The previous post was not quite understandable for some readers. Therefore a quick note before I went through every single step I took:
\- I rely on charting and primarily on key levels/metrics on /ES combined with probabilities / statistics.
\- I do not use a bunch of indicators, I try keeping my charts always clean.
\- As a daily trader, I do not have time to look at heatmaps for hours and do any gex/gamma analysis. So don't ask me for that. There are so many tools you can subscribe to. Decide on your own. I use one, which I find straightforward and which saves me time.
**Context:** SPX flipped into a real regime change overnight — POSITIVE gamma (net 0DTE GEX +$14.75B pre-market, building to +$17.4B by the open), a sharp reversal from the negative-gamma, put-heavy stretch that had dominated the prior two weeks. Positive gamma plus a call-heavy skew typically means dealers dampen moves rather than amplify them — good backdrop for fading a resistance level rather than chasing a breakout.
**Pre-market data:** \- GEX Regime: Positive Gamma, +$14.75B net 0DTE GEX - 0DTE Call Wall: 7,690 (Moderate) - 0DTE Put Wall: 7,650 (Fragile) - Gamma Flip: 7,656 — MODERATE, 32pts away - GEX Imbalance: 5.36:1, Call-Heavy
[ES early in the morning above Target 2.](https://preview.redd.it/w5a2z5frtjlh1.jpg?width=1738&format=pjpg&auto=webp&s=fa0e1924b69c04f43047b22cf2b57fe353e8da3b)
**05:20 AM:** ES pressing into the 7,698-7,700 zone, my own chart's 2nd Target. Entry wasn't the best possible one — ES spiked to 7,707 minutes later — but the point isn't catching the best fill, it's reacting to pre-defined levels and executing. Scaled into a 10-lot bear call spread combo: SPX 7720/7730 (4 contracts) and 7725/7735 (6 contracts).
The position dipped to -$275 shortly after entry as ES spiked toward the 3rd Target. Treated as a normal swing, not a thesis problem — with the level trusted, theta works in your favor from here. ES reversed right at the 7,700 zone at 04:52 AM. Today's real Daily Brief confirmed it independently — SPX Call Wall (GEX) 7,700, "largest positive gamma concentration, primary resistance" — and its own suggested setup was a Call Credit Spread at SPX 7720/7730, matching this trade almost exactly.
[Pic taken from www.gammawalls.com](https://preview.redd.it/88sx5qqvujlh1.jpg?width=1286&format=pjpg&auto=webp&s=e0b63d276476f49c05fb9525cf9f7ee64c72cba5)
**08:35 AM:** live GammaWalls scan confirmed the picture directly — Positive Gamma, 0DTE Call Wall 7,690 (Moderate), Put Wall 7,650 (Fragile), Flip 7,656 (Moderate). Switching to the 1DTE view showed Call Wall 7,650, Put Wall 7,600, both Moderate — internally consistent with the 0DTE read, and both matched my independent TradingView ES levels from the start of the session.
By market open the position was +$619, and by \~20 minutes into the cash session it had grown to +$816 — with a limit order already working to close the 7720/7730 leg at $0.15 and start locking in profit rather than holding for every last cent. At 10:00 AM the session high was already in, with a clean change of character printing right at the 7,690-7,700 zone — the GammaWalls Call Wall lining up directly with a heavy sell order block on the ES chart itself. Two independent methods, same level, all session.
Closed the 7720/7730 leg at $0.15, then the remaining leg at $0.10 roughly 30 minutes into the cash session. Final result: +$970 net, both legs done well before midday. Both spreads probably would have run to full credit if held — that wasn't the point.
https://preview.redd.it/irmou0slrklh1.png?width=1732&format=png&auto=webp&s=fd5c7a90232c412cfbce9c178bbce435392f3f17
**Key takeaway:** credit spread premium decays slowly in the last \~$0.20 — it takes a genuinely drastic reversal to kill that remainder to zero. There's no edge in holding full size all day to squeeze out pennies while continuing to risk profit that's already earned. Close what you can, when you can, and let the discipline do the work.
Later on I took one more credit spread with only 2 cons for $0.70 each, as the call wall was sitting and changing between the 7665 and 7690. So I shorted 7690. At around 7675 the marked showed several times problems of going higher.
And all positions expired full credit.
ES (SPX) Levels backed up by gex/gamma positioning is literally all I need for my trading. No fancy charts, not 10x screens, no 15 indicators. Levels and gamma positioning tracked via [gammawalls.com](http://gammawalls.com) throughout the session.
**Note:** I am able to trade SPX options overnight due to IBKR (tradable 20 hours a day). You should check your brokerage too.
And this is not a financial advice
Not financial advice — shared for educational purposes only.