The 0DTE Playbook

This module is not about predicting where the market will go. It is about process — the repeatable routine that wraps around whatever entry method you have learned and tested elsewhere. A 0DTE option is an option contract that expires today ("zero days to expiration"). By the closing bell it is worth its final value or it is worth nothing. There is no tomorrow for it, no time to recover from a mistake, and no room for improvising.

That is exactly why 0DTE trading lives or dies on routine. The traders who survive this arena are not the ones with the cleverest predictions. They are the ones who do the same preparation, the same checks, and the same review every single day.

Before Anything Else: Know Your Instrument

The routine in this module works with any 0DTE structure, but you must know which product you are trading, because settlement rules differ:

• SPX index options are cash-settled (profits and losses are paid in cash, never in shares) and European-style (they can only be exercised at expiration, so there is no early assignment). When the day ends, the contract simply settles.
• SPY options are American-style (they can be exercised at any time) and settle in actual shares. A short SPY option left open into expiration carries real assignment risk — being forced to buy or sell 100 shares per contract.

Major indexes now offer expirations every trading day, so "0DTE" is available every morning. Availability is not an invitation.

Part 1: Pre-Market Prep (Before 9:30 AM)

Preparation happens while the market is closed, when you are calm and nothing is moving. Every item below gets answered in writing — anywhere you can see it during the session. If it is not written down, it does not exist at 10:45 AM when you are emotional.

The Pre-Market Checklist

• Catalysts. What is scheduled today? Economic reports (jobs data, inflation numbers, Federal Reserve announcements and speeches), major earnings releases, and anything that hit the news overnight. A catalyst is an event that can move prices sharply. Write down the exact release times. Many 0DTE traders simply stand aside in the minutes around a major release — decide that now, not during it.
• Expected move. Brokers and options platforms display the expected move — the price range the options market is pricing in for the day, derived from option prices. If SPX closed at 6,000 and the expected move is ±35 points, the market is budgeting for a day roughly between 5,965 and 6,035. This is your context: a trade idea that needs a 60-point move on a 35-point day is a lottery ticket, and you should know that before you pay for it.
• Key levels from prior days. Mark yesterday's high and low, the prior day's closing price, and any obvious recent highs and lows on your chart. These are the lines the whole market can see. Your plan for the day should reference them: "If price pushes above yesterday's high and holds, conditions fit my method. If it chops between yesterday's high and low all morning, they do not."
• Daily max loss — written down. This is the most important line of the day. Decide the maximum dollar amount you are allowed to lose today, in advance, as a fixed number. Example: on a $10,000 account risking 3% as a hard daily cap, the number is $300. Write it where you will see it: "MAX LOSS TODAY: $300." When the day's losses reach it, you are done — platform closed, no exceptions, no "one more to get it back." That is not a suggestion inside this playbook; it is the playbook.
• Session rules. Also write your structural limits for the day: maximum number of trades (many disciplined 0DTE traders allow themselves one to three), the latest time you may open a new position, and the time by which you will be completely flat. On expiration day, new positions opened in the final hour face the fastest decay of the entire week.

Part 2: The Trade-Entry Checklist

Your entry method — whatever signals you have tested and chosen to trade — tells you when a trade might exist. This checklist decides whether you are allowed to take it. Every box must be checked before you click buy. If any box fails, there is no trade, and "the setup looked perfect" is not an override.

• Structure chosen, and it fits the day. Decide exactly what you are trading before you trade it. A single bought call or put has a max loss equal to the premium paid. A debit spread (buying one option and selling a further one in the same expiration) costs less and caps both profit and loss — its max loss is the debit paid. A credit spread (selling one option and buying a further one for protection) collects premium up front — its max loss is the spread width minus the credit received, times $100 per spread. Example: you sell a spread that is 5 points wide for a $1.20 credit. Max loss = (5.00 − 1.20) × $100 = $380 per spread. Know that number before entry, not after.
• Max loss known and inside the day's budget. Add this trade's max loss to everything you have already lost today. The total must stay inside your written daily max loss, with room to spare. A trade whose max loss would break the daily cap is not a smaller trade waiting to happen — it is a trade you skip, or size down to one contract, or do not take at all.
• Exit rules set BEFORE entry. Three exits, decided now:

- Profit exit: the premium level or percentage gain at which you take profit or scale out (reduce the position by selling part of it). - Loss exit: defined in Part 3 below — you will use two kinds, and both get written down. - Time exit: the clock time by which this trade is closed no matter what it is showing.

• No conflicts. Is a scheduled catalyst five minutes away? Is the bid-ask spread (the gap between the price buyers offer and sellers ask) unusually wide, meaning you overpay to enter and get underpaid to exit? Is this your fourth trade idea when your rule says two? Any yes means stand down.

Part 3: Position Management Rules

Once you are in a 0DTE trade, the option decays every minute whether the market moves or not. Management is not decoration; it is most of the job. Define all three mechanisms before entry, then simply execute them.

Scaling at Defined Profit Levels

Scaling out means selling part of the position at a pre-set profit level instead of holding everything for a bigger move. Example with 2 contracts: "At +50% premium gain, sell 1 contract and bank it. The remaining contract now carries the rest of the plan." Scaling converts paper gains into realized ones and lowers the pressure on the remainder of the trade. The honest cost: on the day's biggest runner, you will make less than the trader who held everything. That is the price of consistency — pay it on purpose.

Two Kinds of Stops — Define Both Honestly

A premium stop exits when the option's own price falls to a set level — for example, "exit if the premium loses 40% of what I paid." Honest facts about premium stops on 0DTE: decay alone can push a premium down 40% while the underlying (the index or stock the option is based on) has barely moved, especially later in the day. A premium stop protects you from total loss, but on expiration day it can also eject you from a trade that was never actually wrong on price.

An underlying stop exits when the underlying reaches a price level that invalidates your idea — for example, "exit if SPX trades below yesterday's low." Honest facts about underlying stops: they ignore decay entirely, so a trade can be "right" on level and still bleed to zero while you wait for a level that never breaks. And in a fast move, the premium you actually receive on exit can be far worse than the level implied.

Neither stop is magic. Mature 0DTE traders write down both ("exit at −40% premium OR if SPX loses yesterday's low, whichever comes first") and accept the trade-off with open eyes. What is not acceptable is entering with neither and deciding in the moment — in the moment, hope does the deciding.

Time Stops

A time stop closes the trade at a set clock time regardless of profit or loss. On expiration day this rule matters more than any other in this module, because decay is not linear: an option can hold most of its value until mid-afternoon and then collapse in the final hour. Common forms: "flat by 3:30 PM ET, no exceptions," or "any trade still open at 2:00 PM that has not reached its first profit target gets closed." Pick yours in the morning. The close of your trading day is a decision you make at 8:00 AM, not at 3:47 PM with a dying position open.

Part 4: A Model Day, Hour by Hour

What follows is one complete, ordinary day run under this playbook. The entry method is deliberately unnamed — imagine your own tested signals filling those slots. Numbers are realistic and the math is shown in full. The account is $10,000.

Read that result again: +$22. That is what a well-run 0DTE day usually looks like — unremarkable. The playbook's real product is not the $22. It is that the worst version of this day was capped, in writing, at −$300 before the open, and every decision after 9:30 was made by rules instead of adrenaline.

Part 5: The End-of-Day Routine

Close the day the same way every day, within half an hour of your last trade, while details are still true. A trading journal is the written record of your trades and decisions; for 0DTE it needs fields specific to this arena, because the lessons hide in the timing and the rules, not just the dollars.

Record for every trade:

• Structure — exactly what you traded (calls, puts, debit spread, credit spread), strikes, and expiration.
• Entry and exit times — to the minute. 0DTE performance often splits sharply by time of day, and you cannot see that pattern without timestamps.
• Max loss allowed — the trade's defined max loss, and the day's written cap.
• Premium paid/collected and exit premium — the raw prices, so percentages are honest.
• Which exit fired — profit target, premium stop, underlying stop, or time stop. If the answer is "none, I just felt like exiting," that is the most important entry in the journal.
• Rules followed: Y/N — one letter, no essays. Did you follow the checklist and the written plan, yes or no?

Then one line for the day: total P&L, trades taken, trades refused, and whether the daily max loss was respected. Refusals get logged too — they are decisions, and a week of good refusals is a skill taking shape.

Part 6: The Weekly Review

Once a week (the weekend works), read the week's journals together and answer five questions with numbers, not feelings:

• Rule adherence rate. Count trades where "rules followed" = Y, divided by total trades. This is the single most important statistic a developing 0DTE trader owns. Below roughly 90%, the problem is not your method — it is your execution, and more screen time will make it worse, not better.
• Refusals. How many setups did the playbook refuse, and were the refusals correct in hindsight? If refused trades would mostly have lost, your filters are earning their keep.
• Time-of-day split. Group results by entry hour. Many traders discover their morning trades are sound and their afternoon trades are donations. The playbook then adjusts the no-new-entries time — based on data, not mood.
• Exit audit. Which exit type fired most, and did stops do their job (losses near the defined max loss) or leak (losses far beyond it)?
• One fix only. Choose the single most repeated rule break and make next week's only goal eliminating it. One fix per week compounds; five fixes per week evaporate by Tuesday.

Common Mistakes at This Level

• Writing the max loss in your head. A mental cap moves when losing hurts. A written cap does not.
• Setting exits after entry. Exits designed while a position is open are designed by hope and fear. Before entry, they are designed by you.
• Using only a premium stop and calling it risk management. On expiration day, decay can trigger it on a trade that was right — or you quietly widen it mid-trade, which means it never existed.
• Trading through scheduled catalysts "because the setup was there." The checklist asks about catalysts precisely because the setup will not.
• Refusing to count refusals. If only taken trades get logged, you can never learn whether your filters help or hurt.
• Judging the week by P&L alone. A profitable week with a 60% rule-adherence rate is a warning, not a victory — the luck is borrowed.

Chapter Summary

• A 0DTE option expires today; theta and gamma accelerate violently into the close, and a bought option can lose 100% in minutes.
• SPX options are cash-settled and European-style; SPY options are American-style with real assignment risk. Know which you hold.
• Pre-market prep is written: catalysts with times, the expected move, key levels from prior days, session rules, and a fixed daily max loss.

• The entry checklist is mandatory: structure chosen, max loss known and inside the day's budget (credit spread max loss = width − credit, × $100), and profit, loss, and time exits all set before entry.
• Manage with both stops honestly understood: a premium stop is vulnerable to decay; an underlying stop ignores decay. Time stops end every trade by the clock.
• Scaling out at defined profit levels banks gains and lowers pressure, at the honest cost of capping your biggest runners.
• A model day is mostly waiting: one trade taken with full math, one setup refused by rule, flat well before the close, and a small, boring result.
• Journal 0DTE-specific fields — structure, entry/exit times, max loss allowed, which exit fired, rules followed Y/N — and log refusals too.
• The weekly review runs on numbers: rule adherence rate, refusals, time-of-day split, exit audit, and exactly one fix for next week.

Check Yourself

1. Why must the daily max loss be written down before the open instead of decided during the session?
2. You sell a 5-point-wide credit spread expiring today for a $1.20 credit. What is the maximum loss on one spread?
3. You buy 2 SPX calls at a $1.40 premium. What is your total cost, and what is the maximum you can lose?
4. What is the honest weakness of a premium stop on expiration day, and what is the honest weakness of an underlying stop?
5. In the weekly review, what does a rule adherence rate below about 90% tell you?

Show answers

Answers: 1) Because decisions made mid-session are made by an emotional trader under pressure; a written cap decided calmly in advance is fixed, visible, and cannot be renegotiated in the moment. 2) Max loss = (width − credit) × $100 = (5.00 − 1.20) × $100 = $380 per spread. 3) Total cost = 2 × $1.40 × 100 = $280; for bought options the maximum loss is the premium paid, so $280. 4) A premium stop can be triggered by time decay alone even when the underlying has barely moved, ejecting a trade that was never wrong on price; an underlying stop ignores decay completely, so a position can bleed toward zero while the stop level is never touched. 5) That the problem is execution, not the method — more trading will amplify the rule-breaking, so the fix is discipline (and often less screen time), not a new strategy.