BackQuant Gamma Exposure Levels vs GEX Levels: Free Visualiser or Managed Feed?
BackQuant's Gamma Exposure Levels is a free, open-source Pine script with an unusually thoughtful level taxonomy — it separates 0DTE structure from all-expiry structure, which most GEX tools flatten into one set. It also states plainly that it does not calculate GEX; you supply the numbers. That combination defines who it suits.
Why Compare These Two Tools
Most gamma exposure indicators present a single set of levels: one Call Wall, one Put Wall, one flip. That is a simplification, because gamma exposure computed across all expiries and gamma exposure computed from same-day options describe two different things. The all-expiry picture tells you where structural positioning sits. The 0DTE picture tells you what today's traders have built, which on SPX and QQQ can dominate intraday behaviour entirely.
BackQuant's script is notable for taking that distinction seriously and exposing both sets. GEX Levels approaches the same problem from the data side rather than the display side. Comparing them is really a comparison of where you want the complexity to live — in your own data workflow, or in the tool.
What BackQuant Gamma Exposure Levels Does Well
- Separate 0DTE and all-expiry level sets. HVL, Call Resistance and Put Support are rendered for all expiries and, independently, for same-day options. For 0DTE-heavy instruments this is a genuinely useful distinction that many commercial products do not surface.
- Expected-move bounds. Upper and lower expected-move lines give a volatility-implied envelope alongside the gamma structure, which is a different kind of information from a wall and pairs well with it.
- A configurable GEX Top 10. The highest-gamma strikes can be shown for 0DTE, for all expiries, or narrowed to the top five — useful for keeping a chart readable when positioning is spread across many strikes.
- Zero Gamma, Max Pain and Flip Zones. The advanced set goes beyond the usual three levels, and flip zones rather than a single flip line is a more honest representation of where the regime boundary actually sits.
- Label merging. Overlapping levels combine their labels rather than stacking into an unreadable pile — a small detail that matters on a busy chart.
- Open-source and free. The code is public and auditable, and the script itself costs nothing.
- Careful disclaimers. The description states that GEX levels are not guaranteed support or resistance, that the data is a snapshot requiring periodic updates, and that levels indicate hedging concentration rather than determining price. That is a more responsible framing than much of the category offers.
Note that the author also sells separate paid services through external links. The script itself, however, is free and open-source.
What GEX Levels Does Differently
The BackQuant script and GEX Levels agree completely on one thing: the script is a visualisation layer, and the real work is upstream. BackQuant says so explicitly — it does not generate or calculate GEX data, it plots externally sourced levels. GEX Levels exists to be that upstream layer.
Because it is a Chrome extension, it is not bound by Pine Script's inability to reach the network. The levels are computed server-side from options data and pushed to the chart during the session. The practical consequence is that "the data is a snapshot requiring periodic updates" — accurate and honest in BackQuant's description — stops being your responsibility to act on.
On the level taxonomy, the two products emphasise different dimensions. BackQuant splits by time: 0DTE versus all expiries. GEX Levels splits by greek: alongside gamma structure (Call Wall, Put Wall, Gamma Flip, Zero DEX, Volatility Trigger, Focus levels, Max Pain, open-interest walls) it exposes second-order structure that BackQuant does not — vanna walls with a vanna flip, and charm concentration levels with a charm flip. Vanna and charm describe how dealer hedges shift as volatility and time change rather than as price changes, and they are rarely available outside institutional tooling.
It also runs on Tradovate as well as TradingView, which a Pine script by definition cannot.
The Education Library covers the interpretive gap: 1,292 written lessons and 36 videos across 101 modules, one-time $249.99. Knowing that a 0DTE Call Resistance sits at 23,200 is not the same as knowing what it implies for a trade at 23,150.
Cost Comparison
| Component | BackQuant GEX Levels | GEX Levels |
|---|---|---|
| Script / tool cost | Free, open-source | $6.99/mo or $76.89/yr |
| Options data | Not included — externally sourced | Included |
| Keeping levels current | Your responsibility, each session | Automatic during the session |
| Source code auditable | Yes | No |
| Education included | No | Separate — $249.99 one-time |
| Free trial | Not applicable — it is free | 3 days monthly / 7 days annual |
Feature Comparison
| Capability | BackQuant GEX Levels | GEX Levels |
|---|---|---|
| Delivery | Pine Script, TradingView public library | Chrome extension overlay |
| Data acquisition | Manual — externally sourced values | Automatic fetch |
| 0DTE vs all-expiry split | Yes — separate level sets | Levels computed per session; no separate 0DTE overlay |
| Expected move bounds | Yes | No |
| Flip representation | Zero Gamma plus flip zones | Gamma Flip, Zero DEX, cluster zones |
| Top gamma strikes | Top 10 / top 5, selectable | Focus levels and wall extenders |
| Vanna and charm structure | No | Yes |
| Works outside TradingView | No | Tradovate, in addition to TradingView |
One row deserves emphasis in BackQuant's favour: the 0DTE/all-expiry split and expected-move bounds are real capabilities that GEX Levels does not currently match. A trader whose process is built around that distinction is better served by the free script.
Which One to Pick Based on Use Case
Profile 1: The 0DTE trader who wants same-day structure isolated
This trader works SPX or QQQ on the day of expiry and needs to see where same-day positioning sits, separately from the longer-dated book. Collapsing the two into one set genuinely loses information for them.
BackQuant's script is the better tool for this specific need, assuming a data source that publishes 0DTE-segmented GEX. Its taxonomy is built for exactly this question.
Profile 2: The trader whose bottleneck is data, not display
This trader can already read a gamma profile. What they do not have is a reliable, current source of the numbers — and pasting values into a text box before the open is not a workflow they will sustain past the second week.
GEX Levels is the closer fit. The visualisation is comparable; the difference is that nothing is required of you to keep it accurate.
Profile 3: The trader who wants volatility context alongside gamma
Expected-move bounds and gamma walls answer different questions — one is implied-volatility derived, the other positioning derived — and seeing them together is a legitimate way to frame a session.
BackQuant covers this in a single free script. GEX Levels does not draw expected move, so a trader who needs both in one place should weigh that honestly.
Overlap, Not Replacement
There is no conflict in running both. A free open-source script on a study chart, where you occasionally paste a 0DTE set to examine same-day structure, sits perfectly well alongside an automatic overlay on the instrument you actually trade. The two are addressing different halves of the same problem — one solves display, the other solves supply.
The question that decides it is simply: is your gap the picture, or the numbers behind it?
GEX Levels Education Library — The Full Curriculum
1,292 written lessons and 36 videos across 101 modules: options flow, gamma exposure mechanics, order flow, dealer positioning, and professional workflow. One-time $249.99.
Access the Library — $249.99Closing Note on Comparisons Like This One
Tool comparisons written by one vendor about a competitor are inherently non-neutral, and this article is no exception — GEX Levels operates the products described in the second column above. BackQuant's script is free, open-source, carefully disclaimed, and does two things GEX Levels does not do at all: it separates 0DTE from all-expiry structure, and it draws expected-move bounds. Those are stated plainly above rather than omitted.
Readers should verify current features directly on the script's TradingView page and on each vendor's site before deciding. Product details change, and this article reflects information available at the time of writing.