I have bought at $450 and i will sell it a week or few days before the halvening. Because i think price will be too volatile during halvening.
Probably a good estimate, the price will -likely- go up, but it will be fairly insane to track the markets during the halving. People are going to be moving their money left and right, and this could allow for some opportunities where you can sell for a lot of money and then back away until everything settles down and everything gets back to normal and everyone settles in with the new value of Bitcoin, be it up or down in value.
a good option to sell before halving, more precisely when approached halving. because possibility when it the price will increase because more people are buying bitcoin, but if after halving, I was worried there would be a big dump, because many people are waiting for the price increase.