why not "will likely take" but "will likely be taking"? Either is possible. The continuous emphasises the duration. A few days can be a long time on the stock market.
"will be taking", as used above, is sometimes called the descriptive use of the future progressive. It asks us to imagine on-going circumstances during the period in time when the action will be in the process of taking place, not just to imagine that the action will take place. "the week ahead" does mean "the week right after this week". "for some of the week ahead" does n
Are you sure you didn't mean to say "the bull will likely be taking a vacation for at least some of the weeks ahead?"
The above sentence sounds more natural to me. Then it would mean out of the several weeks coming up next, the bull will take a vacation on some of them. The writer is speculating that the stock market will not be a