Validea Joseph Piotroski Strategy Daily Upgrade Report - 8/12/2025
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Aug 12 2025
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Source: NASDAQ.COM
Validea's Investment Strategy: Validea's Book/Market Investor model, based on Joseph Piotroski's strategy, has upgraded Navigator Holdings Ltd. (NVGS) from 0% to 90% and Star Bulk Carriers Corp. (SBLK) from 0% to 80%, indicating strong interest in both stocks due to their improving financial fundamentals.
About Joseph Piotroski and Validea: Joseph Piotroski is an accountant and professor known for his value investing strategy that significantly outperformed the market, while Validea provides investment research based on strategies from renowned investors like Piotroski, Buffett, and Graham.
Analyst Views on SBLK
About SBLK
Star Bulk Carriers Corp is a Greece-based global shipping company. The Company owns and operates a diverse fleet of dry bulk vessels that transport bulk commodities, including iron ore, minerals and grain, bauxite, fertilizers and steel products, along worldwide shipping routes. The Company has a fleet of 112 vessels, with an aggregate capacity of 12.5 million dwt, consisting of Newcastlemax, Capesize, Post Panamax, Kamsarmax, Panamax, Ultramax and Supramax vessels with carrying capacities between 53,489 dwt and 209,537 dwt. The Company maintains executive offices in Athens, Greece and in Limassol, Cyprus.
About the author
Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
