Green or Red by 4 PM, Projected From Days Like Today.
The SPX 0DTE Cheat Tool reads where the S&P 500 stands right now and projects where it is likely to finish by 4 PM based on past days that traded a similar setup.
Most 0DTE traders price the close on feel: the morning looks strong, so the day should finish green. But an up open and an up close are different events, and the gap between them is exactly where same-day options make or lose money. The decision-relevant question is not where the index is now, it is where days like this one have actually closed, measured across every comparable session rather than guessed from this morning's tape.
The same morning move can resolve very differently depending on context: what the close looks like depends on how far the index has moved, what time of day it got there, and the volatility regime it is trading in. The tool matches all three, filtering the history to days with a similar move at the same checkpoint and a similar VIX, and draws the full intraday cone of those days' paths to 4 PM, with the green/red boundary marked, so you see the realistic range of finishes rather than a single guess.
The green and red close odds, the average and median drift from the current checkpoint to 4 PM, the intraday price cone, and the full log of matched days, refreshed at every 30-minute checkpoint.
The projection re-anchors at every elapsed half-hour checkpoint from the open to 3:30 PM.
How often days like today closed green versus red, with the raw count behind each rate.
The average and median return from the current checkpoint to 4 PM across the matched days.
The matched days' paths fanned out to the close, with the green/red boundary marked at 0%.
Matches are filtered toward days with a similar VIX, so a calm tape is not judged by panic days.
Every matched day listed with its VIX, checkpoint move, drift to the close, and daily close.
Before taking a 0DTE position, see how often days like today actually closed green or red.
Use the average and median drift to 4 PM to judge whether the rest of the day is worth paying for.
Scan the intraday cone to see the realistic range of closes, and how much of it sits on your side of 0%.
Open the day log and inspect every matched session yourself before trusting the projection.
We welcome inquiries from traders, investors, institutions and affiliates
interested in learning more about our tools.