Is the markets open throught xmas or are they closed for the main ohlidays?
Open same hours, but you wont be able to trade really from 23rd Dec to 4th/5th Jan
put it that way, you would be able to trade, but most brokers widen the spread between the holidays, while the same time liquidity is low.
why to push your luck when the probabilities stucked against you?
take a break, enjoy the holiday, and start to trade fom the 3rd Jan 
just like most other traders do!
What I know is that it’s risky to trade in the last half of december…
closed on 24th as Xmas is over the weekend.