The statement is strongly supported by consistent and corroborating evidence from multiple, independent sources. The most authoritative source, Bespoke Investment Group, a financial research firm, explicitly states in two separate reports that the Stoxx 600's seven-month winning streak is its longest since May 2013. This primary claim is independently echoed by The Kobeissi Letter, a financial commentary service, across several of its social media posts on X and Facebook. Further corroboration is provided by a LinkedIn post from a financial professional. While one source from Bespoke only offers weak support by confirming a positive month without specific details, and the Bloomberg link is irrelevant, there is no contradictory evidence among any of the provided materials. The consensus across high- and medium-authority sources makes the statement highly credible.