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Portfolio123 Review, Pricing, and Features

By Jera Value · Verified Sep 2026

Portfolio123 lets you turn investment ideas into stock or ETF screens, factor rankings, and historical strategy tests. Build rules around point-in-time data, examine simulations, and manage holdings through the separate Manage module. Higher research plans add custom ranks, longer tests, live strategies, and optimization tools. Free Manage is ongoing, while free research access is temporary. API and raw-data rights need careful attention to separate licenses and account terms.

Verdict

Worth it if you develop factor-based screens and test systematic investing rules.

  • Factor research: build rankings from your own formulas
  • Strategy testing: simulate buy, sell, and portfolio rules
  • Account review: track supported brokers in Manage

Skip it if you want simple stock picks or unlimited free strategy research.

  • Temporary research: free screening and backtesting lasts 30 days
  • Separate rights: raw data and API uses can require licenses
  • Advanced workflow: useful models take setup and judgment
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Portfolio123

portfolio123.com

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Web / API / Desktop · How this site is funded

Pricing

Prices checked
6 plans
Save up to 29% yearly

Manage (Free)

$0

For free account and strategy tracking

  • Portfolio tracking, notes, trades, and charts.
  • Supported broker connections and watchlists.

Free Screener & Backtesting Access

$0

For trying screens and backtests

  • 30 days of screener and backtesting access.
  • No credit card required.

Screener

$300/yrBilled annually· Save 29% vs monthly

For screening US and Canadian stocks

  • Stock/ETF screens and predefined ranks.
  • Five years of screen backtests.
  • 400 resource units and 250 monthly API calls.

Backtest

$1000/yrBilled annually· Save 28% vs monthly

For testing custom ranking systems

  • Custom ranking systems and portfolio simulations.
  • 10 years of backtests.
  • 1,000 resource units and 500 monthly API calls.

Portfolio

$1500/yrBilled annually· Save 28% vs monthly

For running live research strategies

  • Live strategies, hedging, and AI Factor.
  • 15 years of backtests.
  • 5,000 resource units and 1,000 monthly API calls.

Ultimate

$2400/yrBilled annually· Save 28% vs monthly

For research needing deeper optimization

  • Position sizing, regression, and optimizer.
  • 20 years of backtests.
  • 10,000 resource units and monthly API calls.

Professional / API & Data Licenses: contact sales for a quote.

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Deals

25% off the first year of Portfolio123 Ultimate with annual billing for non-professional subscribers

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Key features

  • Factor rankings

    Combine fundamental and market factors into custom ranking systems.

  • Stock and ETF screens

    Filter supported universes to find research candidates.

  • Strategy simulations

    Test rules, position sizing, and rebalancing with historical inputs.

  • Point-in-time research

    Use historical data designed to avoid future information in a test.

  • AI Factor

    Eligible plans train model-based return predictors.

  • Manage portfolios

    Track accounts, trades, and watchlists with supported broker connections.

  • Licensed APIs

    Access supported ranks, universes, and factor series under applicable data terms.

FAQ

Is Portfolio123 free?

Not entirely. Portfolio123 includes a free tier, but its paid subscription and other options unlock more capacity. Visit the vendor site for current limits and pricing. Enterprise quotes are handled directly with the vendor.

Who is Portfolio123 best for?

Portfolio123 is built for Retail Traders, Pro Retail, Institutional Investors, Analysts, Quants/Developers, Financial Advisors + 1 more. It suits beginner, intermediate, and advanced users.

What platforms and connections does Portfolio123 support?

You can use Portfolio123 on Web and Desktop. Portfolio123 offers an API (REST) with APIKey authentication. Integrations include Interactive Brokers and Tradier.

Which markets does Portfolio123 cover?

Portfolio123 covers North America and Europe. Examples include US and CA. It tracks Stocks, ETFs, and Closed-End Funds. Identifiers include Ticker.

Tool details

Highlights

  • Free tier available
  • Starred: An editor pick: I would reach for it first in its category. Not for sale.
  • Tested: I used the product myself, long enough to have an opinion about it. Not a full audit.
  • Domain rating37: Ahrefs scores how strong a site's backlinks are, from 0 to 100. A high score usually means an established site that many others cite and trust.

Domain Rating by Ahrefs

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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.