Billy closed 2025 at #1,068 on the boys' board: 203 boys, 0.012% of the market. The ten-year move is -19% (-79% over thirty); it peaked in 1934 at 9,562 boys (#20 that year), and has moved 384,228 units since first listing in 1880. It trades on both boards — the toggle up top swaps the desk to the girls' board.
Billy closed 2025 at #7,554 on the girls' board: 14 girls, 0.001% of the market. The ten-year move is unquotable — no 2015 print to mark against (+53% over thirty); it peaked in 1930 at 166 girls (#526 that year), and has moved 5,431 units since first listing in 1899. It trades on both boards — the toggle up top swaps the desk to the boys' board.
The static quote above is the 2025-release close. For the live desk — multi-name compare, range tabs, year-by-year scrubbing — open the listing in the terminal.