# Dark Pool Monitor > Monitors institutional dark pool trading activity and options dealer positioning for market insights. (iPhone/iPad app by Vladimir Zasypkin.) - Source: https://appshunter.io/ios/app/dark-pool-monitor/id6784343510 (this page in markdown: same URL + `.md`) - Developer: [Vladimir Zasypkin](https://appshunter.io/developer/6784343782) - Category: Finance - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 15.0 · 23 MB - Languages: American English - Released: 2026-07-02 - Data updated: 2026-09-14 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/dark-pool-monitor/id6784343510/reviews.md ## What is Dark Pool Monitor? Dark Pool Monitor shows you what most retail tools don't: how much trading is happening off-exchange, in the dark pools where institutions move size quietly. Every trading day it computes two professional-grade signals from primary data. DIX (Dark Index): the share of S&P 500 volume executed on dark pools, dollar-weighted. A high DIX means heavy hidden buying; a low DIX means the opposite. GEX (Gamma Exposure): options dealer positioning that signals whether market makers are dampening volatility or amplifying it. WHAT YOU GET - A clean daily dashboard for the S&P 500: DIX, GEX, price, and a plain-English regime read (accumulation vs distribution). - A 180-day history chart so you see the trend, not just today. - Search 2,000+ individual stocks for their own dark-pool ratio and trend. - A Market Map that ranks names by unusual accumulation and distribution. - A regime and nearest-analog readout that compares today to similar past setups. HONEST BY DESIGN Built by a developer who trades, from free primary sources (FINRA short-volume data and market prices). It is informational, not financial advice, and not a timing system. Our own backtests showed dark-pool accumulation did not beat buy-and-hold as a timing signal, so we present it as context, not a crystal ball. Data updates automatically every trading day after the close. Pro unlocks the full dashboard, history, per-stock search, and the Market Map. Try it free for a week. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Daily S&P 500 dashboard (DIX, GEX, price) - 180-day history chart - Individual stock dark-pool ratio search - Market Map for accumulation/distribution - Regime and analog readout - Automatic daily data updates ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Pro Monthly | $2.99 | per month | | Pro Annual | $29.99 | per year | ## Frequently asked questions about Dark Pool Monitor ### What is Dark Pool Monitor's primary function? Dark Pool Monitor displays off-exchange trading activity and options dealer positioning, providing signals like the Dark Index (DIX) and Gamma Exposure (GEX) for the S&P 500 and individual stocks. ### How often does Dark Pool Monitor update its data? Data updates automatically every trading day after the market closes, ensuring users have the latest information for their analysis. ### What are the subscription options for Dark Pool Monitor? Dark Pool Monitor offers a Pro subscription with monthly ($2.99) and annual ($29.99) plans, both including a 7-day free trial. This unlocks the full dashboard, history, per-stock search, and Market Map features. ### Is Dark Pool Monitor available on all devices? Dark Pool Monitor is supported on iPhone, iPad, and iPod devices, making it accessible for users across the Apple ecosystem. ### What is the age rating for Dark Pool Monitor? Dark Pool Monitor has an age rating of 4+, indicating it is suitable for a wide range of users interested in financial data. ### Does Dark Pool Monitor provide financial advice? No, Dark Pool Monitor is designed to be informational and not financial advice. It presents data as context rather than a timing system. ### How does Dark Pool Monitor's DIX signal work? The DIX, or Dark Index, represents the dollar-weighted share of S&P 500 volume executed on dark pools. A high DIX suggests heavy hidden buying, while a low DIX indicates the opposite. ### What does the GEX signal in Dark Pool Monitor indicate? GEX, or Gamma Exposure, reflects options dealer positioning. This signal can indicate whether market makers are acting to dampen or amplify market volatility. ## Version history (last 5 releases) ### 1.6.0 — 2026-09-07 EARNINGS CALENDAR Market map gets a third view: Earnings. See which stocks report over the next two weeks, colored the same way as the map so you can tell at a glance whether dark-pool buying in each name is running unusually high or low going into its report. Tiles show whether the company reports before the open (AM) or after the close (PM), and tap through to the full detail page. ALSO Market map tabs are easier to spot. Small fixes to the daily data pipeline. ### 1.5.0 — 2026-08-15 OPTIONS FOOTPRINT Stock detail pages now show how options positioning sits around a stock: whether large positions tend to dampen or amplify its moves, the strike prices acting as price magnets, and whether open bets lean toward calls or puts. Available for S&P 500 names and major sector ETFs, stamped with the date the positions were reported. MARKET MAP A cleaner layout, with a new "?" that explains how the rankings and tile colors work. WORKS OFFLINE The app keeps your last loaded data, so it opens with something useful even without a connection. ALSO Fixed a bug where some stocks could not be opened from search. General polish and accuracy improvements to the daily data pipeline. ### 1.4.0 — 2026-07-30 New: Watchlist. Star any stock and track it from the day you add it: price since added, 1M, YTD, plus its dark pool status and how it has changed. New: Trends view on the Market map. Stocks quietly accumulated or exited over weeks, not just today, with the streak and the proof one tap away. New: Search by company name. Typing "tesla" now finds TSLA. Also: a multi-week accumulation read on every stock page, clearer subscription wording, and small fixes. ### 1.3.3 — 2026-07-15 Clearer dashboard, same signals. - The bottom and top gauges now lead with how today compares to normal (like "1.6x usual"), with the plain numbers right underneath. - Every stat card now leads with plain English: Hidden buying: Normal, Dealer effect: Calming, Choppiness: Average. The exact values stay in each card's footnote. - The built-in guide now opens automatically on your first launch and explains every card in simple terms. Tap the ? anytime to bring it back. - The dashboard picks up each evening's new data automatically, and a failed refresh keeps your last good data on screen. - The free trial button now shows the trial length up front. - Fixed a rare issue where a brand-new install without a connection could get stuck on the launch screen. - Better error messages throughout. ### 1.3.2 — 2026-07-11 Wording and clarity improvements across the app, plus minor fixes and polish. ## Apps similar to Dark Pool Monitor | App | Rating | Price | Category | | --- | --- | --- | --- | | [Flow Voice: Options Tape](https://appshunter.io/ios/app/flow-voice-options-tape/id6791445221) | — | Free | Finance | | [PnLStack](https://appshunter.io/ios/app/pnlstack/id6764495918) | — | Free | Finance | | [GrowMoney](https://appshunter.io/ios/app/growmoney/id6757701656) | — | Free | Finance | | [SIGNUM HQ: Premarket Earnings](https://appshunter.io/ios/app/signum-hq-premarket-earnings/id6783130444) | 5.0 (1) | Free | Finance | | [Xenith Terminal](https://appshunter.io/ios/app/xenith-terminal/id6761446713) | 5.0 (19) | Free | Finance | | [Bluekurtic](https://appshunter.io/ios/app/bluekurtic/id6763890986) | 5.0 (3) | Free | Finance | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-14.*