GEX and KPL: Combining Dealer Positioning Context with Fixed Reference Levels

Two different questions, two different tools

Price levels tell you where to watch. They don't tell you what kind of day it might be. GEX (gamma exposure) is an attempt at the second question. It is an estimate of how options dealers' hedging could dampen or amplify index moves. KPL are fixed reference prices anchored to the regular-session opening print. They answer a different question, and the two are only worth combining if you keep clear on what each one is and isn't.

What GEX actually is

When dealers hold options positions, they hedge the delta of those positions by trading the underlying. As price moves, the hedge changes, and the net effect can push in the same direction as price or against it. The idea behind GEX is to sum this effect across strikes and estimate its sign.

Negative GEX means dealers are modeled as net short gamma, so their hedging would tend to buy into rallies and sell into declines, which can amplify moves. Positive GEX means dealers are modeled as net long gamma, so hedging would tend to sell strength and buy weakness, which can dampen moves.

The word modeled matters. Open interest does not tell you who holds which side, so every GEX vendor makes assumptions about positioning. Different vendors can disagree, and the number changes with expirations and with price. Treat it as context with real uncertainty and not as a forecast.

The levels people reference

Vendors commonly publish three structural prices. The zero gamma level is where the modeled total flips sign. The call wall is the strike with the heaviest call open interest or gamma, and the put wall is its mirror on the downside. Some traders treat these as areas where behavior might change. Nothing guarantees price respects them, and in my experience the right posture is to mark them and watch what happens, not to trade them blindly.

What KPL are, and what they are not

KPL are fixed reference prices anchored to the regular-session opening print. The standard ES/NQ map has four levels, built from full-session and after-hours travel. The levels do not move intraday. They are not AI-predicted prices, not order-flow levels from anyone's book and not secret support and resistance. YMI's AI and model context is a separate layer from the KPL calculation. The strategy page at KPL trading covers how they are used.

One timing consequence follows directly. The opening print is not known until the regular session opens at 9:30am ET, so a completed anchored KPL map does not exist before the open. GEX levels can be prepared overnight, but the KPL side of the comparison has to wait for the open.

Putting them on the same chart

GEX levels are usually quoted in SPX or SPY terms, while you are trading ES futures. ES carries a basis versus the cash index that changes with interest rates and time to expiry. Before you compare anything, convert the GEX price into the futures price you are actually looking at. Skipping this step can put your reference line several points away from where the vendor intended, which defeats any attempt at precise comparison.

Once both sets are on the chart, the comparison is simple. Does a KPL sit near a GEX level? Two references sitting near each other does mean you are watching a zone that two independent methods flagged. It does not mean the zone is more likely to hold. That is a claim you would have to test.

How to use the sign of GEX without overclaiming

A reasonable hypothesis to carry into a session: if modeled GEX is negative, expect that moves may extend further and fades may be riskier; if positive, expect that ranges may compress and fades may be less costly. Notice that all of these are expectations to check against the day's price action, not rules. Gaps, scheduled data and news can override whatever dealer positioning suggests.

If you adjust size by regime, make the adjustment explicit. A hypothetical example: your normal risk is $200 per trade. Trading MES at $5 per point with a 10-point stop is $50 per contract, so four contracts risk $200. If you decide high-volatility days get half size, that becomes two MES contracts and $100 of risk. That is a sizing rule you chose, not something GEX told you. See the regime sizing guide for more on that idea.

How to test whether the combination helps

Log each session with the same fields: modeled GEX sign, the converted GEX levels, the KPL map after the open, and what price did at each overlap. Compare days with an overlap against comparable days without one. You need a large sample and a comparison group before reading anything into it, and the sample must cover different market conditions. Thirty observations is not a statistically proven edge. Write your hypothesis down before you start, so you are not fitting a story to results afterward. The trade plan guide covers where these notes live in a daily routine.

Data sources

GEX estimates are available from vendors such as SqueezeMetrics and SpotGamma, among others, usually by subscription. Check each vendor's methodology page, since the assumptions differ. YMI VIP ($297/month, no trial) includes the Intro features plus model context. If you want that detail, the VIP tier page lists what is included.