Quantum Computing Inc. Common

Day range

$6.41 – $6.66

Open

$6.55

Prev close

$6.56

Volume

2.87M

Market cap

$1.48B

Shares out

226.35M

P/E

—

P/S

151.14

P/B

0.93

P/FCF

—

ROE

-0.9%

ROA

-0.9%

Debt/Equity

0.00

Div yield

0.00%

As of Oct 23, 2026

• Investor presentationOct 2, 2026

  On October 2, 2026, Quantum Computing Inc. (the "Company") posted an updated copy of its investor presentation to its website at https://quantumcomputinginc.com. The presentation is attached to this Current Report on Form 8-K as Exhibit 99.1.

• Executive officer appointmentJul 22, 2026

  On July 17, 2026, the Board appointed Susan G. Hunt to the position of the Company's Chief Revenue Officer, effective immediately, succeeding Dr. Pouya Dianat. Susan brings more than 30 years of executive leadership experience, including senior leadership roles at Salesforce, Nuance Communications, LivePerson, and Sprint PCS.

• Charter amendmentJun 30, 2026

  On June 29, 2026, the Company filed a Certificate of Amendment to its Certificate of Incorporation (the "Certificate of Amendment") with the Secretary of State of the State of Delaware, which became effective upon filing. The Certificate of Amendment amends Section 4.1 of Article IV of the Company's Certificate of Incorporation to increase the total number of authorized shares of capital stock from 260,000,000 to 460,000,000, consisting of (a) 450,000,000 shares of Common Stock, par value $0.0001 per share (increased from 250,000,000), and (b) 10,000,000 shares of Preferred Stock, par value $0.0001 per share (unchanged).

• Acquisition agreementJun 23, 2026

  On June 22, 2026, Quantum Computing Inc., a Delaware corporation (the "Company"), entered into a Stock Purchase Agreement (the "Stock Purchase Agreement") with NHanced Semiconductors, Inc., a Delaware corporation ("NHanced")... pursuant to which the Company agreed to acquire all of the issued and outstanding shares of common stock of NHanced (the "Transaction").

• Investor presentationMay 18, 2026

  On May 13, 2026, Quantum Computing Inc. (the "Company") presented an investor presentation at an investor conference, and on May 14, 2026, the Company posted the presentation to the Company's website. A copy of the presentation is attached hereto and furnished herewith as Exhibit 99.1.

• NVDANvidia Corp+2.74%
• RGTIRigetti Computing, Inc. Common Stock+0.17%
• RGTIRigetti Computing, Inc. Common Stock+0.17%

Days to cover

8.6

Short interest

67.35M

Avg volume

7.83M

As of Sep 30, 2026 · reported to FINRA twice monthly.

• IonQ, Rigetti Computing, D-Wave Quantum, and Quantum Computing Inc. Are Shaking Wall Street to Its Core With This $1 Billion Warning
  negativeThe Motley Fool· Oct 20, 2026
• Rigetti Falls 21% in the Past Month: Hold or Fold the Stock Now?
  neutralZacks Investment Research· Oct 16, 2026
• Rigetti Faces Coherence Challenge as It Scales Quantum Computing
  neutralZacks Investment Research· Oct 12, 2026
• How IonQ Is Progressing in Quantum Computing and Space Operations
  positiveZacks Investment Research· Oct 7, 2026
• Rigetti Builds Commercial Momentum With Hybrid Quantum-HPC Strategy
  positiveZacks Investment Research· Oct 2, 2026