You own two value streams:
1) Core online marketplace - $30/share
2) $Z eating the RE transaction pie over time - $30/share from Homes + free option on other services
(1/x)
This is a 2-sided network at scale that is near-impossible to duplicate once established. Buyers and sellers are extremely fragmented and the existence of Zillow has meaningfully improved consumer lives.
Earn revenue from providing leads to RE agents. (2/x)
Buying a home has massive transaction costs, namely 1) RE agent commissions, 2) mortgage origination costs, 3) title & escrow services, and 4) physically moving stuff.
$Z is going to eat more of this pie while making it smaller. (3/x)
1) Commoditizes RE agents over time
2) Gives $Z a right to win all adjacent transaction services
1) RE agents are in the business of aggregating buyers for a seller, or vice versa. $Z does this better. (5/x)
RE agents today suck out 4-6% of every transaction in fees. $Z can drive this down to 2% and take the delta. (6/x)
Virtuous cycle - if an RE agent can make more or similar money as $Z agent with less work, more will move to $Z, further driving down cost. (7/x)
Suddenly, all these buyers and sellers are using $Z more actively given $Z is a part of the transaction. Today, RE agents drive the title insurance purchase decision. Tomorrow, $Z drives it, and it drives that purchase to itself. (8/x)
Marketplace -- $30 per share intrinsic value throwing off ~4-5% FCF yield over 8-10 years
Homes -- also $30 per share intrinsic value throwing off 3-4% FCF yield over 8-10 years (more back-dated FCF)
(9/x)
(10/x)
Meanwhile, I haven't modeled any value from the significant growth potential of mortgage origination or title & escrow. (11/x)