The Portuguese Securities Commission has published four quick guides explaining key financial instruments: shares, bonds, undertakings for collective investment in transferable securities (UCITS), and PRIIPs in the form of notes or structured bonds. The guides are designed to give investors straightforward information on what these instruments are, their main advantages, risks and costs, and what information should be reviewed before investing. CMVM frames the publication as part of its work to promote financial literacy and support informed investment decisions.