Is SIRI or SPHR more undervalued in 2026?

CirclFi compares SiriusXM Holdings Inc. (SIRI) and Sphere Entertainment Co. (SPHR) using 13 institutional-grade valuation models. SIRI has a Quality of Company score of 7.6/10 while SPHR scores 5.6/10.

Which is a better buy — SIRI or SPHR?

Compare intrinsic values from 13 independent models against current market prices. CirclFi also calculates Value Trap scores. This is not financial advice — conduct your own analysis.

How do SIRI and SPHR valuations compare?

SIRI at $29.87 and SPHR at $133.75 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

SIRI vs SPHR Valuation Comparison 2026 — Intrinsic Value Analysis

SIRI

Entertainment

SiriusXM Holdings Inc.

Quality

7.6

out of 10

Value Trap

LOW

Price

$29.87

Last close

Models

12/13

Active

SPHR

Entertainment

Sphere Entertainment Co.

Quality

5.6

out of 10

Value Trap

SAFE

Price

$133.75

Last close

Models

13/13

Active

Model-by-Model Comparison

Model	Type	SIRI Fair Value	SIRI Upside	SPHR Fair Value	SPHR Upside
Bayesian DCF	Intrinsic	$32.61	+9.2%	$9.75	-92.7%
Earnings Power Value	Intrinsic	$98.28	+229.0%	$55.11	-58.8%
EROIC Spread	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
First Chicago	Scenario	$•••.••	••.•%	$•••.••	••.•%
Markov DDM	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
ML-RIV	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
Dynamic NAV	Asset-Based	$•••.••	••.•%	$•••.••	••.•%
PWERM	Option-Based	$•••.••	••.•%	$•••.••	••.•%
Regime Cross-Sectional	Relative	$•••.••	••.•%	$•••.••	••.•%
Sentiment SOTP	Hybrid	$•••.••	••.•%	$•••.••	••.•%
CUCE Ensemble	Ensemble	$•••.••	••.•%	$•••.••	••.•%
FTNN Topology	Relative	$•••.••	••.•%	$•••.••	••.•%
RCMH-DCF	Intrinsic	$•••.••	••.•%	$•••.••	••.•%

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SIRI vs SPHR — Which Stock Is More Undervalued?

SIRI scores higher with a 7.6/10 quality rating vs SPHR's 5.6/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing SiriusXM Holdings Inc. (SIRI) and Sphere Entertainment Co. (SPHR) across 13 institutional-grade valuation models reveals how each company's intrinsic value stacks up against its market price. CirclFi's engine processes SEC EDGAR 10-K and 10-Q filings, FRED macroeconomic data, and GDELT news sentiment to generate independent fair value estimates daily.

SIRI currently trades at $29.87 with a QOC of 7.6/10, while SPHR trades at $133.75 with a QOC of 5.6/10.

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 Topology), and ensemble methods (CUCE).