S&P 500 · deterministic valuation · adversarial review

Find S&P 500 stocks trading below their value, before they're obvious to the market

Divergia ranks every company against the whole index on quality, value, growth and risk, values it with the model that fits its kind of business, and lets an AI committee critique the numbers without being able to change them. When the data runs out, the engine abstains instead of guessing.

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Engine readingSnapshot of Oct 26

GDDY

Technology

MODERATE SIGNAL
Price
$112.79
Intrinsic value
$293.43
Margin of safety
≥ +150%

Free-cash-flow DCF · discount rate 8.8% · 10 years projected

A model's reading, not a buy recommendation.

  • GDDY$112.79≥ +150%MODERATE SIGNAL
  • VRSK$195.88+24%MODERATE SIGNAL
  • BKNG$155.83+39%MODERATE SIGNAL
  • EXPE$289.01+39%MODERATE SIGNAL
  • ROL$34.82+11%MODERATE SIGNAL

Terminal

Try the engine on real data

The first five companies in today's screener, with the numbers exactly as the engine computes them. This page recalculates nothing: it only shows them.

FavourableUnfavourable
Verdict
GDDYTechnology
+0.38
+1.04
+0.11
+0.05
≥ +150%MODERATE SIGNAL
VRSKIndustrials
+1.00
−0.79
−0.84
+0.27
+24%MODERATE SIGNAL
BKNGConsumer cyclical
+1.08
−0.30
+1.14
−0.53
+39%MODERATE SIGNAL
EXPEConsumer cyclical
+0.50
+0.03
−0.85
−0.83
+39%MODERATE SIGNAL
ROLIndustrials
+0.41
−0.95
−0.36
−0.31
+11%MODERATE SIGNAL

Z-scores against S&P 500 companies: 0 is the average and +1 is one standard deviation above it. For risk, a higher number means more risk, so it counts against. Margin = (intrinsic value − price) / price.

divergia / terminal · 5 of the screener's top 20snapshot of Oct 26

Methodology

Four design decisions

What the engine does, and what it deliberately does not do.

Factor engine

01. Ranked against the whole index

We reject fixed cut-offs like a maximum P/E. Every company is measured against the rest of the S&P 500 with z-scores, and the score combines four factors with fixed weights:

QualityROIC · FCF margin · stability
35%
ValueFCF yield · margin of safety · FCF momentum
25%
GrowthFCF growth
25%
RiskDebt/FCF · volatility · cyclicality
15%

Sector-aware valuation

02. The model follows the business

The engine detects what kind of company it is and applies the model that fits. The discount rate starts from each company's beta and the 10-year Treasury yield.

  • Operating companies

    Discounted free cash flow, with a WACC specific to each company

    DCF · WACC
  • Banks and insurers

    Residual income on book value, blended with earnings

    RIM + EPS
  • REITs

    Discounted cash flow on AFFO

    AFFO

Backtest

03. A backtest that does not peek ahead

On each date it uses the companies in the index that day, including the ones that later left, and only data that was already available 90 days earlier.

Rebalance on date Tdata available at T − 90 days

E.g. the Jan 1, 2020 rebalance uses data available on Oct 2, 2019

Abstention

04. It abstains when it does not know

When the data is missing or contradicts itself, the engine publishes no value and says why. An abstention is a result, not an error.

  • Incomplete data
  • Cash flow inconsistent with earnings
  • Company in an investment phase
  • Perimeter change from a spin-off

AI committee

Eight agents stress-test every thesis

A single language model tends to agree with you. Divergia splits the review across agents with different mandates, and all of them work on numbers the engine already computed.

  1. 1

    The engine computes

    Intrinsic value, factors, scenarios and risks, with deterministic math.

  2. 2

    The committee reviews

    Eight agents examine those numbers from different angles, each with its own mandate.

  3. 3

    The synthesis concludes

    It says whether it agrees or disagrees with the engine's verdict, and why.

The AI can disagree with the verdict, but it cannot change the figures.

Read the numbers

  • Quant

    Extracts the price and valuation signals, always with concrete figures.

    Delivers

    • signal strength 0–1
    • key figures
  • Quality

    Looks for competitive advantages and business quality with metrics such as ROIC and cash-flow stability.

    Delivers

    • moat 0–1
    • strengths and weaknesses
  • Risk

    Names the main risk and lays out quantified downside scenarios.

    Delivers

    • aggregate risk 0–1
    • downside scenarios

Read the context

  • Macro

    Judges whether the market regime and interest rates help or hurt the company.

    Delivers

    • regime fit 0–1
    • rate impact
  • News

    Reviews earnings, guidance, ratings, regulatory issues and management changes.

    Delivers

    • sentiment 0–1
    • recent catalyst
  • Research

    Extracts what the 10-K (risk factors and MD&A) and the news actually say, without interpreting.

    Delivers

    • catalysts
    • management signals

Attacks the thesis

  • Devil's advocate

    Looks for the concrete scenarios that would break the bull thesis and estimates how likely it is to fail.

    Delivers

    • thesis-breaking scenarios
    • failure probability 0–1

Concludes

  • Synthesis

    Combines everyone's evidence and says whether it agrees or disagrees with the engine's verdict.

    Delivers

    • thesis
    • risks
    • exit conditions
    • disagreement 0–1

Free plan: 2 full committee verdicts a day.

Why Divergia

Deterministic math. Adversarial review.

Divergia is not a generic bot fed with superficial prompts. The math is computed first; AI critique comes after.

  1. Proprietary quantitative model, not a data wrapper

    Our back-end logic does not make generic API calls to show empty dashboards. We process raw data right from financial statements, run the modeling, and generate the signal before you interact with the screen.

  2. Transparent backtest vs hidden disclaimer

    Our system simulates a 90-day lag on SEC data availability, so reported returns do not use information the investor did not have at the time. And we show all four configurations, including the one that trails SPY.

  3. Built for the analyst, not the gambler

    If you are looking for magic alerts or intraday day-trading strategies, Divergia is not for you. This tool is built entirely to consolidate algorithmic value investing and structural review of solid businesses over the medium to long term.

Backtest

What the official backtest measures, and what it does not

January 2019 to January 2025, using the S&P 500 membership on each date (398 distinct companies over the period) and returns rebuilt day by day. We show all four configurations, including the one that trails SPY.

Compound annual return

Four engine configurations against SPY. Hover a bar for the detail.

Score, equal weightScore, inverse volScore + regimeDecision engine
SPY 17.1%17.3%17.5%15.6%23.8%
  • Score ranking, equal weight

    Annual
    17.3%
    vs SPY
    +0.20pp
    Sharpe
    0.62
    Max drawdown
    43.1%
  • Score ranking, inverse-volatility weight

    Annual
    17.5%
    vs SPY
    +0.37pp
    Sharpe
    0.63
    Max drawdown
    42.6%
  • The above, with less exposure under market stress

    Annual
    15.6%
    vs SPY
    −1.48pp
    Sharpe
    0.61
    Max drawdown
    38.4%
  • Decision engine (DE_ALPHA)

    Annual
    23.8%
    vs SPY
    +6.70pp
    Sharpe
    0.88
    Max drawdown
    38.4%

SPY over the same period: 17.1% a year. Sharpe and max drawdown from daily data.

Why +6.70pp is not a promise

All four figures changed in the latest official run because of data repairs (prices, a historical risk-free rate and SEC cash flows), not engine improvements. For DE_ALPHA, the gap to SPY went from +3.91pp to +6.70pp. In the statistical tests of those repairs, every 95% confidence interval crosses zero. Past performance does not guarantee future results.

Official run of August 10, 2026.

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