Resideo’s ADI Global Distribution separation moved into a more concrete options phase on Monday, August 3, 2026. OCC memo 59498 fixed the adjusted contract terms that take effect on Tuesday, August 4, 2026. Standard REZI options are changing to REZI1, and each adjusted contract will represent 100 REZI shares plus 50 ADIG shares.
That matters because the story is no longer just “a spin-off is coming.” The practical lesson for self-directed options traders is now about final deliverables, pricing references, liquidity, and assignment handling once the contracts stop being plain single-name REZI options.
This is not financial advice. It is market commentary and options education only, not investment advice or a recommendation to buy or sell any security or options contract. Options trading involves risk and is not suitable for all investors. Review the site’s risk disclosure.
What OCC fixed in memo 59498
The August 3 OCC memo did more than repeat the symbol change. It set the final mechanics for the adjusted contract:
- effective date: August 4, 2026;
- new option symbol:
REZI1; - strike prices: no change;
- contract count: no change;
- multiplier: still 100;
- new deliverable per contract:
100 REZIplus50 ADIG; - pricing formula:
REZI1 = REZI + 0.5 x ADIG.
The memo also provided a 70 percent REZI / 30 percent ADIG settlement allocation, but OCC said that allocation is being supplied only for the OCC-NSCC interface and is not meant for other uses such as customer account statements.
Those are the facts that shift this story from a preparation phase into a live contract-mechanics phase.
Why this is different from the July 14 REZI article
The site’s earlier OCC memo 59375 shifts REZI options toward REZI1 ahead of Resideo’s ADI spin-off article explained that the contract was heading toward adjustment. At that point, the useful lesson was mostly about the coming transition window, when-issued trading, and why traders should stop treating legacy contracts as ordinary REZI exposure.
Memo 59498 changes the lesson again. The final deliverable is now explicit, the effective date is now attached to a concrete adjusted contract, and the pricing reference is no longer something traders have to infer. That is a real phase shift, not a cosmetic update.
Why this matters for options traders
The contract is no longer a plain-vanilla REZI option
Once REZI becomes REZI1, the listed option no longer maps cleanly to only one stock. That alone can change how traders think about exits, hedge assumptions, and what the quoted option is actually referencing after the spin-off becomes effective.
This is where many traders flatten the risk too much. An adjusted contract can still be economically valid while becoming harder to compare with ordinary listed series in the same name.
The stock references are split across different trading lines
Resideo previously told investors that:
- the record date was July 20, 2026;
- the distribution date was August 3, 2026 at 5:00 p.m. Eastern;
- the distribution ratio was one ADIG share for every two REZI shares;
ADIG WIbegan when-issued trading on July 29, 2026;ADIGis expected to begin regular-way trading on August 4, 2026.
That means the option adjustment is landing inside a market structure that already includes when-issued and post-distribution reference points. For traders who need a refresher on how contract settlement can diverge from simple stock ownership, cash-settled vs physically-settled options explained and options expiration, assignment and exercise explained remain the right baseline references.
Assignment and liquidity risk can matter more than the headline
The biggest mistake in these situations is often focusing only on the spin-off headline while underestimating contract handling after adjustment. Once a chain becomes nonstandard, spreads can widen, displayed size can thin out, and assignment timing can matter more than it would in a normal earnings or macro event.
That does not mean traders should assume the adjusted contract is broken or untradeable. It means they should stop assuming it will behave like a standard 100-share equity option. For anyone carrying short in-the-money exposure or covered-call style positions, early assignment risk in options trading is the right refresher before treating this like an ordinary expiration cycle.
What traders may misunderstand
The OCC memo is not a bullish or bearish signal
Memo 59498 explains contract handling. It does not predict whether REZI should rise, whether ADIG should outperform, or whether the combined post-spin economics are attractive.
The new pricing formula does not make the contract simple
Seeing REZI1 = REZI + 0.5 x ADIG can create false confidence. The formula is helpful, but adjusted contracts can still trade with different liquidity, broker display, and exercise-handling frictions than standard series.
The settlement allocation is not a retail valuation shortcut
OCC explicitly said the 70 percent REZI / 30 percent ADIG allocation is being provided only for the OCC-NSCC interface and is not intended for other uses such as customer account statements. Traders should not treat that line as a simple fair-value model for the adjusted option.
Facts, estimates, and interpretation
Confirmed facts
- OCC memo
59498is dated August 3, 2026. - The contract adjustment becomes effective August 4, 2026.
REZIoptions change toREZI1.- The adjusted deliverable is 100 REZI shares plus 50 ADIG shares per contract.
- OCC’s pricing formula says
REZI1 = REZI + 0.5 x ADIG. - Resideo’s July 1 investor-relations release set the July 20 record date and August 3 distribution date for the ADI spin-off.
Reasonable expectations
- Adjusted
REZI1contracts may trade with less depth than the pre-adjustment standard chain. - Traders may need to pay closer attention to how their broker displays deliverables, assignment, and position values after the effective date.
- Near-dated options may reflect contract-mechanics friction as much as any directional opinion about Resideo or ADI.
Interpretation
The real importance of memo 59498 is not that it predicts what REZI or ADIG should do next. It is that the memo fixes the final terms traders now have to work with. The useful options lesson is operational: know the deliverable, know the reference formula, and know that post-spin adjusted contracts can behave differently from the standard chain traders may be used to.
Bottom line
Resideo’s ADI separation has now crossed from “prepare for adjustment” into “trade the final terms that actually exist.” OCC memo 59498 set the effective adjusted symbol, the deliverable, and the pricing formula for REZI1.
For self-directed options traders, the clean takeaway is simple: after August 4, 2026, do not treat legacy REZI options like ordinary single-stock contracts. Treat them as adjusted instruments tied to both REZI and ADIG, with more potential for liquidity, assignment, and handling friction than the headline alone suggests.
This is not financial advice. Options trading involves risk, including liquidity risk, assignment risk, pricing confusion around adjusted deliverables, and the possible loss of the full premium paid.
Sources
- OCC Information Memo 59498, “Resideo Technologies, Inc. - Distribution Option Symbol: REZI New Symbol: REZI1 * * * Update * * *” (plain-text URL):
https://infomemo.theocc.com/infomemos?number=59498 - Resideo investor relations, “Resideo Board of Directors Sets Record Date and Announces Expected Timing for Spin-off of ADI Global Distribution” (plain-text URL):
https://investor.resideo.com/news/news-details/2026/Resideo-Board-of-Directors-Sets-Record-Date-and-Announces-Expected-Timing-for-Spin-off-of-ADI-Global-Distribution/default.aspx - PR Newswire, “Resideo Board of Directors Sets Record Date and Announces Expected Timing for Spin-off of ADI Global Distribution” (plain-text URL):
https://www.prnewswire.com/news-releases/resideo-board-of-directors-sets-record-date-and-announces-expected-timing-for-spin-off-of-adi-global-distribution-302816277.html - OCC Information Memo 59375, “Resideo Technologies, Inc. - Distribution Option Symbol: REZI New Symbol: REZI1” (plain-text URL):
https://infomemo.theocc.com/infomemos?number=59375
