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Summit Therapeutics Inc. (SMMT)

Summit Therapeutics Inc. (SMMT) stock — the fundamentals (P/E, market cap, valuation) and every material event, decoded in plain English.

Summit Therapeutics Inc. (SMMT) stock — financials & valuation

Key numbers for Summit Therapeutics Inc. (SMMT): P/E ratio, market cap, profit margins, returns, and whether the stock looks cheap or expensive versus its own 5-year range.

AllSight quality score: 31/100 — a percentile rank of Summit Therapeutics Inc.’s fundamentals against Manufacturing peers, weakest on profitability. A quality ranking, not a price prediction.

Market cap$13.3B
EV / EBITDA-14.7×
Return on equity-135.9%
ROIC-415.4%
Debt / equity0.0×
Dividend yield0.0%

Is Summit Therapeutics Inc. overvalued? P/B looks fair vs its 5-year range.

Independent of the events above — derived from Summit Therapeutics Inc.’s own financial statements and shown as context, never as advice.

Sep 28, 2026$2B strategic investment
Summit Therapeutics lands $2B AstraZeneca investment, but gives strategic rights
Sep 15, 2026OS update
Summit’s WCLC data reinforce ivonescimab survival benefit ahead of FDA decision
Sep 14, 2026Above the bar
Summit Therapeutics’ ivonescimab extends survival in HARMONi-2, but global proof remains pending
Sep 3, 2026Above the bar
Summit’s ivonescimab clears HARMONi-2 survival bar, but China-only details await
Aug 26, 2026Above the bar
Summit Therapeutics’ ivonescimab clears biliary-cancer OS bar, but data stay topline
Aug 5, 2026
Expands ivonescimab into bladder cancer, but no near-term efficacy readout.
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