its ETH long positions, making it the address with the largest unrealized loss on ETH on the platform. This address opened 13x leveraged ETH long positions starting September 21, and has since reduced its position by 8,250 ETH, booking a realized loss of $2.277 million. It currently holds 40,268.75 ETH in long positions, with a position value of approximately $97 million, an average entry price of $2,646.05, a liquidation price of $2,290.99, and the current ETH price is about $116.51 above its liquidation price.