Quantum Computing, Inc. (QUBT) P/E Ratio History
Historical price-to-earnings valuation from 2026 to 2026
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QUBT Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 6, 2026, Quantum Computing, Inc. (QUBT) trades at a price-to-earnings ratio of -95.1x, with a stock price of $10.46 and trailing twelve-month earnings per share of $-0.09.
Compared to the Technology sector median P/E of 27.5x, QUBT trades at a 446% discount to its sector peers. The sector includes 357 companies with P/E ratios ranging from 0.0x to 175.4x.
Relative to the broader market, QUBT trades at a notable discount to the S&P 500 median P/E of 25.2x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our QUBT DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
QUBT P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $212B | 20.2Lowest | 1.63 | +74%Best | |
| $4.8T | 36.8 | 1.23 | +34% | |
| $3.1T | 30.3 | 1.61 | +16% | |
| $5.0T | 42.4 | 0.44Best | +67% | |
| $340B | 49.5 | 2.88 | +1% |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
See QUBT's True Return
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DCF intrinsic value, peer multiples, and analyst estimates — see what the stock is really worth.
View ValuationCompare QUBT vs NVDA
Side-by-side business, growth, and profitability comparison vs NVIDIA Corporation.
Start ComparisonQUBT — Frequently Asked Questions
Quick answers to the most common questions about buying QUBT stock.
Is QUBT stock overvalued or undervalued?
QUBT current P/E: -95.1x. 5-year average P/E: N/A. Percentile: N/A.
How does QUBT's valuation compare to peers?
Quantum Computing, Inc. P/E of -95.1x compares to sector median of 27.5x. The discount suggests lower growth expectations or higher risk.
What is QUBT's PEG ratio?
QUBT PEG ratio is N/A. Above 2.0 indicates premium valuation relative to growth rate. Historical P/E data spans 2026-2026.