Xenon Pharmaceuticals Down over 28%, on Pace for Largest Percent Decrease Since March 2017 -- Data Talk

Xenon Pharmaceuticals Inc. (XENE) is currently at $41.09, down $16.26 or 28.35%

--Would be lowest close since Feb. 5, 2026, when it closed at $40.39

--On pace for largest percent decrease since March 24, 2017, when it fell 52.79%

--Snaps a two-day winning streak

--Down 29.94% this week; worst weekly performance since the week ending March 24, 2017, when it fell 42.59%

--Down 31.77% month-to-date

--Down 8.32% year-to-date

--Down 42.09% from its all-time closing high of $70.96 on July 9, 2026

--Up 11.2% from 52 weeks ago (Sept. 19, 2025), when it closed at $36.95

--Down 42.09% from its 52-week closing high of $70.96 on July 9, 2026

--Up 12.51% from its 52-week closing low of $36.52 on Sept. 25, 2025

--Traded as low as $39.83; lowest intraday level since Jan. 20, 2026, when it hit $39.29

--Down 30.55% at today's intraday low; largest intraday percent decrease since March 24, 2017, when it fell as much as 56.35%

All data as of 10:38:06 AM ET

Source: Dow Jones Market Data, FactSet

(END) Dow Jones Newswires

September 18, 2026 10:41 ET (14:41 GMT)