Should I sell my majestics?

I have like hundreds, should I sell my majestics while they're increased in price or could they increase more?

yes

They could increase more but remember that once something peaks and it is ridiculously over inflated, they can collapse within hours. If you've made loads of profit already then don't be greedy and cash in on that right now. Or compromise and sell half or two third of your stock right now and keep the rest.

If you've got hundreds, I'd sell a fair few of them whilst you can.

I wouldn't risk a potential slump after double credits has ended tbh. Maybe best to hang on to a dozen or so, why not? :P

Well throne sofas are more than majestics at the moment so I would hang onto them for a bit

I would keep them right now to be honest! How many total do you have?

Keep some and sell some, sell as many as you can/you're willing to let go while they're high :P

dump them before 2x credits ends and the market crashes.