Thomas Diffely Analyst Performance

Managing Director, Director of Research at DA Davidson

Thomas Diffely is a stock analyst at DA Davidson focused in the computer and technology sector, covering 18 publicly traded companies. Over the past year, Thomas Diffely has issued 7 stock ratings, including and buy recommendations. While full access to Thomas Diffely's proprietary MarketBeat Analyst Ranking is reserved for MarketBeat All Access subscribers, the rating is updated daily to reflect the most recent analyst activity. This profile highlights Thomas Diffely's coverage history, rating activity, and performance tendencies — helping individual investors make more informed trading decisions.

Analyst Ranking: Subscribe to MarketBeat All Access for the analyst's recommendation accuracy rating MarketBeat
Average Return: 00.00% 12-Month ROI
Success Rate: 00.00% Profitable Ratings
Total Ratings: 36 Last 11 Years
Buy Recommendations: 80.00% 28 Buy Ratings
Companies Covered: 18 Unique Companies

Ratings Distribution

Rating	Percentage	Count
Strong Buy	0.0%	0 ratings
Buy	80.0%	28 ratings
Hold	20.0%	7 ratings
Sell	0.0%	0 ratings

Out of 35 total stock ratings issued by Thomas Diffely at DA Davidson, the majority (80.0%) have been Buy recommendations, followed by 20.0% Hold.

Best & Worst Calls

Best Call
0000.0%
SWKS
Jul 2014
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Worst Call
000.0%
SWKS
May 2015
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Exchange Coverage

Exchange	Percentage	Count
NASDAQ	83.3% of companies on NASDAQ	15 companies
NYSE	16.7% of companies on NYSE	3 companies

Thomas Diffely, an analyst at DA Davidson, currently covers 18 companies listed on NASDAQ and NYSE, with the majority traded on NASDAQ.

Coverage Focus

Sector Icon	Sector	Percentage
	Computer and Technology 16 companies	88.9%
	Miscellaneous 2 companies	11.1%

Thomas Diffely of DA Davidson specializes in stock coverage within the Computer and Technology sector, with additional focus on companies.

Coverage Industries

Industry	Percentage
ELEC COMP - SEMIC 4 companies	22.2%
ELEC - MANUFT MACH 2 companies	11.1%
Miscellaneous 2 companies	11.1%
SEMI - RADIO FREQ 2 companies	11.1%
SEQPT - PHTOMASK 1 company	5.6%
COMP - SERVICES 1 company	5.6%
ELEC PRODS - MISC 1 company	5.6%
SEMICONDUCTORS & RELATED DEVICES 1 company	5.6%
COMPUTER PERIPHERAL EQUIPMENT 1 company	5.6%
COMP - SOFTWARE 1 company	5.6%
PROCESS CONTROL INSTRUMENTS 1 company	5.6%
NANOTECHNOLOGY 1 company	5.6%

About Thomas Diffely

Tom Diffely is Managing Director, Director of Research, and joined the firm in 2010. He previously was a senior research analyst focused on semiconductor capital equipment and technical design software. He spent more than a decade as an equity analyst at Merrill Lynch in San Francisco, where he covered a variety of semiconductor equipment names, and three years as a global product manager at Applied Materials. He received honorable mention in Institutional Investor’s survey of the top semiconductor and semiconductor capital equipment analysts in 2006 and 2007. Tom holds an MBA from the Haas School of Business at the University of California, Berkeley, a bachelor’s degree in engineering from Harvey Mudd College and the Chartered Financial Analyst® designation.

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Timeframe

Start Date

End Date

Rating

12-Month ROIAll ROI

Export to Excel

Company	Report Date	Action	Report Date Price	12-Month Price Target	Rating
ACLS Axcelis Technologies	8/6/2025	Boost Price Target	$75.77	$90.00	Buy
ICHR Ichor	8/6/2025	Lower Price Target	$14.51	$35.00	Buy
PLAB Photronics	5/29/2025	Lower Price Target	$17.01	$30.00	Buy
KLIC Kulicke and Soffa Industries	5/8/2025	Lower Price Target	$32.04	$55.00	Buy
ICHR Ichor	5/6/2025	Lower Price Target	$16.00	$45.00	Buy
AMKR Amkor Technology	4/29/2025	Lower Price Target	$17.48	$30.00	Buy
PDFS PDF Solutions	4/14/2025	Lower Price Target	$17.96	$24.00	Buy

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