Retraction notice to: "Do implied volatilities of stock and commodity markets affect conventional & shariah indices differently? An evidence by OVX, GVZ and VIX"(Heliyon, (2023), 9, 11, (e21094), (S2405844023083020), 10.1016/j.heliyon.2023.e21094)

This article has been retracted: please see Elsevier policy on article withdrawal (https://www.elsevier.com/about/policies-and-standards/article-withdrawal). This article has been retracted at the request of the Editor. Post-publication, an investigation conducted on behalf of the journal by Elsevier's Research Integrity & Publishing Ethics team discovered suspicious author affiliations/areas of research that do not appear to reflect the subject area of this article. Furthermore, The team found a significant increase of citations to papers published by the authors, Syed Ahsan Jamil, and Mustafa Raza Rabbani, between the original submission and the revised version of this article. In summary, 13 papers by the author were cited in the original version of the article. This increased to 15 papers in the revised version of the article and 18 in the published manuscript. Elsevier's Research Integrity & Publishing Ethics team reached out to the authors for an explanation and evidence of their contributions to the study, but they failed to provide a satisfactory response. The Editor has determined that the authorship cannot be relied upon and has lost confidence in the results and conclusions of the article and has determined it should be retracted. The authors disagree with retraction and dispute the grounds for it.