Jane Street

The article discusses a shift from using Figma to Claude, an AI tool, for design tasks. It is hosted on Jane Street's blog and has gained traction on Hacker News with 49 points and 25 comments.

Jane Street is planning to build a new data center due to the scarcity of compute power. The article mentions electrical wiring cables at a data center, indicating infrastructure considerations.

Trading firms like Jane Street and Citadel Securities generated $114 billion in revenue last year, expanding into markets previously dominated by banks.

The article discusses the development of strace-ui and Bonsai_term, which are contributing to a resurgence in text user interfaces (TUIs). It highlights the TUI renaissance and the role of these tools in modern software development.

Terraform has accused Jane Street of using a private Telegram group to communicate with Terraform insiders prior to Terra's collapse. The allegations suggest Jane Street may have had advance knowledge through this secret backchannel communication.

Jane Street is accused of using a private Telegram backchannel to unwind hundreds of millions in exposure before Terra's $40 billion ecosystem collapse. The alleged advance access allowed the trading firm to exit positions mere hours before the UST crash.

Allegations of insider trading have surfaced in relation to the Terra collapse, with a Telegram group at the center. The group is linked to Jane Street, and the allegations suggest potential wrongdoing. The incident highlights concerns around market transparency

Prediction market platforms Kalshi and Polymarket face insider trading concerns that could undermine their growth and institutional credibility. The article argues these platforms have financial incentives to implement self-policing measures to become legitimate institutional finance backbones rather than remain retail gambling venues.

Chinese AI company DeepSeek has hired Cui Tianyi, a former Jane Street engineer, to join its new AI agents team as the company seeks to compete in the rapidly evolving agentic AI market. Cui previously co-founded and worked at TSY Capital, a Hong Kong-based quantitative trading firm, and spent nearly nine years at Jane Street before that.

BTC price is stuck under $80k after a flush, with $527 million in long liquidations and a higher-than-expected PPI of 6%. The Fed pivot trade is currently inactive, but there is real demand for BTC and ETH. Long-term holders are sitting on 14.84 million unmoved BTC.

Jane Street has doubled its capacity in Singapore as part of its ongoing expansion. The company's growth is evident in its increasing presence in the region. This move is expected to further establish Jane Street's position in the market.

Jane Street's 71% drop in Bitcoin ETF holdings may be a delta-neutral play, as the company is managing a delta-neutral book and the reduction likely reflects the closing of basis trades as premiums narrowed. The 13F filings only show half the story for firms like Jane Street. This does not indicate a loss of faith in BTC.

Mubadala Investment Company has increased its stake in Bitcoin ETF by 16% to $566 million in Q1 2026. The company now holds 14,721,917 shares valued at $565,616,051. This marks a significant increase in the company's bitcoin exposure, which began in Q4 2024.

Jane Street, a quantitative trading firm, has reduced its Bitcoin ETF holdings by 71%, but the headline is misleading as it doesn't account for short positions and derivatives. The firm uses basis trading strategies, buying spot ETFs and selling BTC futures simultaneously. This strategy is not fully reflected in the 13F filing.

Jane Street reduced its Bitcoin ETF holdings in Q1 2026, including IBIT and FBTC, and added at least $82 million to Ether ETF exposure. This move indicates a shift in Jane Street's investment strategy. The exact implications of this change are not specified.

The article discusses the manipulation of Bitcoin and the control of conversations on online platforms. It mentions the need for change to prevent manipulation by certain groups. The post is from the Reddit community r/Bitcoin.

Jane Street is set to double its office footprint in London as part of a relocation move. The company's expansion plans are highlighted by a trader wearing a Jane Street jacket, signaling their presence in the city.

Jane Street is requesting a court to dismiss Terraform's claims related to the collapse of the UST and LUNA cryptocurrencies. The case stems from the 2022 UST-LUNA crash, which caused significant financial losses in the crypto market.

Jane Street has filed to dismiss a lawsuit from Terraform Labs, alleging insider trading, arguing that the causes of Terra's collapse have already been addressed in prior litigation.

Jane Street has requested a court to dismiss a lawsuit filed by Terraform Labs, which accuses the financial firm of insider trading that led to the collapse of the UST/LUNA algorithmic stablecoin. The legal dispute centers on allegations of market manipulation and the aftermath of the stablecoin's failure.

Jane Street is seeking to dismiss a lawsuit alleging insider trading related to Terraform. The case involves claims of market manipulation, with Jane Street defending its actions. The article references Jane Street's presence at the New York Stock Exchange.