Is MINE or NB more undervalued in 2026?

CirclFi compares Mayfair Gold Corp. (MINE) and NioCorp Developments Ltd. (NB) using 13 institutional-grade valuation models. MINE has a Quality of Company score of 1.7/10 while NB scores 4.9/10.

Which is a better buy — MINE or NB?

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 MINE and NB valuations compare?

MINE at $3.11 and NB at $5.77 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

MINE vs NB Valuation Comparison 2026 — Intrinsic Value Analysis

MINE

Metal Mining

Mayfair Gold Corp.

Quality

1.7

out of 10

Value Trap

—

Price

$3.11

Last close

Models

7/13

Active

NB

Metal Mining

NioCorp Developments Ltd.

Quality

4.9

out of 10

Value Trap

SAFE

Price

$5.77

Last close

Models

9/13

Active

Model-by-Model Comparison

Model	Type	MINE Fair Value	MINE Upside	NB Fair Value	NB Upside
Bayesian DCF	Intrinsic	$0.80	-74.1%	$3.00	-48.0%
First Chicago	Scenario	$•••.••	••.•%	$•••.••	••.•%
ML-RIV	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
Dynamic NAV	Asset-Based	$0.29	-90.8%	$2.86	-50.4%
PWERM	Option-Based	$2.40	-22.7%	$5.32	-7.8%
Regime Cross-Sectional	Relative	$•••.••	••.•%	$•••.••	••.•%
Sentiment SOTP	Hybrid	$•••.••	••.•%	$•••.••	••.•%
CUCE Ensemble	Ensemble	$•••.••	••.•%	$•••.••	••.•%
FTNN Topology	Relative	$•••.••	••.•%	$•••.••	••.•%

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MINE vs NB — Which Stock Is More Undervalued?

NB scores higher with a 4.9/10 quality rating vs MINE's 1.7/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing Mayfair Gold Corp. (MINE) and NioCorp Developments Ltd. (NB) 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.

MINE currently trades at $3.11 with a QOC of 1.7/10, while NB trades at $5.77 with a QOC of 4.9/10.

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).