Cboe Plans Premarket Options Trading—But It Will Not Feel Like the Regular Session

The clock starts the session. The underlying stock starts the option.

Before Cboe begins the opening rotation for an eligible option class, it must see a round-lot trade in the underlying stock after 7:30 and a two-sided stock quote from an exchange. The option market must then satisfy Cboe's opening-price controls.

If the stock has not printed, its quote is incomplete, or the options market is not ready, the class can open later. That is likely to matter on quiet mornings and in less active strikes. A symbol appearing on the eligible list does not promise a usable market in every expiration and strike from the first second of the session.

This is where the underlying stock remains the better starting point. Our premarket trading playbook explains how thin volume and uneven price discovery affect shares before the bell. An option adds another layer because its premium also responds to strike, time to expiration, and implied volatility.

The new session creates the opportunity to trade earlier. It cannot manufacture regular-hours liquidity.

FINRA's extended-hours risk disclosure warns that trading outside the main session can bring lower liquidity, wider spreads, greater volatility, and prices that do not carry into the regular open. An options chain divides the available activity further across calls, puts, strikes, and expiration dates.

Imagine a hypothetical call option showing a $2.10 bid and a $2.90 ask after an earnings announcement. The screen has a quote, but the $0.80 spread leaves plenty of room for a bad fill. The midpoint is not automatically fair value, either. The stock may still be jumping between premarket trades while market makers are adjusting implied volatility.

That is why Cboe will accept only limit orders in the new morning and Curb sessions. Market orders, stop orders, and stop-limit orders will be rejected when submitted with an extended-hours designation. The restriction prevents an order from filling at any available price, but it does not protect a trader who chooses an aggressive limit.

The first weeks should reveal how much real depth develops. A useful test is to compare the same contract before 9:25, at the regular opening, and again after the first few minutes of regular trading. Watch the spread, the size displayed at each price, and the underlying stock's volume. Those observations will tell you more about execution quality than the mere existence of an early quote.

Cboe can open the exchange session without making it appear in every retail account. A broker must support the market data, route the order to the correct session, handle the relevant account permissions, and explain how its order ticket labels session eligibility.

That final point matters because an order can be marked for all sessions, regular hours only, or regular hours plus Curb. An order marked for all sessions can remain active across the morning and regular sessions. A regular-hours-only order will wait for the normal open.

There is a less obvious trap. Cboe says that if a firm sends an extended-session designation for an ineligible symbol, the exchange may accept the order as regular-hours-only instead of rejecting it. A trader who assumes the order failed could discover it resting at the 9:30 open.

Do not guess from familiar labels such as "Day" or "GTC." Check how your broker defines the session, when an unfilled order expires, and whether it carries into 9:30. Our day-trading broker checklist covers the wider execution questions worth asking before choosing a platform.

Cboe's afternoon Curb runs from 4:00 to 4:15 p.m. It is a separate session, not an extension that automatically keeps every regular-hours order active. That gives firms and customers a choice about whether their orders should participate after the closing bell.

The window may be useful when a company releases news just after 4:00 or when a trader needs to manage an eligible position. But 15 minutes is not the same as the much longer after-hours stock market, and the option can still be pricing a fast-moving underlying with limited depth.

Expiration day adds a detail that deserves attention. Eligible expiring single-stock options may trade during Curb until 4:15, but OCC still uses the underlying stock's 4:00 closing price to determine whether the option is in or out of the money. The later trade does not move the official expiration reference to 4:15.

Cboe will report morning and Curb trades through OPRA with an extended-hours condition. Those trades will not count as the contract's official last sale, daily high, or daily low. Depending on how a broker displays the data, a conventional quote field may not tell the whole story of the extended session.

The clearest use case is event timing. The morning session includes the 8:30 window when many U.S. economic reports arrive, as well as some company announcements released before the bell. The Curb covers the first 15 minutes after the stock market closes.

Previously, a trader could watch the underlying shares react while the corresponding single-stock option remained closed. Cboe's plan allows selected option markets to begin processing that information sooner.

That flexibility should not become pressure to trade. On a thin morning, waiting for the regular session may still produce a narrower spread and a more stable underlying price. Earlier access can also be used for observation: an opening option quote offers information even when it does not offer a sensible fill.

For anyone considering the new session, three decisions should be made before the order is sent: the maximum acceptable price, whether the order may remain active at 9:30, and how much account risk the position can carry if the stock moves again. Our risk management cheat sheet can help with the last question, although stop orders themselves will not be available in Cboe's extended sessions.

The regular opening will still matter. Broader participation and heavier stock volume can change the option price quickly after 9:30. The market-open playbook explains why the first minutes often require patience even when the premarket direction looks clear.

U.S. stocks are moving toward longer weekday trading, and the options market is beginning to follow. Still, Cboe's August plan is measured: selected companies, one morning window, one 15-minute afternoon window, and exchange-specific order rules.

It is not overnight access to AAPL or NVDA options. It does not guarantee that another options exchange will show a competing quote. And it does not guarantee that a retail broker will support the session on day one.

Our guide to 23-hour stock-market trading covers the broader market-structure shift. The practical conclusion here is narrower. Cboe is bringing some single-stock options closer to the hours when their underlying shares already trade. Whether that becomes genuinely useful will depend on the liquidity that appears—not simply the extra time on the clock.