VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Monday, October 27, 2025

View Prospero.aiView Stock Spinoff Investing Home My Collections

Head-to-head

Prospero.ai vs Stock Spinoff Investing comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

Prospero.ai adds Screeners, ETF Screeners, Data Visualizations, Options & Derivatives, Watchlist, Alerts, Market Sentiment, Dark Pool & Off-Exchange, Scores, and Education coverage that Stock Spinoff Investing skips.

Stock Spinoff Investing includes Calendar, Spin-offs, and Videos categories that Prospero.ai omits.

Prospero.ai highlights: Ten proprietary signals: 5 short-term (Options/Social/Institutional/Dark Pool/Short Pressure) and 5 long-term (Upside/Downside Breakout, Profitability, Growth, Market Similarity)., Short-term Net Options Sentiment updates ~every 2–5 minutes (real‑time orientation)., and Daily Screener & ‘Our Picks’ lists to surface candidates quickly for different horizons (long/short, short‑term/long‑term)..

Stock Spinoff Investing is known for: Spin‑off Calendar: **Upcoming** table with parent/spinco, tickers, target timing, first‑trade date, and resource links; plus a **Completed** table with first‑day price, current price, and return since spin‑off., Premium research: ~1 new idea per month with detailed write‑ups, weekly email updates, and a live monthly video Q&A., and Community: members‑only **Discord** for discussion and Q&A with the author..

Prospero.ai ships a mobile app. Stock Spinoff Investing is web/desktop only.

Prospero.ai logo

Prospero.ai

prospero.ai

Mobile-first AI signals app for U.S. stocks & ETFs. Offers 10 proprietary signals (5 short-term: Net Options Sentiment, Net Social Sentiment, Net Institutional Flow, Dark Pool, Short Pressure; 5 long-term: Upside/Downside Breakout, Profitability, Growth, Market Similarity), plus a Daily Screener, ‘Our Picks’, watchlists, and notifications. No broker sync, public API, or advanced options greeks/IV surfaces are documented.

Platforms

Mobile

Pricing

Free

Quick highlights

  • Ten proprietary signals: 5 short-term (Options/Social/Institutional/Dark Pool/Short Pressure) and 5 long-term (Upside/Downside Breakout, Profitability, Growth, Market Similarity).
  • Short-term Net Options Sentiment updates ~every 2–5 minutes (real‑time orientation).
  • Daily Screener & ‘Our Picks’ lists to surface candidates quickly for different horizons (long/short, short‑term/long‑term).
  • Mobile apps on iOS and Android with watchlists and in‑app notifications.
  • Education hub with plain‑English signal docs plus investing/trading newsletters (Substack).

Community votes (overall)

0% upvotes 0% downvotes
You haven't voted yet
View full profileVisit site
Stock Spinoff Investing logo

Stock Spinoff Investing

stockspinoffinvesting.com

Research and newsletter service focused on stock spin‑offs and related special situations. Public **Upcoming** and **Completed** spin‑off calendars; paid tiers deliver monthly deep‑dive ideas, weekly updates, live Q&A calls, and a members‑only Discord. Primary focus is U.S. spin‑offs with selective international coverage.

Platforms

Web

Pricing

FreeSubscription

Quick highlights

  • Spin‑off Calendar: **Upcoming** table with parent/spinco, tickers, target timing, first‑trade date, and resource links; plus a **Completed** table with first‑day price, current price, and return since spin‑off.
  • Premium research: ~1 new idea per month with detailed write‑ups, weekly email updates, and a live monthly video Q&A.
  • Community: members‑only **Discord** for discussion and Q&A with the author.
  • PRO tier: direct access to the author (phone/email), watch‑list document, and live idea presentations.
  • Special situations occasionally covered (e.g., **odd‑lot** split‑off trades).

Community votes (overall)

0% upvotes 0% downvotes
You haven't voted yet
View full profileVisit site
Overlap

Shared focus areas

3 overlaps

Mutual strengths include Stock Ideas, Blogs, and Newsletters.

Where they differ

Prospero.ai

Distinct strengths include:

ScreenersETF ScreenersData VisualizationsOptions & DerivativesWatchlistAlertsMarket SentimentDark Pool & Off-Exchange
  • Ten proprietary signals: 5 short-term (Options/Social/Institutional/Dark Pool/Short Pressure) and 5 long-term (Upside/Downside Breakout, Profitability, Growth, Market Similarity).
  • Short-term Net Options Sentiment updates ~every 2–5 minutes (real‑time orientation).
  • Daily Screener & ‘Our Picks’ lists to surface candidates quickly for different horizons (long/short, short‑term/long‑term).
  • Mobile apps on iOS and Android with watchlists and in‑app notifications.

Stock Spinoff Investing

Distinct strengths include:

CalendarSpin-offsVideos
  • Spin‑off Calendar: **Upcoming** table with parent/spinco, tickers, target timing, first‑trade date, and resource links; plus a **Completed** table with first‑day price, current price, and return since spin‑off.
  • Premium research: ~1 new idea per month with detailed write‑ups, weekly email updates, and a live monthly video Q&A.
  • Community: members‑only **Discord** for discussion and Q&A with the author.
  • PRO tier: direct access to the author (phone/email), watch‑list document, and live idea presentations.

Feature-by-feature breakdown

AttributeProspero.aiStock Spinoff Investing
Categories

Which research workflows each platform targets

Shared: Stock Ideas, Blogs, Newsletters

Unique: Screeners, ETF Screeners, Data Visualizations, Options & Derivatives, Watchlist, Alerts, Market Sentiment, Dark Pool & Off-Exchange, Scores, Education

Shared: Stock Ideas, Blogs, Newsletters

Unique: Calendar, Spin-offs, Videos

Asset types

Supported asset classes and universes

Stocks, ETFs

Stocks

Experience levels

Who each product is built for

Beginner, Intermediate

Beginner, Intermediate, Advanced

Platforms

Where you can access the product

Mobile

Web

Pricing

High-level pricing models

Free

Free, Subscription

Key features

Core capabilities called out by each vendor

Unique

  • Ten proprietary signals: 5 short-term (Options/Social/Institutional/Dark Pool/Short Pressure) and 5 long-term (Upside/Downside Breakout, Profitability, Growth, Market Similarity).
  • Short-term Net Options Sentiment updates ~every 2–5 minutes (real‑time orientation).
  • Daily Screener & ‘Our Picks’ lists to surface candidates quickly for different horizons (long/short, short‑term/long‑term).
  • Mobile apps on iOS and Android with watchlists and in‑app notifications.
  • Education hub with plain‑English signal docs plus investing/trading newsletters (Substack).

Unique

  • Spin‑off Calendar: **Upcoming** table with parent/spinco, tickers, target timing, first‑trade date, and resource links; plus a **Completed** table with first‑day price, current price, and return since spin‑off.
  • Premium research: ~1 new idea per month with detailed write‑ups, weekly email updates, and a live monthly video Q&A.
  • Community: members‑only **Discord** for discussion and Q&A with the author.
  • PRO tier: direct access to the author (phone/email), watch‑list document, and live idea presentations.
  • Special situations occasionally covered (e.g., **odd‑lot** split‑off trades).
  • Coverage emphasis: primarily **U.S.** spin‑offs with compelling **international** names included as warranted.
Tested

Verified by hands-on testing inside Find My Moat

Not yet

Not yet

Editor pick

Featured inside curated shortlists

Standard listing

Standard listing

Frequently Asked Questions

Which workflows do Prospero.ai and Stock Spinoff Investing both support?

Both platforms cover Stock Ideas, Blogs, and Newsletters workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do Prospero.ai and Stock Spinoff Investing require subscriptions?

Both Prospero.ai and Stock Spinoff Investing keep freemium access with optional paid upgrades, so you can trial each platform before committing.

Which tool has mobile access?

Prospero.ai ships a dedicated mobile experience, while Stock Spinoff Investing focuses on web or desktop access.

What unique strengths set the two platforms apart?

Prospero.ai differentiates itself with Ten proprietary signals: 5 short-term (Options/Social/Institutional/Dark Pool/Short Pressure) and 5 long-term (Upside/Downside Breakout, Profitability, Growth, Market Similarity)., Short-term Net Options Sentiment updates ~every 2–5 minutes (real‑time orientation)., and Daily Screener & ‘Our Picks’ lists to surface candidates quickly for different horizons (long/short, short‑term/long‑term)., whereas Stock Spinoff Investing stands out for Spin‑off Calendar: **Upcoming** table with parent/spinco, tickers, target timing, first‑trade date, and resource links; plus a **Completed** table with first‑day price, current price, and return since spin‑off., Premium research: ~1 new idea per month with detailed write‑ups, weekly email updates, and a live monthly video Q&A., and Community: members‑only **Discord** for discussion and Q&A with the author..

Keep exploring

Stay on top of related tools

Browse the categories and profiles that overlap most with this comparison to round out your shortlist.

Curation & Accuracy

This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).

Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.