Arqit Quantum is trading at $22.90, down 5.95%, as higher Treasury yields pressure technology valuations.
- Broader risk-off pressure hit growth and technology stocks on August 18, 2026.
- Rising oil prices, fading U.S.-Iran peace prospects, and lower Nasdaq-related futures added pressure.
- No fresh company-specific announcement was identified; Reuters reported that higher yields weighed particularly on heavyweight technology stocks.