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Protagonist Therapeutics, Inc. (PTGX): A Bull Case Theory 

We came across a bullish thesis on Protagonist Therapeutics, Inc. on BiotechBonanza’s Substack by AnotherBio. In this article, we will summarize the bulls’ thesis on PTGX. Protagonist Therapeutics, Inc.'s share was trading at $59.68 as of September 11th. PTGX’s trailing and forward P/E were 81.75 and 26.39 respectively according to Yahoo Finance.

Protagonist Therapeutics (PTGX) presents a compelling investment case following strong clinical progress and underappreciated fundamentals. The company, with a market cap of $3.6 billion and $615 million in net cash as of June 2025,...