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SMMT
Summit Therapeutics Inc. Common StockStock · Health Care
$13.32−$0.68 (-4.86%)as of market close, Aug 14, 2026
☾ After hours:$13.35+0.00%3:59 PM ET
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SMMT returns by year

Summit Therapeutics Inc. Common Stock has returned +0.6% annually (CAGR) since 2016. Calendar-year, monthly and weekly total returns for Summit Therapeutics Inc. Common Stock (SMMT) below, through August 14, 2026 — the most recent year is year-to-date.

Annualized (CAGR)
+0.6%
2016–2026
Average year
+70.5%
10 full years
Best year
+583.7%
2024
Worst year
-89.6%
2018
Positive years
5/10
50% up

Summit Therapeutics Inc. Common Stock returns by year (20162026)#

Calendar-year returns with each year's path and its dividend contribution (dividend return = total minus price return).

Summit Therapeutics Inc. Common Stock annual returns by year
YearTotal return
2026YTD
-23.8%
2025
-2.0%
2024
+583.7%
2023
-38.6%
2022
+58.0%
2021
-42.8%
2020
+193.8%
2019
+39.1%
2018
-89.6%
2017
+29.4%
2016
-25.6%

Total return by period

-400%-200%+0%+200%+400%
'16'17'18'19'20'21'22'23'24'25'26

Methodology#

Returns are total returns (dividends reinvested), computed from SMMT's split- and dividend-adjusted closes. The bar chart switches between annual and monthly periods. Annualized return is the compound annual growth rate over the full period. The current year is year-to-date. See also the periodic table of returns. Past performance does not predict future returns; not investment advice.

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FAQ#

What is Summit Therapeutics Inc. Common Stock's average annual return?
Since 2016, Summit Therapeutics Inc. Common Stock (SMMT) has returned about 0.6% a year (the compound annual growth rate) and an average calendar-year return of 70.5%.
What were Summit Therapeutics Inc. Common Stock's best and worst years?
Over 2016–2026, the best year was 2024 (+583.7%) and the worst was 2018 (-89.6%).
How often is Summit Therapeutics Inc. Common Stock up in a year?
5 of the 10 full years since 2016 were positive — about 50% of the time.