Johannes Meyer

Johannes MeyerSep 11, 2026

Citadel had signed roughly 70% of its internship offers by mid-October last cycle. Its application portal stayed open into December. That difference between an open application and an available seat matters throughout quant recruiting. Jane Street opened its Summer 2027 roles on 12 July 2026. Last cycle, interview capacity had filled by late October even though applications remained open. Point72 opened the UK cycle on 3 March 2026. Optiver's Amsterdam programme for 2028 graduates closed applications on 1 January 2026. Meet Millennium in Singapore closed registration on 25 February 2026 for a programme feeding into the 2027 internship cycle. Experienced hires face a different timing constraint, with some senior PM restrictions reaching 12 to 18 months. The full article maps recruiting dates, workshops and lateral timelines across the major quant regions. Read the full breakdown: https://lnkd.in/d5WRDE7t

Johannes MeyerSep 9, 2026

Jane Street lost $15bn in July and still generated more than $40bn in net trading revenue for the year. That was the third major crowding event in quant during 2026. In January, Renaissance fell roughly 4% in nine days as a short squeeze forced systematic funds to cover crowded positions. March hit macro and commodities. Millennium lost around $1.5bn in one week, while global macro and CTA strategies also lost money. July hit AI exposure. Situational Awareness fell 67% in four weeks and had to sell roughly $16bn of public equities. Citadel bought most of the portfolio. At the same time, Citadel Securities posted record Q2 revenue of $7.3bn and Hudson River Trading reached $11.4bn. The firms that handled these episodes best had capital available when other investors had to reduce risk. Full breakdown of the seven major stories in today’s article: https://lnkd.in/dPfYJyRM

Johannes MeyerSep 16, 2026

Hedge funds now hold roughly $2tn of US Treasuries, about 7% of the market. A large part of that exposure sits behind leveraged cash-futures basis trades financed through repo. Today the Fed raised rates by 25 basis points for the first time since 2023. That matters because higher repo costs reduce the carry on trades built around spreads of only a few basis points. August was also quiet across the large pod shops. Citadel gained 0.1%, Millennium was flat and Balyasny lost 0.7%. That leaves Balyasny at 0.5% for 2026, against much stronger year-to-date returns at several large peers. At the same time, OpenAI has ruled out a 2026 IPO while Anthropic moves closer to the public markets. Full breakdown in today’s piece: https://lnkd.in/dYEE_iga