A series of securities fraud investigations have been announced for multiple companies, including Huntington Ingalls Industries, Inc. (HII), FTAI Aviation Ltd. (FTAI), Cardlytics, Inc. (CDLX), PVH Corp. (PVH), and TELUS International (Cda) Inc. (TIXT). Investors who have incurred losses are encouraged to contact law firms such as Glancy Prongay & Murray LLP and the Law Offices of Frank R. Cruz for assistance. The investigations into FTAI Aviation have gained particular attention following a short report by Muddy Waters, which led to a 40% decline in the stock price. Despite this, Compass Point has recommended buying FTAI, arguing that the short report's claims are largely unfounded. Other companies under investigation include Signet Jewelers Limited (SIG), with reports highlighting concerns over the shift to lab-grown diamonds impacting the traditional diamond market.