The focus of investors is on US inflation data this week, as well as corporate results. The Nasdaq 100 hit a new record close yesterday, surpassing March 24 by 3 points. The index is a mirror of the tech sector, but also of investors' appetite for risk. It has increased its gains to 8.9% since January 1. Elsewhere, many indices are exploring or approaching uncharted territory, which reinforces overall confidence.