What's the Parent Stock Really Worth After a Spin-off?
When a company carves a valuable division into a subsidiary but keeps the stake instead of distributing shares to shareholders, investors often feel shortchanged — and the market agrees. Since shareholders don't get subsidiary shares outright, the market rarely gives the parent full credit for its retained stake. This gap is called a holding company discount, commonly 20% to 40%. Parent stocks can drop double digits once a carve-out is announced.
This calculator takes core business value — pre-spinoff cap minus subsidiary value — and adds the subsidiary's contribution after your discount rate, producing a theoretical cap and fair value per share. Actual price also depends on demand and sentiment, so treat this as a theoretical reference, not a target.
Frequently Asked Questions
Shareholders don't get subsidiary shares directly, and the market often discounts the parent's retained stake.
The market typically discounts a parent's stake in a separately traded subsidiary by 20% to 40%.
No, actual price also reflects demand, sentiment, and earnings outlook — treat this as a reference only.