Sep. 2 at 2:44 AM
$XNDU
The Quantum Index (TQIX) — September 1, 2026
The Quantum Index began September under renewed selling pressure, closing at a new post-launch low of 927.65 points, down from 963.06 on August 31. This represents a 3.68% daily decline, extending the weakness that characterized the latter part of August.
TQIX is now 7.23% below its 1,000-point launch base. From its record high of 1,113.73 points, the index has declined approximately 16.71%.
September 1 snapshot
Closing Index: 927.65
Daily Change: −3.68%
Point Change: −35.41
Previous Close: 963.06
Since Launch: −7.23%
Launch Base: 1,000.00
Record Peak: 1,113.73
Distance from Peak: −16.71%
Best Performer: IQMX −0.10%
Lagging Constituent: XNDU −7.71%
The September 1 session reflected broad-based weakness across the nine pure-play quantum computing stocks, with even the day's best performer, IQMX, finishing slightly negative. XNDU led the declines with a 7.71% loss.