Question 1

What is IonQ's P/E ratio?

Accepted Answer

IonQ (IONQ) P/E ratio is 76.1× as of June 5, 2026. The ratio is calculated by dividing market capitalisation by trailing twelve-month earnings (net income), using USD-normalised financials (IAS 21 exchange-rate translation for non-USD reporters).

Question 2

How is the P/E ratio calculated?

Accepted Answer

P/E = Share Price ÷ Trailing Twelve-Month (TTM) Diluted EPS, or equivalently Market Capitalisation ÷ TTM Net Income. All inputs are sourced from audited GAAP/IFRS filings and translated to USD using period-end exchange rates so the multiple is comparable across companies and currencies.

Question 3

What is the P/E ratio?

Accepted Answer

The price-to-earnings (P/E) ratio, also called the earnings multiple, measures how much investors pay per dollar of a company's trailing twelve-month (TTM) earnings. It is calculated as share price ÷ TTM diluted EPS (equivalent to market capitalisation ÷ TTM net income). A higher P/E implies the market is pricing in stronger future earnings growth or lower risk; a lower P/E can signal slower expected growth, higher risk, or potential undervaluation.

Question 4

What is a good P/E ratio for IonQ?

Accepted Answer

There is no universal "good" P/E. As a rule of thumb, the S&P 500 has historically averaged a P/E in the mid-to-high teens; mature, slow-growth businesses commonly trade in the 10–18× range, while high-growth or asset-light companies often trade at 25–50×+. What matters is the comparison to sector peers and to the company's own historical range. For IonQ specifically, the relevant sector benchmark is the current sector median of 29.6×.

Question 5

Is IonQ's P/E ratio high or low?

Accepted Answer

IonQ's P/E ratio of 76.1× is above its own 5-year average of 37.3× and above the sector median of 29.6×. That places the current reading at the 40th percentile of its 10-year history. A higher multiple usually reflects stronger expected growth, lower perceived risk, or higher returns on capital; a lower multiple reflects the opposite.

Question 6

What is IonQ's historical P/E ratio range?

Accepted Answer

In the available daily series, IonQ (IONQ) P/E ratio has ranged from a low of 63.9× in 2026 to a high of 96.6× in 2026. The 5-year average is 37.3× and the 5-year median is 37.3×.

Question 7

Why does IonQ's P/E ratio change over time?

Accepted Answer

Valuation multiples move with two inputs: the numerator (market capitalisation, which tracks the share price) and the denominator (earnings). Share-price changes — driven by interest rates, earnings expectations, risk appetite, and broader market sentiment — typically dominate short-term moves, while changes in the underlying fundamental drive the longer-term trend. As a result, the ratio can rise during stock-price rallies even if the business itself has not become more valuable, and fall during sell-offs even when fundamentals are improving.


2025	$15.51B	−$560.53M	—	—	Dec 31, 2025
2024	$9.10B	−$331.65M	—	—	Dec 31, 2024
2023	$2.54B	−$157.77M	—	—	Dec 31, 2023
2022	$687.09M	−$48.51M	—	—	Dec 31, 2022
2021	$3.21B	−$106.19M	—	—	Dec 31, 2021
2020	$2.08B	−$15.42M	—	—	Dec 31, 2020


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P/E Ratio for IonQ (IONQ)

P/E Ratio daily chart for IonQ (IONQ)

Historical P/E Ratio for IonQ (IONQ) from 2020 to 2025

About P/E Ratio at IonQ (IONQ)

Sector peers by P/E Ratio — chart

Sector peers by P/E Ratio — table

Frequently asked questions

IonQ (IONQ) Key Financials

P/E Ratio daily chart for IonQ (IONQ)

Historical P/E Ratio for IonQ (IONQ) from 2020 to 2025

About P/E Ratio at IonQ (IONQ)

Sector peers by P/E Ratio — chart

Sector peers by P/E Ratio — table

Frequently asked questions

+What is IonQ's P/E ratio?

+How is the P/E ratio calculated?

+What is the P/E ratio?

+What is a good P/E ratio for IonQ?

+Is IonQ's P/E ratio high or low?

+What is IonQ's historical P/E ratio range?

+Why does IonQ's P/E ratio change over time?

IonQ (IONQ) Key Financials