Is SIDU or SIF more undervalued in 2026?

CirclFi compares Sidus Space, Inc. (SIDU) and SIFCO Industries, Inc. (SIF) using 13 institutional-grade valuation models. SIDU has a Quality of Company score of 4.5/10 while SIF scores 7.7/10.

Which is a better buy — SIDU or SIF?

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 SIDU and SIF valuations compare?

SIDU at $5.18 and SIF at $21.45 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

SIDU vs SIF Valuation Comparison 2026 — Intrinsic Value Analysis

SIDU

Aerospace & Defense

Sidus Space, Inc.

Quality

4.5

out of 10

Value Trap

SAFE

Price

$5.18

Last close

Models

9/13

Active

SIF

Aerospace & Defense

SIFCO Industries, Inc.

Quality

7.7

out of 10

Value Trap

SAFE

Price

$21.45

Last close

Models

12/13

Active

Model-by-Model Comparison

Model	Type	SIDU Fair Value	SIDU Upside	SIF Fair Value	SIF Upside
Bayesian DCF	Intrinsic	$1.57	-69.7%	$16.74	-21.9%
Earnings Power Value	Intrinsic	—	—	$12.99	-39.5%
EROIC Spread	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
First Chicago	Scenario	$•••.••	••.•%	$•••.••	••.•%
ML-RIV	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
Dynamic NAV	Asset-Based	$0.47	-90.9%	$5.62	-73.8%
PWERM	Option-Based	$•••.••	••.•%	$•••.••	••.•%
Regime Cross-Sectional	Relative	$•••.••	••.•%	$•••.••	••.•%
Sentiment SOTP	Hybrid	$•••.••	••.•%	$•••.••	••.•%
CUCE Ensemble	Ensemble	$•••.••	••.•%	$•••.••	••.•%
FTNN Topology	Relative	$•••.••	••.•%	$•••.••	••.•%
RCMH-DCF	Intrinsic	$•••.••	••.•%	$•••.••	••.•%

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SIDU vs SIF — Which Stock Is More Undervalued?

SIF scores higher with a 7.7/10 quality rating vs SIDU's 4.5/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing Sidus Space, Inc. (SIDU) and SIFCO Industries, Inc. (SIF) 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.

SIDU currently trades at $5.18 with a QOC of 4.5/10, while SIF trades at $21.45 with a QOC of 7.7/10.

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).