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 is trading up in premarket Tuesday after the long U.S. holiday break. Shares stood at $65.43 on Public.com at 6:00 a.m. ET, 2.8% higher than the last closing price. Traders are still chasing quantum names following Washington's new push for federal investment in the sector.

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 Inc. stock jumped 12.24% to $58.89 at the close Thursday as quantum-computing names caught a bid after reports of new federal funding. That move topped the wider market, with the Dow up 0.55%, S&P 500 up 0.17%, and Nasdaq rising 0.09%.

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.