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GEX Horizon VS htm.java

Compare GEX Horizon VS htm.java and see what are their differences

GEX Horizon

Free real-time Gamma Exposure (GEX) dashboard tracking SPX, SPY & QQQ Call/Put Walls, Zero Gamma Flips, and Dealer Hedging Levels.

Rating
0 reviews
Pricing
Freemium $99 / Monthly (Monthly (Pro Subscription))
htm.java

htm.java is a Hierarchical Temporal Memory implementation in Java, it provide a Java version of NuPIC that has a 1-to-1 correspondence to all systems, functionality and tests provided by Numenta's open source implementation.

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0 reviews
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Trading popularity
100% vs 0%
alternatives listed
22 vs 108

Base details

Website, pricing, platforms and company facts side by side.

GEX Horizon
htm.java
Website gexhorizon.com github.com
Pricing
Freemium $99 / Monthly (Monthly (Pro Subscription)) Official pricing
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Platforms
Web
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Company 2026 —
Listed in

About GEX Horizon and htm.java

In their own words, as submitted to SaaSHub.

GEX Horizon
htm.java

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...

Read more about GEX Horizon

No description of htm.java yet.

Features and specs

What each product offers, as listed by its team.

GEX Horizon 6 features
htm.java 5 features
  • Real-Time GEX Streaming
    Live sub-second WebSocket stream of net gamma exposure for SPX, SPY, QQQ, and major US equities, updated with every options trade.
  • Call Wall Detection
    Auto-identifies the strike with largest net call gamma — acting as major upside resistance from heavy dealer selling pressure.
  • 0DTE Options Flow
    Intraday analytics for zero-days-to-expiration options, isolating 0DTE gamma exposure from all-expirations to reveal same-day dealer hedging impact on price action.
  • Put Wall Detection
    Automatically identifies the strike with the largest net put gamma, acting as strong downside support due to market maker delta buying obligations.
  • Live Gamma Levels Matrix
    Consolidated real-time view of key GEX levels — call wall, put wall, zero gamma flip, and major gamma concentrations — across all tracked underlyings in a single dashboard.
  • Dealer Hedging Velocity Index
    Measures the speed and magnitude of market maker delta hedging activity, indicating how much buying or selling pressure dealers must execute per unit of price movement.
  • Biologically Inspired Algorithms
    HTM.java is based on Hierarchical Temporal Memory (HTM) theory, which mimics the neocortex's structure, making it innovative and potentially powerful for certain types of machine learning tasks, especially anomaly detection and sequence prediction.
  • Time Series Prediction
    HTM.java excels in time series prediction and anomaly detection, which can be valuable for applications like financial forecasting, network monitoring, and IoT sensor data analysis.
  • Open Source
    Being an open-source project, HTM.java allows developers to freely use, modify, and contribute to the codebase, fostering community-driven development and innovation.
  • Java Ecosystem Integration
    HTM.java is written in Java, which means it can be easily integrated with other Java-based systems and take advantage of the vast array of libraries and tools available in the Java ecosystem.
  • Real-time Analytics
    The framework supports real-time data processing, making it suitable for applications that require immediate insights from streaming data.

Possible disadvantages

  • Complexity
    The underlying principles of HTM theory can be difficult to grasp, which may be a barrier for new developers trying to learn and implement the algorithms.
  • Limited Adoption
    Compared to more mainstream machine learning frameworks like TensorFlow or PyTorch, HTM.java has a smaller user base and community, potentially leading to fewer resources and community support.
  • Performance
    HTM algorithms can be computationally intensive, which might be a concern for applications requiring high performance or low-latency processing, especially when compared to optimized deep learning frameworks.
  • Niche Use-Cases
    The strengths of HTM.java are specific to particular problems like anomaly detection and sequence prediction, making it less versatile for a wide range of machine learning tasks in comparison to more general-purpose frameworks.
  • Documentation and Tutorials
    The available documentation and tutorials for HTM.java might not be as comprehensive or beginner-friendly as those for more established frameworks, potentially increasing the learning curve.

Analysis

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

GEX Horizon
htm.java

Overall verdict

  • I don't have verified, up-to-date information about GEX Horizon (gexhorizon.com) to make a reliable assessment of its quality, legitimacy, or performance. Before using this service, especially if it involves financial products, trading, or investments, you should conduct thorough independent research.

Why this product is good

  • I do not have specific data or verified reviews about this particular website or service in my knowledge base
  • Financial and trading platforms require careful due diligence including regulatory checks, which I cannot perform in real-time
  • Without current information, I cannot confirm the legitimacy, features, or track record of this platform

Recommended for

  • Anyone considering this service should first verify its regulatory status with relevant financial authorities
  • Check independent review sites like Trustpilot, BBB, or forums for user experiences
  • Look for verifiable company registration and contact information
  • Consult with a licensed financial advisor before making any investment decisions
  • Research the founders/team background and company history

Overall verdict

  • Good for those interested in biologically inspired machine learning and neuroscience applications. However, the framework might require a significant learning curve for those unfamiliar with HTM concepts.

Why this product is good

  • htm.java is a Java implementation of Hierarchical Temporal Memory, which is useful for exploring and experimenting with machine learning models that mimic some properties of the human neocortex. It brings together temporal memory and pattern recognition capabilities into a framework that offers potential for innovation in time-based, predictive modeling.

Recommended for

  • Researchers in machine learning and neuroscience
  • Developers seeking to explore advanced AI concepts
  • Educational purposes in computational intelligence

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
GEX Horizon
htm.java
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%

Questions & Answers

As answered by people managing GEX Horizon and htm.java.

What makes your product unique?

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:

  • Live zero gamma flip detection — know the exact strike where dealer positioning shifts regime in real-time, not at yesterday's close
  • Free institutional-grade analytics — call/put walls, dealer hedging velocity, and 0DTE flow are typically locked behind expensive paywalls elsewhere
  • Multi-asset coverage — SPX, SPY, QQQ, NDX plus single stocks like NVDA, TSLA, AAPL, MSFT all in one dashboard
  • No delayed snapshots — WebSocket-powered streaming means you see dealer positioning as it changes, not 15 minutes ago

Why should a person choose your product over its competitors?

GEX Horizon's answer

  • Real-time, not daily — WebSocket streaming delivers sub-second GEX updates, so you see dealer positioning as it shifts, not yesterday's snapshot
  • Free institutional-grade data — Call/put walls, zero gamma flips, dealer hedging velocity, and 0DTE flow are all available at no cost — features typically locked behind expensive paywalls
  • Zero gamma flip detection — Know the exact strike where the market shifts from volatility suppression to acceleration, in real-time
  • Multi-asset in one view — SPX, SPY, QQQ, NDX plus single stocks (NVDA, TSLA, AAPL, MSFT) all tracked from a single dashboard
  • 0DTE-specific analytics — Isolate same-day gamma exposure to understand how 0DTE options are driving intraday dealer behavior and pinning forces
  • No API key or setup required — Open the dashboard and start trading. No subscriptions, no configuration, no delayed data tiers
  • Built by traders, for traders — Every feature is designed around the question: "What will dealers be forced to do next?"

How would you describe the primary audience of your product?

GEX Horizon's answer

  • 0DTE options day traders who need to know whether dealer hedging will suppress or accelerate intraday moves
  • SPX/SPY index options traders who use gamma levels as key support/resistance in their daily planning
  • Futures traders hedging ES/NQ positions who need to understand dealer delta exposure dynamics
  • Retail options traders seeking institutional-grade market structure data without paying premium subscriptions
  • Quantitative analysts monitoring real-time dealer positioning for systematic strategy signals
  • Financial advisors and PMs who want a quick daily read on whether the market is in a long-gamma or short-gamma regime

What's the story behind your product?

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:

  • Expensive ($30-100+/month for daily snapshots)
  • Delayed (refreshing once per day, missing intraday regime shifts)
  • Incomplete (showing gamma charts without zero gamma flips, call/put walls, or hedging velocity)

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.

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Reviews and articles

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