Is Gift ± Finished? Yes — Complete in 26 Volumes
Yes — Gift ± is complete. It ended in Japan with 26 volumes; the final volume came out in November 2022.
Everything below reflects the Japanese edition — the source of truth that runs months or years ahead of English releases — computed from official publication records.
Volumes in Japan: 26 (latest: ギフト± 26, 2022-11)
Next volume in Japan: not yet announced in Japan.
Status: Yes — Gift ± is complete. It ended in Japan with 26 volumes; the final volume came out in November 2022.
Serialized since: 2015