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Compare stocks with our powerful stock comparison tool. Analyze fundamentals, price performance, and key financial indicators to make informed investment decisions. Our tool lets you compare up to ten stocks side by side based on Performance Charts, Price & Volume, MarketRank™, Analyst Ratings, Sales & Book Value, Profitability & Earnings, Dividends, Debt, Ownership, Headlines, and more. Simply enter up to ten stock symbols (e.g., BAC, JPM, WFC, C, GS) to get started and uncover top investment opportunities.

Comparative Price Performance Over Time

Compare Price & Volume

Company	Current Price	50-Day Moving Average	52-Week Range	Market Cap	Beta	Avg. Volume	Today's Volume
LUNA Luna Innovations	$0.90	$0.90	$0.22 ▼ $2.54	$30.56M	2.01	147,869 shs	15,220 shs
MCTR CTRL Group	$1.45 -5.2%	$2.29	$1.33 ▼ $54.91	$22.18M	N/A	131,483 shs	80,947 shs
SGRP SPAR Group	$1.19 +0.8%	$1.09	$0.91 ▼ $2.48	$28.18M	0.34	291,330 shs	194,873 shs
SUGP SU Group	$6.30 -6.4%	$7.07	$3.44 ▼ $26.60	$8.72M	2.93	53,351 shs	80,953 shs

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Compare Price Performance

Company	1-Day Performance	7-Day Performance	30-Day Performance	90-Day Performance	1-Year Performance
LUNA Luna Innovations	0.00%	+16.88%	-10.00%	+28.57%	-62.18%
MCTR CTRL Group	0.00%	-1.36%	-22.04%	-70.41%	+144,999,900.00%
SGRP SPAR Group	0.00%	+6.73%	+8.18%	+13.88%	-17.93%
SUGP SU Group	0.00%	+44.73%	-15.78%	-20.75%	-62.28%

Compare MarketRank™

Company	Overall Score	Analyst's Opinion	Short Interest Score	Dividend Strength	ESG Score	News and Social Media Sentiment	Company Ownership	Earnings & Valuation
LUNA Luna Innovations	0.0854 of 5 stars	0.0	2.0	0.0	0.0	0.6	1.7	0.0
MCTR CTRL Group	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
SGRP SPAR Group	2.4569 of 5 stars	0.0	3.0	0.0	0.0	1.9	1.7	3.1
SUGP SU Group	0.9918 of 5 stars	0.0	5.0	0.0	0.0	1.1	1.7	0.6

Compare Analyst Forecasts

Company	Consensus Rating	Consensus Price Target	% Upside from Current Price
LUNA Luna Innovations	N/A	N/A	N/A
MCTR CTRL Group	N/A	N/A	N/A
SGRP SPAR Group	N/A	N/A	N/A
SUGP SU Group	N/A	N/A	N/A

Compare Sales & Book Value

Company	Annual Revenue	Price/Sales	Cashflow	Price/Cash	Book Value	Price/Book
LUNA Luna Innovations	$116.61M	0.26	$0.30 per share	3.03	N/A	∞
MCTR CTRL Group	N/A	N/A	N/A	N/A	N/A	N/A
SGRP SPAR Group	$163.63M	0.17	$0.01 per share	95.57	$1.04 per share	1.14
SUGP SU Group	$23.43M	0.37	$1.36 per share	4.62	$9.49 per share	0.66

Compare Profitability & Earnings

Company	Net Income	EPS	Trailing P/E Ratio	Forward P/E Ratio	P/E Growth	Net Margins	Return on Equity (ROE)	Return on Assets (ROA)	Next Earnings Date
LUNA Luna Innovations	$9.28M	N/A	0.00	∞	N/A	N/A	N/A	N/A	N/A
MCTR CTRL Group	N/A	N/A	0.00	∞	N/A	N/A	N/A	N/A	N/A
SGRP SPAR Group	-$3.15M	$0.51	2.33	9.92	N/A	-3.78%	-18.99%	-7.40%	11/13/2025 (Estimated)
SUGP SU Group	$1.37M	N/A	0.00	∞	N/A	N/A	N/A	N/A	N/A

Latest SUGP, LUNA, SGRP, and MCTR Earnings

Date	Quarter	Company	Consensus Estimate	Reported EPS	Beat/Miss	Gap EPS	Revenue Estimate	Actual Revenue	Details
7/17/2025	Q1 2025	SGRP SPAR Group	N/A	$0.02	N/A	$0.02	N/A	$34.04 million

Compare Dividends

Company	Annual Payout	Dividend Yield	3-Year Dividend Growth	Payout Ratio	Years of Consecutive Growth
LUNA Luna Innovations	N/A	N/A	N/A	N/A	N/A
MCTR CTRL Group	N/A	N/A	N/A	N/A	N/A
SGRP SPAR Group	N/A	N/A	N/A	N/A	N/A
SUGP SU Group	N/A	N/A	N/A	N/A	N/A

Compare Debt

Company	Debt-to-Equity Ratio	Current Ratio	Quick Ratio
LUNA Luna Innovations	N/A	N/A	N/A
MCTR CTRL Group	N/A	N/A	N/A
SGRP SPAR Group	0.07	1.36	1.36
SUGP SU Group	N/A	3.37	2.51

Compare Ownership

Institutional Ownership

Company	Institutional Ownership
LUNA Luna Innovations	87.46%
MCTR CTRL Group	N/A
SGRP SPAR Group	9.57%
SUGP SU Group	68.05%

Insider Ownership

Company	Insider Ownership
LUNA Luna Innovations	7.60%
MCTR CTRL Group	N/A
SGRP SPAR Group	50.92%
SUGP SU Group	N/A

Compare Miscellaneous Stats

Company	Employees	Shares Outstanding	Free Float	Optionable
LUNA Luna Innovations	390	33.96 million	31.38 million	Optionable
MCTR CTRL Group	20	15.30 million	N/A	N/A
SGRP SPAR Group	3,425	23.68 million	11.63 million	Not Optionable
SUGP SU Group	N/A	1.38 million	N/A	N/A

SUGP, LUNA, SGRP, and MCTR Headlines

Recent News About These Companies

SU Group Holdings Limited: SU Group Holdings Receives Nasdaq Notification Regarding Publicly Held Shares Deficiency

August 30 at 11:57 AM | finanznachrichten.de

SU Group Holdings Faces Nasdaq Compliance Challenge

August 29 at 4:51 PM | tipranks.com

SU Group Holdings Receives Nasdaq Notification Regarding Publicly Held Shares Deficiency

August 29 at 4:00 PM | prnewswire.com

SU Group announces 1-for-10 reverse stock split

August 21, 2025 | msn.com

SU Group Holdings Limited Announces Reverse Stock Split, Share Capital Increase and Share ...

August 20, 2025 | gurufocus.com

SU Group Holdings Limited Announces Reverse Stock Split, Share Capital Increase and Share Capital Alteration

August 20, 2025 | prnewswire.com

SU Group Holdings Approves Share Consolidation and Capital Increase

August 16, 2025 | theglobeandmail.com

SU Group Holdings Announces Extraordinary General Meeting for Share Restructuring

August 1, 2025 | theglobeandmail.com

SU Group Holdings Ltd. Research & Ratings | SUGP | Barron's

July 13, 2025 | barrons.com

SU Group Holdings Ltd. Stock Grades | SUGP | Barron's

July 12, 2025 | barrons.com

SU Group Holdings Ltd. Financials | SUGP | Barron's

July 12, 2025 | barrons.com

SUGP | SU Group Holdings Ltd. Stock Overview (U.S.: Nasdaq) | Barron's

July 11, 2025 | barrons.com

SU Group Shares Triple on $11.3M Contract Award

July 10, 2025 | marketwatch.com

SU Group Shares Double After Securing Landmark $11.3M Smart Hospital Contract

July 10, 2025 | msn.com

SU Group Secures Record-Breaking US$11.3 Million Hospital Contract in Hong Kong

July 9, 2025 | prnewswire.com

SU Group Holdings Reports Financial Results for H1 2025

June 30, 2025 | tipranks.com

SU Group Received Nasdaq Notification Regarding Minimum Bid Price Compliance

March 27, 2025 | prnewswire.com

SU Group Secures Top Multi-Purpose Sports Venue

March 7, 2025 | prnewswire.com

SU Group Holdings Reports 11% Revenue Growth For Fiscal Year 2024

January 28, 2025 | prnewswire.com

Class A Office Building Selects SU Group to Significantly Bolster Security

January 10, 2025 | prnewswire.com

New MarketBeat Followers Over Time

Media Sentiment Over Time

SUGP, LUNA, SGRP, and MCTR Company Descriptions

Luna Innovations NASDAQ:LUNA

$0.90 0.00 (0.00%)

As of 08/29/2025 01:06 PM Eastern

Luna Innovations Incorporated provides fiber optic test, measurement, and control products worldwide. The company offers test and measurement equipment for fiber optic components and sub-assemblies; polarization control products, including components, modules, and instruments to measure, manage, and control polarization and group delay in fiber optic networks; tunable lasers; and single frequency lasers. It also provides ODiSI sensing solution, which provides distributed strain and temperature measurements; distributed temperature sensing system; hyperion sensing products; Terahertz Sensing Systems that provide precise single and multi-layer thickness, density, basis weight, and caliper thickness measurements; and distributed acoustic sensing products. The company primarily markets its fiber optic test, measurement, and control products to telecommunications companies, defense agencies, government system integrators, researchers, original equipment manufacturers, distributors, testing labs, and strategic partners directly, as well as through manufacturer representative organizations, partner and distribution channels, technical sales engineers, value added resellers, and independent sales representatives. Luna Innovations Incorporated was incorporated in 1990 and is headquartered in Roanoke, Virginia.

CTRL Group NASDAQ:MCTR

$1.45 -0.08 (-5.23%)

As of 08/29/2025 04:00 PM Eastern

Ctrl Group Ltd. is a holding company, which engages in the provision of marketing and advertising services. It offers one-stop advertising services to clients throughout the entire advertising process, which comprises the planning, creating, launching, managing, and performance monitoring of the advertisements. The company was founded by Kai Kwan Lam, Chi Fung Lau, and Chun Pong Siu on May 13, 2022 and is headquartered in Hong Kong.

SPAR Group NASDAQ:SGRP

$1.19 +0.01 (+0.85%)

Closing price 08/29/2025 04:00 PM Eastern

Extended Trading

$1.16 -0.02 (-2.10%)

As of 08/29/2025 07:55 PM Eastern

SPAR Group, Inc., together with its subsidiaries, provides merchandising and brand marketing services in the Americas, the Asia-Pacific, Europe, Middle East, and Africa. The company offers merchandising and marketing services, such as resets and cut-ins; price and inventory audits; stock replenishment and rotation services; out of stock management; promotional event setup; and display management, as well as category management and set up services comprising category and product resets; planogram maintenance; display and shelf services; and point of purchase installation and management. It also provides remodel and retail transformation consisting of store remodels, store department resets, fixture and banner installations, pop-up store services, and store closings; and assembly and installation services, including assembly of merchandise in stores, in-store services, office setup/down-sizing services, and national in-home furniture assembly services. In addition, the company offers business analytics and insights services, such as product dashboards, stock out reporting, visit reporting, real-time service insights, and share of shelf analytics; and fulfillment and distribution services comprising distribution center staffing, point of purchase fulfillment services, kiosk prep, returns processing, picking and packing services, and inventory services. The company serves mass merchandisers; HBAs; pharmacies; and grocery, discount, dollar, convenience, cash and carry, home improvement, consumer electronics, automotive aftermarket, office supply, personal technology, beverage, household products, consumables, financial products, and independent stores. SPAR Group, Inc. was founded in 1967 and is headquartered in Auburn Hills, Michigan.

SU Group NASDAQ:SUGP

$6.30 -0.43 (-6.39%)

Closing price 08/29/2025 03:59 PM Eastern

Extended Trading

$6.32 +0.02 (+0.32%)

As of 08/29/2025 07:48 PM Eastern

SU Group Holdings Limited, through its subsidiaries, operates as an integrated security-related services company in Hong Kong and internationally. The company operates through two segments, Security-Related Engineering Services Business; and Security Guarding and Screening Services Business. It primarily provides security-related engineering, security guarding and screening, and related vocational training services. The company also engages in the design, supply, installation, maintenance, and testing and commissioning of various security systems. In addition, it offers threat detection systems, including X-ray machines, trace detection products, metal detectors, and mail screening machines; traffic and pedestrian control systems, such as traffic control system, automatic fare control systems, turnstiles, automatic door system, and people counting systems; and extra-low voltage systems comprising closed-circuit television, access control, public address, and building management systems to commercial properties, public facilities, and residential properties. Further, the company provides screening services, such as the detection of explosives, and incendiary devices in air cargo consignment and detection of dangerous goods through threat detection systems by screeners; and training courses for basic security services, mandatory basic safety, and training revalidation courses. Additionally, it offers equipment leasing services. The company was founded in 1998 and is headquartered in Kwun Tong, Hong Kong. SU Group Holdings Limited operates as a subsidiary of Exceptional Engineering Limited.

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Comparative Price Performance Over Time