Bitcoin halving would affect greatly in the standing and value of Bitcoin in the market, simple concepts about supply and demand indicates a decrease in supply causes an increase in demand and would make the price of Bitcoin to also increase due to the fact that Bitcoin halving is the literal halving of what the miners would get from mining.

I think, there would be a lot of people that would invest in Bitcoin and would hold the currency during and after the halving for a chance to sell it to a higher price and earn a lot of profit from it.