How to read the band →
Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Ivy
Ivy has been climbing in recent years. All-time it's been given to 92,893 U.S. babies, the 116th most common name by sound today, peaking at 5,725 in 2024, with 5,406 in 2025.
By sound, Ivy also includes the spellings Ivey.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).