Rigetti Computing is down around 60% from its all-time high.Rigetti Computing (RGTI 2.45%) has taken investors on quite the roller-coaster ride in 2025. It entered the year on a strong note thanks to the quantum computing rally in December 2024. However, it crashed nearly 75% from its highs before January was over, thanks to comments from Nvidia CEO Jensen Huang about useful quantum computing being a long way away.Huang quickly pivoted from that stance, and the quantum computing start-up stocks started to r ...