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An option is not a tender instruction17 minute readAug 27, 2026

What happens to options during a tender offer?

Learn why a tender offer normally does not adjust options, how call exercise and share tendering differ, and what changes after a follow-on merger.

Prepared by Mark · Primary sources below

In this guide

  1. The offer can move price without changing the contract
  2. Exercising a call and tendering shares are separate instructions
  3. Tendered shares may not all be accepted
  4. A later merger is the separate adjustment event

Direct answer

A tender offer or exchange offer normally does not adjust outstanding options merely because shareholders receive an invitation to sell or exchange their shares. The call or put generally continues to deliver the existing underlying shares at the strike while the offer is open. An option holder cannot tender the option itself as though it were stock. A call holder who wants to participate may need to exercise, receive the shares through settlement, and submit those shares under the offer before the broker's tender deadline. If a merger follows and is actually completed, OCC may then adjust the remaining options. Offer terms, settlement timing, proration, and the current OCC memo must all be checked.

The offer can move price without changing the contract

OIC and OCC state that adjustments generally are not made for a tender or exchange offer, whether the bidder offers cash, securities, or other property. While the offer remains open, standard exercise of an equity option therefore continues to call for the underlying shares rather than the proposed offer consideration.

Option prices can still react sharply. The market weighs the offer price, minimum-share condition, financing, regulatory approvals, extensions, competing bids, withdrawal risk, and what the remaining shares may be worth after the offer. A call below the offer price is not a guaranteed arbitrage, and a put writer can face a very different stock after the tender period ends.

Exercising a call and tendering shares are separate instructions

A call gives the right to buy the contract deliverable at the strike; it does not make the holder a shareholder before exercise. To seek the offer consideration, the holder may need to submit a call exercise early enough for the resulting shares to settle and then give the broker a separate tender instruction with the required documents.

The public expiration time may not be the broker's operational cutoff. OCC examples warn that investors may need to exercise sufficiently in advance. Early exercise can sacrifice remaining time value and require strike funding, while late settlement can miss the offer. Ask the broker which shares are eligible, whether guaranteed-delivery procedures are supported, and when instructions become irrevocable.

Tendered shares may not all be accepted

An offer can be conditioned on receiving a minimum number of shares and can cap the number purchased. If more shares are submitted than the bidder accepts, proration may return part of the position. An exchange offer can also involve ratios, election limits, or securities whose value changes before settlement.

Compare the certain executable option bid with the conditional economics of exercise and tender. Include premium time value given up, strike cash, fees, settlement delay, proration, taxes, and the value of shares returned. A displayed spread between strike and offer price is not the realized profit.

A later merger is the separate adjustment event

Many acquisitions use a first-step tender followed by a merger that converts untendered shares into cash or other property. Until that merger is consummated, option exercise generally continues to require delivery of the shares. Once it becomes effective, OCC can publish a contract adjustment based on the completed transaction.

Do not assume every contingent value right, election, or special entitlement enters the option deliverable. OCC decides the adjusted contract case by case, and a specific information memo may exclude an entitlement. Track the offer amendments, expiration or extension, settlement date, second-step merger, new option symbol, deliverable, and any accelerated expiration.

Common questions

Can I tender my call option directly?

Generally no. The offer is made to holders of the eligible shares, while a call is a separate contract right. A holder may need to exercise the call, settle into shares, and tender those shares before the broker deadline. The remaining option time value and funding cost can make selling the call preferable, so compare executable alternatives first.

Why can a call trade below its value at the tender price?

The offer may be conditional, delayed, extended, prorated, amended, or withdrawn, and the option may expire before completion. Bid-ask spreads, interest, dividends, settlement timing, remaining time value, and the value of untendered shares also matter. The market price reflects those risks rather than treating the announced price as cash already received.

Are put options protected by the tender offer price?

No. A put still generally gives the right to sell the existing share deliverable at the strike while the offer is merely open. If the offer succeeds for only part of the shares, the remaining market can change sharply, creating risk for put writers assigned after the deadline. A later completed merger may produce a separate adjustment, but the offer headline is not a guaranteed stock floor.

Do options change immediately when the tender offer expires?

Not necessarily. Expiration of the offer, bidder acceptance, share settlement, and a follow-on merger can occur on different dates. OCC generally contemplates an adjustment when the merger or similar corporate event is actually consummated, not merely when the tender window closes. Monitor the company filing and the latest OCC memo before valuing or exercising the contract.

Sources and further reading

  • [1]Splits, Mergers, Spinoffs & Bankruptcies
  • [2]Characteristics and Risks of Standardized Options
  • [3]OCC Tender Offer Option Information Memo
  • [4]OCC Information Memos

What to remember

  1. A tender or exchange offer normally affects the stock's market value without immediately adjusting the option contract.
  2. A call holder generally must exercise and then tender the resulting shares through a separate, earlier broker process to seek the offer consideration.
  3. OCC may adjust outstanding options only after a follow-on merger or similar transaction is actually completed, using the final event terms.

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