CoStar Group, Inc.
Thesis
CoStar Group is positioned to benefit from the growing online auction market through its acquisition of Ten-X, which has a significant market share and superior transaction metrics compared to traditional auctions. The company’s differentiated marketplace strategy and strong historical performance suggest substantial revenue growth potential, particularly in the residential sector, which is currently under-monetized. The valuation is attractive with a target price of $165, representing a 99% upside from the current price.
Did it work?
The long thesis projected ~99% upside to a $165 target, but after 64 months the stock has fallen 61.1%, moving decisively in the opposite direction. Far from monetizing the Ten-X auction opportunity and residential growth to drive substantial revenue expansion, the market severely de-rated the shares, invalidating the core valuation and growth premise. With more than five years elapsed, this is well beyond the thesis's reasonable horizon and the outcome is unambiguous.