Published Research

Independent, conflict-free studies on the performance and predictive accuracy of ERS’s proprietary ratings. Scroll through the evidence.

4D Rating · Bear Market Test

4D Rating: The Bear Market Test

2,619 companies rated on 12/31/2021 — before the bear market began. How did each rating group perform through the downturn and recovery?

GroupCompanies1-Year Return2-Year Return
A+ & A50-5.1%+19.6%
B & C400-8.0%+10.1%
D823-8.8%+3.1%
E568-19.1%-7.5%
F778-33.8%-27.1%
S&P 500-18.1%+3.4%
2,619Companies Rated
+13%1-Year Alpha vs. S&P 500
+47%2-Year Alpha vs. F-Rated
“A rating that identifies the strongest companies before a bear market is a risk management tool. A-rated stocks lost less than a third of F-rated losses & compounded the advantage in recovery.”— Raymond Mullaney
4D Rating · 25-Year Study

4D Rating: 25-Year Study — 433,500 Ratings

25 years. 433,500 ratings. 1,500 largest U.S. companies. 289 end-of-month dates. One clear pattern: the highest-rated stocks consistently outperformed the lowest.

Grade# Ratings4D ReturnS&P 500Excess% Gain
A+3,52632.1%12.0%+20.1%75.8%
A9,46120.5%11.0%+9.5%71.0%
B23,60215.1%8.6%+6.5%69.2%
C102,87413.5%8.8%+4.7%66.9%
D175,45910.6%9.3%+1.3%62.6%
E57,0987.8%9.6%-1.8%56.2%
F61,4802.3%9.2%-6.9%49.1%
433,500Total Ratings
25 YearsStudy Period
+20.1%A+ Excess Return
“A rating that separates the highest-return stocks from the lowest — consistently, across 25 years and 433,500 data points — is documented evidence.”— Raymond Mullaney
FSN Rating · 25-Year Study

FSN Rating: 25-Year Study — 433,500 Ratings

The FSN rating — a single composite designed for fiduciary use — tested across the same 25-year dataset. The same pattern holds: higher-rated stocks delivered materially better returns.

Grade# RatingsFSN ReturnS&P 500Excess% Gain
A+1,54933.3%18.3%+15.0%74.6%
A5,01821.0%14.5%+6.5%68.3%
B10,84317.4%13.7%+3.7%68.4%
C71,53413.5%11.8%+1.7%63.8%
D265,62310.8%10.5%+0.3%62.2%
E69,5295.8%8.7%-2.9%56.5%
F9,404-1.5%9.0%-10.5%43.7%
433,500Total Ratings
+15.0%A+ Excess Return
74.6%A+ Win Rate
“A rating that separates the highest-return stocks from the lowest — consistently, across 25 years and 433,500 data points — is not a hypothesis. It is documented, reproducible, falsifiable evidence.”— Raymond Mullaney
4D Rating · Live Results

4D Deep Value: Seven Portfolios, Seven Winners

Seven portfolios launched on seven different dates, each built on the 4D Rating. All seven outperformed the S&P 500.

Selection DateStocks4D ReturnS&P 500Excess% Gains
Jul 3, 20254026.8%8.2%+18.6%83%
Jul 31, 20254429.0%7.1%+21.9%84%
Aug 29, 20253713.3%5.0%+8.3%68%
Oct 2, 20252511.6%0.9%+10.7%56%
Nov 3, 20254415.9%-1.2%+17.1%80%
Dec 1, 20254810.7%-0.7%+11.4%71%
Dec 31, 20254413.7%-1.3%+15.0%80%
14.7%Avg. Excess Return
75%Avg. Stock Gain Frequency
7 for 7Portfolios Beat S&P
Alpha Algorithmics · 10-Year Study

Alpha Algorithmics: 10-Year Study — Seven Models

One decade. Seven models. Zero exceptions. Every ERS stock selection model outperformed the S&P 500 over 10 years.

ModelCos.Model ReturnS&P 500Excess% Gains
AA X-F65123.1%33.3%+89.8%77%
AA 147987.2%29.6%+57.6%76%
IA 119863.1%28.6%+34.5%74%
AA 7559.4%13.5%+45.9%80%
MCR 114356.0%21.4%+34.6%55%
AA 223749.4%23.7%+25.7%89%
AA 1812236.4%24.6%+11.8%72%
42.8%Avg. Excess Return
75%Avg. Stock Gain Frequency
7 for 7Models Beat S&P
“These models don’t predict the future. They identify stocks that have historically demonstrated specific financial characteristics — and they document what happened next.”— Raymond Mullaney
FSN Rating · Live Results

FSN Top 40: 2.2× the S&P 500 in 9 Months

One rating. 40 stocks. 2.2x the S&P 500. The FSN Top 40 portfolio outperformed every major benchmark over nine months.

BenchmarkReturnvs. S&P 500
FSN Top 4030.0%+16.6%
Russell 200019.6%+6.2%
NASDAQ15.1%+1.7%
S&P 50013.4%Baseline
30.0%9-Month Total Return
2.2×vs. S&P 500
78%Stocks with Positive Returns
“On any day, every day, for 40 years — ERS can document the results of every stock our ratings identified. No research provider on Wall Street offers that transparency.”— Raymond Mullaney