Bank One Ballpark was renamed Chase Field following months of speculation that the Diamondbacks' home stadium would get a new name. The park that opened in March 1998 also got a new logo -- the octagonal symbol of JPMorgan Chase & Co. superimposed between the Chase Field name and a design resembling the silhouette of the 49,000-seat stadium. The logo features a trestle shape like the top of the ballpark, which has a retractable roof to keep out the sun during Phoenix's triple-digit days of summer, and the team's traditional snake-fangs design in its purple, copper and teal colors.