
GammaWalls
GammaFlip
FlashAlpha
ChartGEX
FinViz
Barchart
Celwalls.com
Free real-time Gamma Exposure (GEX) dashboard tracking SPX, SPY & QQQ Call/Put Walls, Zero Gamma Flips, and Dealer Hedging Levels.

MySQL
Microsoft SQL
SQLite
MongoDB
Oracle DBaaS
Oracle Database 12c
SAP HANA
PostgreSQL is a powerful, open source object-relational database system.

Which is more popular?
Based on our record, PostgreSQL seems to be more popular. It has been mentioned 19 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | gexhorizon.com | postgresql.org |
| Pricing | ||
| Platforms | — | |
| Company | 2026 | Startup from the United States |
| Listed in |
In their own words, as submitted to SaaSHub.


Track Market Maker Positioning in Real-Time GEX Horizon is a free, real-time Gamma Exposure (GEX) analytics platform for options traders who need to see where dealers are positioned — and what they'll be forced to do next. Unlike legacy GEX tools that refresh daily, GEX Horizon delivers...
No description of PostgreSQL yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
No GEX Horizon videos yet. You could help us improve this page by suggesting one.
Comparison of PostgreSQL and MongoDB
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing GEX Horizon and PostgreSQL.
GEX Horizon's answer
GEX Horizon is the only free platform that delivers real-time, sub-second gamma exposure data via WebSocket streaming. Most GEX tools update once daily — we update with every options trade. Key differentiators:
GEX Horizon's answer
GEX Horizon's answer
GEX Horizon's answer
GEX Horizon was built out of frustration with the status quo in options analytics. Institutional traders have always had access to real-time gamma exposure data — it's fundamental to understanding market maker behavior and intraday volatility regimes. Yet the tools available to most traders were either:
We believed that every trader deserves to see where the dealers are positioned — in real-time, without a paywall. So we built the WebSocket infrastructure, the real-time GEX computation engine, and the intuitive dashboards that make institutional-grade options market microstructure data accessible to everyone. The result is GEX Horizon — free, real-time, and built for the traders who need it most.
Share your experience with using GEX Horizon and PostgreSQL. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Enter GEX Horizon. Built from the ground up to solve the latency, cost, and integration problems of legacy platforms, GEX Horizon is quickly emerging as the premier SpotGamma alternative. Below, we break down exactly...
Predicting Market Maker Behavior: If dealers are in a "Positive Gamma" regime, they will hedge by selling into rallies and buying into dips, creating a tight, low-volatility, range-bound market. If they are in a...
Choosing the right database management system (DBMS) is a crucial decision that directly impacts your project’s performance and scalability. With a variety of options — SQL Server, MySQL, PostgreSQL, MongoDB, Oracle,...
Yes, several tools, such as MySQL, PostgreSQL, and MongoDB, offer free versions. While these are robust, enterprise editions or add-ons may come with additional costs for advanced features and support.
Peliqan acts as a bridge, allowing you to e.g. effortlessly pull your PostgreSQL data into Google Sheets for easy access and analysis using its one-click connector. Additionally, Peliqan’s platform provides a...
Recommendations tracked on public social media and blogs since March 2021.


Tracking GEX Horizon since Jul 2026.
In this new series we will be creating an API written in go, using a framework like Chi, connecting to a PostgreSQL, and have it deployed to a site like Railway. - Source: dev.to / 8 months ago
PostgreSQL 17 Performance Guide — Official docs for the latest performance improvements. - Source: dev.to / 8 months ago
You also might be saying, Why not include the credit and attribution data with the product data and just use one data file? Thats a great question. I could have for the purpose of this demo, but if there were a backend to this project... - Source: dev.to / about 1 year ago
When comparing GEX Horizon and PostgreSQL, you can also consider the following products.

Stop staring at complex GEX heatmaps. GammaWalls scores SPX/ES dealer positioning and wall strength automatically throughout the trading day. $37/mo, cancel anytime.
Compare GammaWalls to GEX Horizon or PostgreSQL:


All five crypto options exchanges in one gamma map, US markets alongside, with alerts, API and AI access, from $39 a month. 3-day free trial.
Compare GammaFlip to GEX Horizon or PostgreSQL:

Microsoft SQL is a best in class relational database management software that facilitates the database server to provide you a primary function to store and retrieve data.
Compare Microsoft SQL to GEX Horizon or PostgreSQL:

Real-time options analytics API - Greeks, gamma exposure, SVI vol surfaces for 6,000+ underlyings. Free tier available.
Compare FlashAlpha to GEX Horizon or PostgreSQL:
