Home / Notes / October 16, 2026

Note as at October 16, 2026

The unusual facts of the week, read off the regulators registers.

• Several funds opened a position on Porr AG in the same week: Citadel Advisors LLC, Marble Bar Asset Management LLP, Syquant Capital.
• Nobody is betting against Alpha TAU Medical LTD any more.
• The total short position on Viridien went from 3.32% to 10.35% in three months.
• Marshall Wace LLP was the busiest fund of the week, with 17 filings.
• Several funds opened a position on Alfen N.V. in the same week: Citadel Securities (Europe) Limited, Two Sigma Investments, LP.
• Nobody is betting against JENOPTIK Aktiengesellschaft any more.

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