If you're not a miner, the halving shouldn't have much effect.  14.5 million of 21 million bitcoins have already been mined. Everybody knows this event is coming, so it should already be priced in.

If you are a miner, then you're running spreadsheets to see what equipment to keep, what equipment to dump, and what equipment to buy. Much of the older gear will be junked at the halving.