Prospero

Stock Screener — Freemium

Simplifies institutional data into AI-driven stock rankings and market sentiment indicators.

Clear institutional data scaling

Overview

Prospero is a stock screener built to take institutional-grade data and turn it into rankings and sentiment indicators a retail investor can actually read. This Prospero review covers what the simplification gets right, where it asks for blind trust, and who it's built for. It's aimed squarely at beginners, distilling millions of institutional data points into a small set of clear, AI-driven metrics instead of a spreadsheet of raw numbers.

That simplification is the whole point, and it works: instead of parsing raw institutional data, a user gets a ranking and a sentiment read that's immediately usable. The screener tracks both short-term momentum and long-term valuation setups, so it isn't locked into one style of investing. Prospero also puts out free daily and bi-weekly market newsletters, which is a genuinely useful habit-builder for a beginner trying to stay engaged with the market without paying for research. The starting price is Free, with no cost barrier to get in the door.

The tradeoff for that simplicity is control. Prospero offers less customization than an advanced technical screener, so a trader who wants to build highly specific filters will hit a ceiling fast. The rankings also lean heavily on proprietary data-scaling metrics that aren't fully transparent, which means the user is trusting Prospero's math more than verifying it independently. There's no free trial structure here since the core product is already free, but there's also no paid-tier detail to compare it against.

Coverage is US stocks only, fitting swing trading and long-term investing rather than day trading or options. Automation is manual, skill level is aimed at beginners, there's no API access, and a mobile app is included for checking rankings on the go. This fits a beginner who wants a simplified, free starting point for stock ideas; an advanced trader who wants granular technical control should look at a more customizable screener instead.

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