Definition
Partial offer risk is the risk faced by shareholders in a partial tender offer: even if they prefer not to tender at the offered price, holding out leaves them as minority holders in a company that is now controlled by the acquirer. The new controller may pay no dividends, restructure the company in ways that disadvantage minorities, or eventually freeze them out at a lower price.
Why it matters
Partial offer risk is the structural reason many jurisdictions impose mandatory bid rules (forcing bids for 100% once a threshold is crossed). The U.S. tolerates partial offers, relying on fiduciary-duty law to police later mistreatment of minorities.
Practical mitigation
In U.S. practice, holders facing a partial offer often:
- Tender into the full extent permitted (knowing pro-rata cutbacks may apply)
- Sell into the open market at the spread to avoid pro-rata risk altogether
- Hold non-tendered shares with the expectation of an eventual freeze-out