0001322436 2023-01-01 2023-06-30 0001322436 evtmbwof:CommonSharesMember 2023-01-01 2023-06-30 iso4217:USD iso4217:USD shares pure shares 0001322436 false N-CSRS Eaton Vance Tax‑Managed Buy‑Write Opportunities Fund Common Shares 116754568 The Fund’s primary investment objective is to provide current income and gains, with a secondary objective of capital appreciation.