Is FLY or HEI more undervalued in 2026?

CirclFi compares Firefly Aerospace Inc. (FLY) and Heico Corporation (HEI) using 13 institutional-grade valuation models. FLY has a Quality of Company score of 6.5/10 while HEI scores 9.6/10.

Which is a better buy — FLY or HEI?

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 FLY and HEI valuations compare?

FLY at $49.37 and HEI at $345.07 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

FLY vs HEI Valuation Comparison 2026 — Intrinsic Value Analysis

FLY

Aerospace & Defense

Firefly Aerospace Inc.

Quality

6.5

out of 10

Value Trap

—

Price

$49.37

Last close

Models

12/13

Active

HEI

Aerospace & Defense

Heico Corporation

Quality

9.6

out of 10

Value Trap

LOW

Price

$345.07

Last close

Models

12/13

Active

Model-by-Model Comparison

Model	Type	FLY Fair Value	FLY Upside	HEI Fair Value	HEI Upside
Bayesian DCF	Intrinsic	$12.55	-74.6%	$34.68	-89.9%
Earnings Power Value	Intrinsic	$9.38	-72.3%	$52.27	-84.9%
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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FLY vs HEI — Which Stock Is More Undervalued?

HEI scores higher with a 9.6/10 quality rating vs FLY's 6.5/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing Firefly Aerospace Inc. (FLY) and Heico Corporation (HEI) 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.

FLY currently trades at $49.37 with a QOC of 6.5/10, while HEI trades at $345.07 with a QOC of 9.6/10.

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).