The BrickIndex is a chart that displays the top performing LEGO sets on eBay over the past six months. By utilizing the licensed eBay Terapeak data, we are able to show the LEGO investor and collector the current hot LEGO sets and popular trends in the LEGO secondary market. This data helps a LEGO investor and collector make intelligent investment choices when purchasing new and retired LEGO sets. We have separated the BrickIndex charts into the main LEGO themes and an "overall" Top 20 performing LEGO set page.