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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
PLPC Preformed Line Products	$160.45 +0.5%	$144.03	$109.01 ▼ $165.33	$793.44M	0.75	31,541 shs	94,099 shs
POWL Powell Industries	$209.53 -0.4%	$183.63	$127.01 ▼ $364.98	$2.53B	0.73	402,952 shs	194,352 shs
THR Thermon Group	$28.70 +2.2%	$27.56	$23.05 ▼ $34.36	$956.28M	1.04	170,504 shs	70,460 shs
VICR Vicor	$45.20 -0.4%	$44.29	$32.36 ▼ $65.70	$2.04B	1.77	243,638 shs	94,762 shs

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Compare Price Performance

Company	1-Day Performance	7-Day Performance	30-Day Performance	90-Day Performance	1-Year Performance
PLPC Preformed Line Products	+0.51%	+4.63%	+11.13%	+12.33%	+28.32%
POWL Powell Industries	-1.16%	+16.58%	+24.91%	+19.65%	+46.76%
THR Thermon Group	-0.88%	+2.78%	+7.80%	-0.43%	-8.78%
VICR Vicor	-2.79%	+3.49%	+4.04%	-3.53%	+36.79%

Compare MarketRank™

Company	Overall Score	Analyst's Opinion	Short Interest Score	Dividend Strength	ESG Score	News and Social Media Sentiment	Company Ownership	Earnings & Valuation
PLPC Preformed Line Products	1.7559 of 5 stars	0.0	3.0	0.8	0.0	2.0	2.5	1.3
POWL Powell Industries	4.2514 of 5 stars	3.8	2.0	1.7	0.0	3.1	2.5	2.5
THR Thermon Group	1.7054 of 5 stars	0.0	4.0	0.0	0.0	0.0	1.7	2.5
VICR Vicor	2.0604 of 5 stars	1.5	2.0	0.0	1.4	2.8	2.5	0.0

Compare Analyst Forecasts

Company	Consensus Rating Score	Consensus Rating	Consensus Price Target	% Upside from Current Price
PLPC Preformed Line Products	0.00	N/A	N/A	N/A
POWL Powell Industries	3.50	Strong Buy	$312.00	48.91% Upside
THR Thermon Group	0.00	N/A	N/A	N/A
VICR Vicor	3.00	Buy	$43.00	-4.86% Downside

Current Analyst Ratings Breakdown

Compare Sales & Book Value

Company	Annual Revenue	Price/Sales	Cashflow	Price/Cash	Book Value	Price/Book
PLPC Preformed Line Products	$593.71M	1.33	$11.94 per share	13.44	$86.23 per share	1.86
POWL Powell Industries	$1.01B	2.50	$12.86 per share	16.29	$40.30 per share	5.20
THR Thermon Group	$498.21M	1.91	$2.61 per share	10.98	$14.70 per share	1.95
VICR Vicor	$359.06M	5.69	$0.53 per share	85.14	$12.62 per share	3.58

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
PLPC Preformed Line Products	$37.09M	$7.89	20.36	∞	N/A	6.49%	9.16%	6.70%	7/30/2025 (Estimated)
POWL Powell Industries	$149.85M	$14.23	14.72	14.16	1.07	16.00%	35.43%	18.87%	7/29/2025 (Estimated)
THR Thermon Group	$53.51M	$1.57	18.32	14.14	N/A	10.74%	13.08%	8.40%	8/6/2025 (Estimated)
VICR Vicor	$6.13M	$0.52	86.98	∞	N/A	6.27%	4.13%	3.63%	7/22/2025 (Estimated)

Latest PLPC, POWL, VICR, and THR Earnings

Date	Quarter	Company	Consensus Estimate	Reported EPS	Beat/Miss	Gap EPS	Revenue Estimate	Actual Revenue
7/29/2025	Q3 2025	POWL Powell Industries	$3.73	N/A	N/A	N/A	$301.69 million	N/A
7/22/2025	Q2 2025	VICR Vicor	$0.18	N/A	N/A	N/A	$96.43 million	N/A
5/22/2025	Q4 2025	THR Thermon Group	$0.50	$0.56	+$0.06	$0.50	$133.65 million	$134.08 million
5/6/2025	Q2 2025	POWL Powell Industries	$3.34	$3.81	+$0.47	$3.81	$282.68 million	$278.63 million
5/1/2025	Q1 2025	PLPC Preformed Line Products	N/A	$2.33	N/A	$2.33	N/A	$148.54 million
4/29/2025	Q1 2025	VICR Vicor	$0.29	$0.06	-$0.23	$0.06	$96.63 million	$93.97 million

Compare Dividends

Company	Annual Payout	Dividend Yield	3-Year Dividend Growth	Payout Ratio	Years of Consecutive Growth
PLPC Preformed Line Products	$0.80	0.50%	N/A	10.14%	N/A
POWL Powell Industries	$1.07	0.51%	N/A	7.52%	3 Years
THR Thermon Group	N/A	N/A	N/A	N/A	N/A
VICR Vicor	N/A	N/A	N/A	N/A	N/A

Latest PLPC, POWL, VICR, and THR Dividends

Announcement	Company	Period	Amount	Yield	Ex-Dividend Date	Record Date	Payable Date
6/18/2025	PLPC Preformed Line Products	quarterly	$0.20	0.5%	7/1/2025	7/1/2025	7/20/2025
5/6/2025	POWL Powell Industries	quarterly	$0.2675	0.56%	5/21/2025	5/21/2025	6/18/2025

(Data available from 1/1/2013 forward)

Compare Debt

Company	Debt-to-Equity Ratio	Current Ratio	Quick Ratio
PLPC Preformed Line Products	0.06	3.08	1.81
POWL Powell Industries	N/A	2.00	1.78
THR Thermon Group	0.24	2.43	1.64
VICR Vicor	N/A	6.44	5.13

Compare Ownership

Institutional Ownership

Company	Institutional Ownership
PLPC Preformed Line Products	41.19%
POWL Powell Industries	89.77%
THR Thermon Group	99.76%
VICR Vicor	47.45%

Insider Ownership

Company	Insider Ownership
PLPC Preformed Line Products	33.80%
POWL Powell Industries	2.20%
THR Thermon Group	2.50%
VICR Vicor	31.30%

Compare Miscellaneous Stats

Company	Employees	Shares Outstanding	Free Float	Optionable
PLPC Preformed Line Products	3,401	4.94 million	3.27 million	Not Optionable
POWL Powell Industries	3,187	12.07 million	11.80 million	Optionable
THR Thermon Group	1,568	33.24 million	32.41 million	Optionable
VICR Vicor	1,100	45.21 million	31.06 million	Optionable

PLPC, POWL, VICR, and THR Headlines

Recent News About These Companies

Vicor (NASDAQ:VICR) Shares Down 5% - Here's Why

June 30 at 2:50 PM | marketbeat.com

Vicore Pharma Increases Shares and Votes Following Warrant Exercise

June 30 at 3:41 AM | tipranks.com

Vicor’s Q1 Earnings Call: Our Top 5 Analyst Questions

June 25, 2025 | msn.com

Vicor’s 2025 Strategy and Challenges: Hold Rating Amid Delays, Tariff Risks, and Legal Expenses

June 24, 2025 | tipranks.com

Vicor Elects Eleven Directors at Annual Meeting

June 23, 2025 | tipranks.com

Chapin Davis Inc. Boosts Position in Vicor Corporation (NASDAQ:VICR)

June 23, 2025 | marketbeat.com

Bronstein, Gewirtz & Grossman, LLC Is Investigating Vicor Corporation (VICR) And Encourages Stockholders to Connect

June 17, 2025 | accessnewswire.comA

Vicor Corporation (VICR) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Stockholders to Contact the Firm to Learn More About the Investigation

June 15, 2025 | accessnewswire.comA

GAMMA Investing LLC Purchases 62,602 Shares of Vicor Co. (NASDAQ:VICR)

June 13, 2025 | marketbeat.com

Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Vicor Corporation (VICR) and Encourages Stockholders to Learn More About the Investigation

June 12, 2025 | accessnewswire.comA

Millennium Management LLC Cuts Position in Vicor Co. (NASDAQ:VICR)

June 12, 2025 | marketbeat.com

Bronstein, Gewirtz & Grossman, LLC Encourages Vicor Corporation (VICR) Investors to Inquire about Securities Investigation

June 10, 2025 | accessnewswire.comA

Two Sigma Investments LP Lowers Holdings in Vicor Co. (NASDAQ:VICR)

June 10, 2025 | marketbeat.com

Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against Vicor Corporation (VICR) And Encourages Shareholders to Reach Out

June 8, 2025 | accessnewswire.comA

Vicor Corporation: Innovation Alone Won't Pay The Bills

June 6, 2025 | seekingalpha.com

Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Vicor Corporation (VICR) and Encourages Shareholders to Learn More About the Investigation

June 5, 2025 | accessnewswire.comA

Electronic Components Stocks Q1 Results: Benchmarking Littelfuse (NASDAQ:LFUS)

June 4, 2025 | msn.com

Vicor Corporation (VICR) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Investors to Contact the Firm to Learn More About the Investigation

June 3, 2025 | accessnewswire.comA

Bronstein, Gewirtz & Grossman, LLC Encourages Vicor Corporation (VICR) Shareholders to Inquire about Securities Investigation

June 1, 2025 | accessnewswire.comA

Squarepoint Ops LLC Makes New Investment in Vicor Co. (NASDAQ:VICR)

June 1, 2025 | marketbeat.com

Bank of America Corp DE Has $3.02 Million Stake in Vicor Co. (NASDAQ:VICR)

June 1, 2025 | marketbeat.com

New MarketBeat Followers Over Time

Media Sentiment Over Time

PLPC, POWL, VICR, and THR Company Descriptions

Preformed Line Products NASDAQ:PLPC

$160.44 +0.84 (+0.52%)

As of 03:12 PM Eastern

Preformed Line Products Company, together with its subsidiaries, designs and manufactures products and systems that are used in the construction and maintenance of overhead, ground-mounted, and underground networks for the energy, telecommunication, cable, data communication, and other industries. The company offers optical ground wire products to support, protect, terminate, and splice transmission and distribution lines, as well as bolted, welded, and compressed connectors for substations; and string hardware products, polymer insulators, wildlife protection, substation fittings, and motion control devices. It also provides rugged outside plant closures to protect and support wireline and wireless networks, such as copper cable or fiber optic cable from moisture, environmental hazards, and other contaminants; and hardware assemblies, pole line hardware, plastic products, cable dynamics/vibration solutions, interior/exterior connectors, tools, and urethane solutions that are used by energy, renewable energy, communications, cable, and special industries for various applications. The company serves public and private energy utilities and communication companies, cable operators, governmental agencies, contractors and subcontractors, distributors, and value-added resellers in the Americas, Europe, the Middle East, Africa, and the Asia-Pacific. It markets its products through a direct sales force, as well as through manufacturing representatives. Preformed Line Products Company was incorporated in 1947 and is headquartered in Mayfield Village, Ohio.

Powell Industries NASDAQ:POWL

$209.52 -0.93 (-0.44%)

As of 03:13 PM Eastern

Powell Industries, Inc., together with its subsidiaries, designs, develops, manufactures, sells, and services custom-engineered equipment and systems. The company's principal products include integrated power control room substations, custom-engineered modules, electrical houses, medium-voltage circuit breakers, monitoring and control communications systems, motor control centers, switches, and bus duct systems, as well as traditional and arc-resistant distribution switchgears and control gears. Its products have application in voltages ranging from 480 volts to 38,000 volts. The company also provide field service inspection, installation, commissioning, modification and repair, spare parts, retrofit and retrofill components for existing systems, and replacement circuit breakers for switchgear. It serves onshore and offshore production, liquefied natural gas facilities and terminals, pipelines, refineries, and petrochemical plants, as well as electric utility, light rail traction power, mining and metals, pulp and paper, data centers and other municipal, commercial, and industrial markets. The company has operations in the United States, Canada, the Middle East, Africa, Europe, Mexico, and Central and South America. Powell Industries, Inc. was founded in 1947 and is headquartered in Houston, Texas.

Thermon Group NYSE:THR

$28.70 +0.62 (+2.21%)

As of 03:12 PM Eastern

Thermon Group Holdings, Inc. provides engineered industrial process heating solutions for process industries in the United States and Latin America, Canada, Europe, the Middle East, Africa, and the Asia-Pacific. It offers heat tracing products, such as electric heat tracing cables, steam heating solutions, controls, monitoring and software, instrumentation, project services, industrial heating and filtration solutions, temporary electrical power distribution and lighting, and other products and services. The company also provides controls, monitoring, and software systems for the control and management of a heat trace system; environmental heating solutions under the Ruffneck, Norsemen, and Catadyne brands; process heating solutions under the Caloritech brand name; filtration solutions under the 3L Filters brand; rail and transit solutions under the Hellfire, Velocity, ArcticSense, and other brand names; and boilers under the Vapor Power, Precision Boilers, and Caloritech brands. In addition, it offers project services; transportation heating products, including track and switch heaters, accessories, control panels, rail heaters, gas blower accessories, and air curtains; transit heaters; and velocity heat products. Further, the company offers temporary power solutions; heating systems, such as engineered electric heat, explosion proof gas catalytic heaters, heaters for harshest environments, methane abatement, and engineered filtration system; electrically, steam, and fluid heated tubing bundles; and pre-insulated tubing and system accessories tubing bundles. It serves chemical and petrochemical, oil and gas, power generation, rail and transit, commercial, energy transition/decarbonization, mining and mineral processing, maritime/shipbuilding, semiconductors, pharmaceutical and biotechnology, food and beverage, data centers, and renewables industries through a network of sales and service professionals, and distributors. Thermon Group Holdings, Inc. was founded in 1954 and is headquartered in Austin, Texas.

Vicor NASDAQ:VICR

$45.20 -0.17 (-0.36%)

As of 03:13 PM Eastern

Vicor Corporation, together with its subsidiaries, designs, develops, manufactures, and markets modular power components and power systems for converting electrical power in the United States, Europe, the Asia Pacific, and internationally. The company offers a range of brick-format DC-DC converters; complementary components provide AC line rectification, input filtering, power factor correction, and transient protection; and input and output voltage, and output power products, as well as electrical and mechanical accessories. It also design, sells, and service custom power systems solutions. The company serves independent manufacturers of electronic devices, original equipment manufacturers, and their contract manufacturers in the aerospace and aviation, defense electronics, satellites, factory automation, instrumentation, test equipment, transportation, telecommunications and networking infrastructure and vehicles, and transportation markets. Vicor Corporation was incorporated in 1981 and is headquartered in Andover, Massachusetts.

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Comparative Price Performance Over Time