(CNBC) — Competition in the housing market finally began to cool this year, as listings multiplied and price gains moderated. Bidding wars became less frequent and spring sales perked up a bit. Well, forget that. The heat is on yet again.

The housing shortage that fueled competition and resulted in sky-high price gains throughout 2017 and the first half of 2018 is on the horizon yet again. Supply is soon expected to drop and potentially hit a new record low, according to realtor.com, after increasing in the second half of last year.

Note: Read our discussion guidelines before commenting.