NANTERRE, France — Bobby Finke and the U.S. women set world records in the 1,500-meter freestyle and 4×100-meter medley on Sunday, adding final touches of glory for Americans, who suffered a relative collapse in the gold market but still took home the most medals from this quadrennial swim meet.

The U.S. made 28 visits to the Paris La Défense Arena podium, but Americans were only on the top step eight times.

While both numbers were more than any other nation, it was a slight step back by…