Which Security & Protection Services stocks trade furthest below Equity Rank's model fair value?

As of 2026-10-22, the Security & Protection Services companies with the widest model fair value differential above the current price (among those valued by at least five methods) are ADT (50.1%), GEO (21.6%), BRC (9.1%). These are multi-method model estimates under stated assumptions, not price targets or recommendations.

Security & Protection Services Stocks — Fair Value & Margin of Safety

Equity Rank covers 11 Security & Protection Services companies; 10 have a published model fair value, and 5 of those (50%) trade below the model estimate. The median model fair value sits 3.3% above the current price, under these model assumptions. Data as of 2026-10-22.

Source: Equity Rank — Security & Protection Services stocks. Model fair value is a multi-method blend (DCF, Graham Number, earnings power, sector multiples and more), recomputed after each U.S. market close.

Security & Protection Services stocks furthest below the model estimate

Among companies valued by at least five methods. A wide gap can also mean the models are missing something.

ADT — ADT Inc: model fair value $10.48 vs. price $6.98, a model fair value differential of 50.1% above the current price (as of 2026-10-22)
GEO — Geo Group Inc: model fair value $32.76 vs. price $26.94, a model fair value differential of 21.6% above the current price (as of 2026-10-22)
BRC — Brady Corporation: model fair value $90.17 vs. price $82.65, a model fair value differential of 9.1% above the current price (as of 2026-10-22)

All 11 Security & Protection Services companies

Ticker	Company	Price	Model fair value	Gap
ALLE	Allegion PLC	$176.36	$159.05	-9.8%
MSA	MSA Safety	$184.44	$175.77	-4.7%
ADT	ADT Inc	$6.98	$10.48	+50.1%
BCO	Brinks Company	$111.22	$119.86	+7.8%
BRC	Brady Corporation	$82.65	$90.17	+9.1%
GEO	Geo Group Inc	$26.94	$32.76	+21.6%
CXW	CoreCivic Inc	$29.33	$35.96	+22.6%
NSSC	NAPCO Security Technologies Inc	$38.60	$34.59	-10.4%
MG	Mistras Group Inc	$21.42	$21.16	-1.2%
CIX	CompX International Inc	$35.81	$33.71	-5.9%
NL	NL Industries Inc	$6.67	Not published	—

Largest companies first. Gap = model fair value differential versus the current price; positive means the price sits below the model estimate. “Not published” means the models lacked reliable data.

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