Data Science and Proprietary Ratings
for Smarter Investment Decisions

Nine proprietary quantitative ratings. 25 years of validation.
Every portfolio decision backed by data you can show to any client.

Start 30-Day Free Trial Schedule a Demo
portal.ers.ai
ERS Model Portfolios — live positions, performance, and risk ratings
433,500+
Ratings validated
25
Years of data
9
Proprietary ratings
91%
Bankruptcies flagged early

Live Model Portfolios

Curated models, rebalanced quarterly. Returns tracked by BX Partners and IndexOne.

Model Since Return
Free Trial Portfolios — Since 12/31/25
Resilient Value
Large-cap fundamental strength
12/31/25
Dividend Income Model
Quality dividend-paying stocks
12/31/25
Small-Cap Model
Smaller companies, high potential
12/31/25
S&P 500 12/31/25
NASDAQ Composite 12/31/25
Independent Reference — Since 6/6/25
BX ERS 40 6/6/25
S&P 500 6/6/25
NASDAQ Composite 6/6/25

Return data as of previous trading day's close. Returns tracked by BX Partners and IndexOne.

How It Works

Step 1

Explore the Models

Browse three live model portfolios — each built using proprietary risk ratings, rebalanced quarterly, with full position transparency and performance history.

Step 2

Review the Screens

Check our monthly idea lists — data science screens that select the highest-rated stocks across the largest 1,500 U.S. companies by market cap.

Step 3

Use What Fits

Implement a model as a complete portfolio, use it as a starting point, or pick individual names from our screens for your own research.

Ready to See What Our Ratings Find?

Start a free 30-day trial for access to live model portfolios and monthly data science screens. Or schedule a demo and we'll walk through it together.

Start Free Trial Schedule a Demo
Model portfolios + idea lists Full platform access Cancel anytime