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Substack VS GEX Horizon

Compare Substack VS GEX Horizon and see what are their differences

Substack

With Substack, anyone can start a publication that combines a personal website, blog, and email newsletter or podcast. It's quick and simple.

Rating
0 reviews
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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))
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TraderPier
Practice and test a strategy, then trade it live, all in one place. Spyglass, the AI quant on your desk, knows your chart and your trades. US stocks and ETFs. sponsored
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?

Based on our record, Substack seems to be more popular. It has been mentioned 113 times since March 2021.

social mentions
113 vs 0
Blogging popularity
100% vs 0%
alternatives listed
240+ vs 22

Base details

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

Substack
GEX Horizon
Website substack.com gexhorizon.com
Pricing —
Freemium $99 / Monthly (Monthly (Pro Subscription)) Official pricing
Platforms —
Web
Company Startup from the United States 2026
Listed in
Creators Blogging Paid Newsletters CMS +1
Finance Trading Futures Trading Cryptocurrency Trading Algorithmic Trading Stock Trading Financial Analytics Financial Analytics Tools Options Trading +6

About Substack and GEX Horizon

In their own words, as submitted to SaaSHub.

Substack
GEX Horizon

No description of Substack yet.

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

Features and specs

What each product offers, as listed by its team.

Substack 6 features
GEX Horizon 6 features
  • Ease of Use
    Substack offers a user-friendly interface that makes it easy for writers to publish and monetize their newsletters.
  • Built-in Monetization
    Writers can easily charge readers for subscriptions, allowing for straightforward monetization.
  • Direct Audience Connection
    Substack allows writers to build a direct relationship with their audience via email, which can lead to a more engaged readership.
  • Discovery and Community
    Features like staff picks and recommendations help writers get discovered by new readers.
  • No Upfront Costs
    Substack does not charge upfront fees; instead, it takes a percentage of subscription revenues, making it easier to start.
  • Content Ownership
    Writers retain full ownership of their content, giving them more control over their work.

Possible disadvantages

  • Revenue Share
    Substack takes a 10% cut of subscription revenues, which can add up for writers with a large subscriber base.
  • Limited Customization
    The platform has limited customization options compared to building a custom website or using more flexible CMS options.
  • Dependency on Platform
    Relying on Substack means depending on its policies and infrastructure, which could pose risks if the platform changes its terms or features.
  • Competition
    As more writers join Substack, it can become challenging to stand out amidst the growing competition.
  • Email Deliverability
    Writers may face issues with email deliverability, as some newsletters may end up in spam folders.
  • Payment Processing Fees
    Besides Substack's fee, payment processors like Stripe also take a percentage, further reducing net earnings for writers.
  • 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.

Analysis

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

Substack
GEX Horizon

Overall verdict

  • Substack is a good choice for writers seeking autonomy and a straightforward way to monetize their content. However, it may not be the best fit for those who prefer working within the framework of a larger publication or those unfamiliar with the challenges of building and maintaining a subscriber base.

Why this product is good

  • Substack is a platform that allows writers, journalists, and content creators to publish and monetize their newsletters. It is praised for its ease of use, built-in subscription system, and direct-to-consumer model which enables writers to retain control over their audience and content. The platform has attracted both independent writers and established journalists seeking the freedom to monetize their work without traditional media constraints.

Recommended for

  • Independent writers and journalists
  • Content creators looking to monetize their work
  • Individuals seeking a direct relationship with their audience
  • Those who appreciate simplicity in publishing

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

Videos

Walkthroughs and reviews on video.

Substack 5 videos + Add
GEX Horizon 0 videos + Add

Monetizing Podcasts and Newsletters - Chris Best of Substack and Jonathan Gill of Backtracks

More videos

  • - E1016 Substack CEO Chris Best empowers writers via email newsletter platform, raised $15M from a16z
  • - Why EVERYONE should be on Substack | What it is, How it Works, $$$
  • - Beehiiv vs Substack (2024) - Which is Better?
  • - My Experience with SUBSTACK: An Honest Review of Substack

No GEX Horizon videos yet. You could help us improve this page by suggesting one.

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
Substack
GEX Horizon
100% 100%
Blogging
0% 0%
0% 0%
Trading
100% 100%
100% 100%
CMS
0% 0%
0% 0%
Options Trading
100% 100%

Questions & Answers

As answered by people managing Substack and GEX Horizon.

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.

User comments

Share your experience with using Substack and GEX Horizon. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Substack no reviews yet
GEX Horizon no reviews yet

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Substack 113 mentions
GEX Horizon 0 mentions
  • How to Get Substack Newsletter Data: Posts, Comments and Subscriber Counts
    a profile link: https://substack.com/@noahpinion. - Source: dev.to / 2 days ago
  • Ask HN: What are you working on? (November 2026)
    A free comedy newsletter that has nothing to do with technology yet mentions it from time to time. https://substack.com/@yelluwcomedy. - Source: Hacker News / 5 days ago
  • UK Defence Startups Are Being Denied Banking Services Under ESG Rules
    Books have already been written on this, some as early as 1945 (That Hideous Strength, C.S. Lewis). Otherwise I can recommend basically everything by Curtis Yarvin and Kevin Dolan (https://substack.com/@exitgroup,... - Source: Hacker News / 24 days ago

View more

Tracking GEX Horizon since Jul 2026.

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