NASDAQ:IONQ 12 May 2026 - 23 June 2026

IonQ shares picked up 3.4% to end at $56.55 Thursday, heading into the long U.S. market weekend with some gains. After hours, the price edged down to $56.00. Still, the stock ended the week below last Friday’s close at $57.85.

IonQ stock is entering the new week with investors split between enthusiasm for quantum computing and caution over valuation. Shares finished Friday at $57.85, down 0.24%, after trading between $56.18 and $60.18 on volume of about 24.7 million shares, according to market data. The move leaves IonQ with a market capitalization near $21.5 billion, a size that already prices in years of rapid growth for a company still building commercial scale.

IonQ stock finished up 8.07% at $63.64 Friday, bringing its weekly gain to about 22.5%. Volume hit 52.65 million shares as the price topped out at $65.80 late in the session, with trading picking up ahead of the U.S. market holiday.

IonQ shares jumped about 8% in premarket trading Thursday, picking up steam during a wild period for one of the top pure-play quantum-computing names. The stock was quoted at $52.47 ahead of the U.S. market open, up $4.02 from where it closed Wednesday.