What Is a Put Option in M&A?
A put option gives the holder the right — but not the obligation — to sell an asset (typically shares) to a specified counterparty at a predetermined price within a defined timeframe. In M&A, put options serve as exit mechanisms in joint ventures, shareholder agreements, and minority investments, allowing holders to force a sale of their stake under specified conditions.
Put options are the mirror image of call options. While a call gives the holder the right to buy, a put gives the holder the right to sell. Together, they create the contractual framework for managing entry and exit in M&A structures.
Common Uses in M&A
Minority Investor Exit
A minority investor negotiates a put option requiring the majority shareholder to purchase their stake at a predetermined price or formula if certain conditions are met:
| Trigger | Purpose |
|---|---|
| Time-based | Put exercisable after a fixed period (e.g., 5 years) |
| Performance failure | Put triggered if the business misses agreed milestones |
| IPO failure | Put exercisable if no IPO occurs within a specified period |
| Change of control | Put triggered if the majority shareholder changes |
| Deadlock | Put exercisable if shareholders cannot resolve a governance dispute |
Joint Venture Exits
Put and call options are standard exit mechanisms in joint ventures:
- Reciprocal puts — either party can force the other to buy their stake
- Russian roulette — one party names a price and the other must either buy at that price or sell at that price (ensuring fair pricing)
- Texas shoot-out — both parties submit sealed bids; the higher bidder buys the other’s stake
Tag-Along as a De Facto Put
Tag-along rights function as a conditional put — if the majority shareholder finds a buyer, the minority can “tag along” and sell on the same terms. This protects minorities from being stranded in a company with a new controlling shareholder.
Earn-Out Protection
Sellers receiving earnout consideration may negotiate a put option over their rollover equity, exercisable if the buyer’s conduct frustrates the earnout. This provides a downside exit if the relationship deteriorates post-closing.
Pricing Mechanisms
Put option exercise prices in M&A typically use:
- Fixed price — set at the time the put is granted (common for short-duration puts)
- Formula-based — tied to a multiple of EBITDA, revenue, or book value
- Fair market value — determined by independent valuation at the time of exercise
- Original cost plus return — the investor’s cost basis plus a minimum IRR (e.g., cost plus 8% per annum)
Negotiation Dynamics
For the Put Holder (Minority/Seller)
- Lower exercise price is acceptable if the put provides certainty of exit
- Multiple triggers increase the likelihood the put can be exercised
- Specific performance enforcement rights ensure the put is meaningful (not just a damages claim)
For the Put Writer (Majority/Buyer)
- Narrow triggers limit the situations where the put can be exercised
- Fair market value pricing avoids overpaying at exercise
- Funding caps ensure the put obligation is within the writer’s financial capacity
- Transfer restrictions prevent the put holder from assigning the right to a hostile party
Accounting and Tax Treatment
Put options over equity create accounting complexity:
- Under IFRS, a put option written by a parent over non-controlling interests may require the NCI to be derecognised and a financial liability recognised at the present value of the exercise price
- The tax treatment of put option premiums and exercise proceeds varies by jurisdiction and must be considered in structuring
APAC Context
Australia — put options in shareholder agreements of Australian companies are enforceable, though the Corporations Act’s financial assistance provisions may apply if the target company itself is funding the put obligation. ASIC guidance requires disclosure of put arrangements over listed securities.
India — the Reserve Bank of India permits put options in shareholder agreements involving foreign investors, provided the exercise price is determined at fair market value (not a guaranteed return). This “no assured return” requirement means that fixed-price puts for foreign investors are generally prohibited in India, making formula-based pricing essential.
Japan — put options are commonly used in Japanese joint ventures and minority investments. The tax treatment of put option exercise in Japan depends on whether the transaction is characterised as a transfer of shares or an equity redemption, with different implications for withholding tax and capital gains.
“Put options are the minority investor’s ultimate protection — the ability to walk away on predefined terms,” notes Daniel Bae, founder of Amafi. “In APAC, where regulatory constraints on pricing mechanisms vary dramatically — particularly in India — structuring enforceable puts requires jurisdiction-specific expertise.”
Structuring minority investments across Asia Pacific? Amafi helps companies and investors design exit mechanisms and deal structures. Learn more.