Rigetti Computing (RGTI -1.00%) stock got hit with substantial sell-offs in the first half of this year. The company's share price fell 22.3% across the stretch, according to data from S&P Global Market Intelligence. The stock lost ground even as the S&P 500 (^GSPC 0.26%) saw a 5.5% increase.After skyrocketing 1,449% across 2024's trading, the quantum computing specialist's share price saw a significant pullback in 2025's first half. On the other hand, the stock has been posting big gains in July's trading ...