The 4 Questions Before Every 0DTE Entry

For years I traded the signal. A candle pattern, an indicator cross, a level that “should” hold. Sometimes it worked. When it didn’t, I couldn’t tell you why, and that was the real problem. A trade you can’t explain is a trade you can’t repeat.

The desks that move SPX don’t trade signals. They trade location. Before anything else, they ask where the stops are resting, where fair value sits, what time of day it is, and whether price has actually proven its intent. That’s four questions. I answer the same four before every 0DTE entry, and if any answer is no, I wait.

This article walks through each question, then shows it on two real sessions from the SPXXL record — one where the rules kept me out of a whole losing morning, and one where I followed every rule and still took the stop. Both matter.

Liquidity is where stop orders cluster. On SPX that means the obvious levels everyone can see: the Previous Day High and Low, the Overnight High and Low, the session extremes, and Equal Highs and Lows that look like a double top or bottom. The more obvious the level, the more stops sit behind it. That’s a Liquidity Pool.

When price reaches a pool, one of two things happens, and telling them apart is the whole game:

So question one isn’t “is price at a level?” It’s “did price sweep the level, or was it accepted?” A sweep that fails to reclaim is a Sweep-and-Fail, and that one tells you to stand aside too.

VWAP is the session’s volume-weighted fair value. It’s the price the big desks benchmark their fills against, so it acts like a magnet and a dividing line at the same time.

After a sweep, I want price back on the right side of VWAP for the direction I’m taking. A long needs price reclaiming VWAP from below — a VWAP Reclaim. A short needs price losing it from above. Two more checks live here. If VWAP is flat, there’s no trend to join and the day is a range. If price is already two standard deviations away, it’s a VWAP Stretch and I’m late.

The same setup behaves differently at 9:35 AM and at 12:30 PM. So the clock is a rule, not a suggestion. All times are Eastern:

The Opening Drive and the Midday Lull each have their own glossary entry if you want the full reasoning.

A sweep is an opportunity. It isn’t proof. Proof is structure. After the sweep, price has to break the opposing swing point — the last swing high for a long, the last swing low for a short.

When that break comes within a couple of hours of the sweep, it’s a Structure Shift: the sweep trapped one side, and the break shows the other side took control. A break without a recent sweep is a plain Break of Structure. Either one answers question four. No break, no entry.

When all four answers are yes, the Institutional Checklist on the SPXXL chart turns Go and the Playbook arms a plan: the entry, a stop beyond the sweep, and the nearest untouched Liquidity Pool as the target.

Here’s the routine on a recorded session. SPXXL classified 2026-08-27 as a Liquidity Sweep day at 38% confidence. SPX opened at 7710.34, traded between 7689.89 and 7741.27, and closed at 7730.11. Every level and time below comes from the recorded 5-minute bars.

Look at the morning first. Anyone fading the break of yesterday’s high at 9:40 was selling into Acceptance. Question one said no, so there was no trade. The first short idea at 10:25 never got structure confirmation, and when the Initial Balance High was accepted at 10:50 the idea was dead. Price went 12.09 points the other way in the next half hour. Waiting cost nothing.

The afternoon is the setup the routine is built for. The Equal Lows at 7711.38 were swept at 14:55 and price closed back inside. At 15:05 price was back above VWAP, the session allowed entries, and structure broke up. All four questions said yes.

The plan mapped to a 7720/7725 Call Debit Spread. The target at the Session High was never reached, so the trade didn’t “win” the way the plan drew it. SPX closed at 7730.11, above both strikes, so the spread finished at its full 5.00 — $500 per contract at expiration. The debit wasn’t recorded, so I won’t claim a profit number. What I can say is that the rules kept me out of the morning and put me in the afternoon.

If I only showed you 08-27 I’d be selling you something. Three sessions earlier, on another Liquidity Sweep day (42% confidence), the same four questions lined up short at 13:30. The plan: entry 7654.43, stop 7663.81, target the Equal Lows at 7642.18, mapped to a 7655/7650 Put Debit Spread.

It filled at 14:00. It hit the stop at 14:20. SPX closed the day at 7652.82.

That’s a Valid Loss. Every rule was followed, the stop sat where the idea was proven wrong, and the risk was defined before entry. A Valid Loss isn’t a mistake. Breaking a rule is the mistake, even when it happens to make money.

I ran the checklist and Playbook bar by bar across every session in the SPXXL record, from 2026-05-28 to 2026-09-25. Here’s what came out, without the flattering parts cut:

Zero of the 7 filled trades reached their target. The target is the nearest untouched pool, and on these sessions price rarely traveled that far after the entry. That’s the kind of thing you only learn by testing the rules on real bars instead of cherry-picked charts.

Sweeps themselves are rarer than most courses admit. Mark the Previous Day High and Low, the Session High and Low, and VWAP at 10:30 AM on 78 recorded sessions and you get 390 lines. Only 30 were swept after the mark. 169 were accepted. 191 were never touched. Most of the time the right answer to question one is “not yet.”

That’s why I built the 5-Line Challenge. You get a real recorded session frozen at 10:30, call each line Swept, Accepted or Untouched, then watch the rest of the day replay. It’s FREE, and it trains question one faster than anything I know.

The four questions are Layer 1: location. Once they’re second nature, Layer 2 is reading who is actually trading at those levels. These are the deeper reads I’d go to next:

This article is educational and uses recorded SPX sessions for illustration. It is not financial advice, past sessions do not predict future ones, and no outcome is guaranteed.

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