Is STI or XPON more undervalued in 2026?

CirclFi compares Solidion Technology, Inc. (STI) and Expion360 Inc. (XPON) using 13 institutional-grade valuation models. STI has a Quality of Company score of 4.4/10 while XPON scores 5.8/10.

Which is a better buy — STI or XPON?

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 STI and XPON valuations compare?

STI at $4.74 and XPON at $0.53 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

STI vs XPON Valuation Comparison 2026 — Intrinsic Value Analysis

STI

Electrical Equipment & Parts

Solidion Technology, Inc.

Quality

4.4

out of 10

Value Trap

SAFE

Price

$4.74

Last close

Models

10/13

Active

XPON

Electrical Equipment & Parts

Expion360 Inc.

Quality

5.8

out of 10

Value Trap

LOW

Price

$0.53

Last close

Models

11/13

Active

Model-by-Model Comparison

Model	Type	STI Fair Value	STI Upside	XPON Fair Value	XPON Upside
Bayesian DCF	Intrinsic	$1.25	-73.6%	$0.27	-49.2%
Earnings Power Value	Intrinsic	$12.37	+178.0%	$0.88	+26.1%
EROIC Spread	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
First Chicago	Scenario	$•••.••	••.•%	$•••.••	••.•%
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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STI vs XPON — Which Stock Is More Undervalued?

XPON scores higher with a 5.8/10 quality rating vs STI's 4.4/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing Solidion Technology, Inc. (STI) and Expion360 Inc. (XPON) 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.

STI currently trades at $4.74 with a QOC of 4.4/10, while XPON trades at $0.53 with a QOC of 5.8/10.

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).