SOR vs SPXX

Source Capital, Inc. Cmn Shs of vs Nuveen S&P 500 Dynamic Overwrit — Valuation Comparison 2026

By CirclFi Research Team · Updated 2026-06-03 · Data from SEC EDGAR, FRED & GDELT

Quick Summary — SOR scores higher on quality with 2.0/10 vs SPXX's 1.7/10. SOR trades at $45.86 while SPXX trades at $18.46. Both analyzed daily using SEC EDGAR data across 13 institutional models.

SOR

Asset Management
Source Capital, Inc. Cmn Shs of
Quality
2.0
out of 10
Value Trap
Price
$45.86
Last close
Models
9/13
Active
VS

SPXX

Asset Management
Nuveen S&P 500 Dynamic Overwrit
Quality
1.7
out of 10
Value Trap
Price
$18.46
Last close
Models
9/13
Active
SOR
Markov DDM sees +353.9% upside
Quality 2.0/10 — below average
SPXX
Markov DDM sees +65.9% upside
Quality 1.7/10 — below average

SOR vs SPXX — Fair Value Comparison

SOR
$0$82$164$246 Price$45.86 Bayesian …$11.93 (-74.0%) Markov DDM$208.15 (+353.9%)
SPXX
$0$12$23$35 Price$18.46 Bayesian …$4.80 (-74.0%) Markov DDM$29.36 (+65.9%)
Market Price Model 1 Model 2

Model-by-Model Comparison

ModelType SOR Fair ValueSOR Upside SPXX Fair ValueSPXX Upside
Bayesian DCF Intrinsic $11.93 -74.0% $4.80 -74.0%
First Chicago Scenario $•••.•• ••.•% $•••.•• ••.•%
Markov DDM Intrinsic $208.15 +353.9% $29.36 +65.9%
ML-RIV Intrinsic $•••.•• ••.•% $•••.•• ••.•%
Dynamic NAV Asset-Based $•••.•• ••.•% $•••.•• ••.•%
PWERM Option-Based $•••.•• ••.•% $•••.•• ••.•%
Regime Cross-Sectional Relative $•••.•• ••.•% $•••.•• ••.•%
Sentiment SOTP Hybrid $•••.•• ••.•% $•••.•• ••.•%
CUCE Ensemble Ensemble $•••.•• ••.•% $•••.•• ••.•%

SOR vs SPXX — Which Stock Is More Undervalued in 2026?

SOR scores higher with a 2.0/10 quality rating vs SPXX's 1.7/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

How Do SOR and SPXX Valuations Compare?

At $45.86, SOR trades +74.0% above its Bayesian DCF fair value of $11.93, while SPXX at $18.46 trades +74.0% above its estimate of $4.80. SPXX shows a wider gap between price and intrinsic value.

Quality of Company: SOR vs SPXX

SOR earns a Quality of Company score of 2.0/10 compared to SPXX's 1.7/10. The scores are closely matched, indicating similar fundamental quality profiles. The QOC score synthesizes 32 signals spanning profitability margins, revenue growth, free cash flow, capital allocation, and leverage.

Value Trap Risk: SOR vs SPXX

Review the value trap analysis for both SOR and SPXX to assess whether apparent undervaluation reflects genuine opportunity or hidden fundamental risk.

Both in Asset Management

Both SOR and SPXX operate in Asset Management, which has 448 stocks tracked by CirclFi. Same-industry comparisons provide the most direct insight into relative valuation since both companies face similar regulatory environments, market dynamics, and competitive pressures. Both companies are analyzed with models spanning intrinsic (Bayesian DCF, EPV), scenario-based (First Chicago), regime-switching (Markov DDM, RCMH-DCF), machine learning (ML-RIV, FTNN), and ensemble methods (CUCE).

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