Suggested message to them: "Your NXT monthly return series has two data errors: (1) June 2024 is listed as +205.26% but should be approximately -15% based on daily closes ($55.17 → $46.88); (2) the series includes monthly returns dating back to 2007, predating Nextracker's Feb 2023 IPO — that pre-IPO data belongs to a different company that previously held the NXT ticker and should be purged. Please recompute Sharpe/Sortino/Omega/Calmar/Martin from a corrected, IPO-bounded series rather than relabeling another ticker's output."

had previously asked to have ticker SFD.TO reviewed and changed to NXT and Anthropic noticed some irregularities when comparing the numbers to those from Stooq.com.

thank you.

Hi, no sure I'm getting what data errors you are talking about here's the data for NXT (the series is IPO-bounded to Feb 9 2023 and June 2024 is −15.03%):