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The deal closing changes the contract, not the headline alone18 minute read
What happens to options when a company is acquired?
Learn how cash, stock, and mixed mergers can change an option deliverable, remove time value, accelerate expiration, and affect exercise and assignment.
Direct answer
An acquisition announcement does not immediately convert or cancel options on the target company. Before the merger becomes effective, the option generally continues to reference the target shares and can reprice with the offer value, closing probability, timing, volatility, dividends, and risk that the deal changes or fails. When the transaction is completed, OCC normally adjusts outstanding contracts to the cash, acquirer shares, or other property payable for the target shares represented by one contract. An all-cash merger can fix the deliverable, end option trading, eliminate remaining time value, and accelerate expiration. The final OCC information memo, not the press release or new ticker alone, controls the contract.
Announcement and completion are different option events
After an agreement is announced, target shares usually keep trading until shareholder, regulatory, financing, and other closing conditions are satisfied. Existing options ordinarily remain contracts on those shares during that period. Their prices can reflect a discounted deal spread rather than assuming the announced consideration will arrive on the announced date.
A higher competing bid can help some calls, while a delay or broken deal can sharply change both calls and puts. Implied volatility, interest, dividends, borrow, liquidity, and the option expiration relative to the expected closing date still matter. A call expiring before an uncertain closing does not automatically receive the future merger consideration.
Completed mergers can replace the share deliverable
OCC states that corporate actions can create adjusted contracts representing something other than 100 ordinary shares. In a stock merger, the deliverable may become a stated number of acquirer shares. A mixed merger may produce cash plus acquirer shares or other property for the target-share amount formerly covered by the contract.
Do not value the adjusted option by multiplying the acquirer's stock price by 100. Record the exact cash, securities, fractional-share treatment, multiplier, strike, option symbol, and effective date in the OCC memo. The strike may remain numerically unchanged even though what is received or delivered has changed.
An all-cash buyout can remove time value and accelerate expiration
When every target share becomes the right to a fixed cash amount, the option generally changes to a fixed cash deliverable. OIC and OCC explain that option trading ordinarily ceases when the conversion becomes effective. Calls above the cash value and puts below it have no intrinsic value under the fixed result, while in-the-money contracts retain only the difference between the cash deliverable and aggregate strike obligation.
Cash-only adjusted equity options are ordinarily subject to accelerated expiration under OCC procedures. A date years in the future can therefore move forward to an OCC-specified expiration. Holders must check the exercise cutoff and exercise-by-exception treatment, while writers can be assigned before the original date. A covered writer may also owe settlement before merger cash reaches the stock position.
Election mergers require an earlier decision
Some mergers let target shareholders choose among cash, shares, or a mixture, subject to election limits and proration. OIC says the adjusted option deliverable is usually based on the consideration paid to non-electing shareholders. A call holder who wants another election generally must exercise early enough to receive shares and then submit a valid shareholder election before its separate deadline.
That sequence involves broker cutoffs, share settlement, election documents, possible proration, lost option time value, funding, and assignment exposure. Confirm each spread leg separately and do not assume the broker will make an election for an option holder. Compare closing the option with holding through adjustment or exercising only after reading the merger materials and OCC memo.
Common questions
Do my call options automatically become shares of the acquiring company?
No. In a stock merger, OCC may adjust the contract to deliver a specified number of acquirer shares, possibly with cash for fractions or other property. That is an adjusted option, not an automatic exercise into stock. In a cash merger there may be no acquirer shares at all. Read the final deliverable line in the OCC memo.
What happens to an out-of-the-money option in an all-cash acquisition?
Once the merger is effective and the deliverable is fixed cash, a contract with no intrinsic value against that amount becomes worthless. The result is based on aggregate strike cost versus the fixed contract cash, not on a speculative post-merger stock price. Before closing, deal failure and timing can still leave option value, so the announcement date is not the final calculation date.
Can a long-dated option expire early after a buyout?
Yes. OCC procedures ordinarily accelerate expirations for equity options adjusted to cash-only delivery. The new date, exercise threshold, and cutoff appear in official notices. Do not rely on the original brokerage expiration label, because an in-the-money holder who misses the accelerated instruction process can lose the opportunity to exercise.
What happens to a covered call when the company is acquired?
The short call is adjusted under the same contract terms, and assignment can require the new deliverable rather than 100 target shares. Stock merger property may continue to cover some or all of that obligation, but quantities, cash components, timing, and account treatment can differ. In a cash merger, settlement timing can require payment before the stock merger proceeds are credited, so coverage should be verified rather than assumed.
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