Quantumsphere Acquisition Corp. Units (QUMSU) P/E Ratio History
Fairly ValuedTrading at 86.1x, near 5Y avg of 84.3x · 100th percentile · In line with own history · Data 2025–2025
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P/E Ratio Analysis
As of June 30, 2026, Quantumsphere Acquisition Corp. Units (QUMSU) trades at a price-to-earnings ratio of 86.1x, with a stock price of $10.33 and trailing twelve-month earnings per share of $0.18.
The current P/E is roughly in line with its 5-year average of 84.3x. Over the past five years, QUMSU's P/E has ranged from a low of 84.3x to a high of 84.3x, placing the current valuation at the 100th percentile of its historical range.
Compared to the Financial Services sector median P/E of 14.1x, QUMSU trades at a 509% premium to its sector peers. The sector includes 801 companies with P/E ratios ranging from 0.0x to 162.0x.
Relative to the broader market, QUMSU commands a significant premium over the S&P 500 median P/E of 25.1x. 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 QUMSU 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.
QUMSU Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
QUMSU P/E vs Peers
Generalist SPACs and blank checks peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $302M | 54.6 | - | - | |
| $314B | 19.9 | 1.27 | +27% | |
| $334B | 20.8 | 2.17 | +28% | |
| $883B | 16.4Lowest | 0.93Best | +2% | |
| $13B | 23.8 | 2.11 | +55%Best | |
| $4B | 18.6 | - | -19% |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
QUMSU Historical P/E Data (2025–2025)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2025 Q4 | - | $10.11 | $0.12 | 84.3x | +0% |
Average P/E for displayed period: 84.3x
Intrinsic Valuation
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Historical Returns
1+ years return with dividends reinvested.
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Peer Comparison
Compare growth, multiples, and margins vs sector.
QUMSU — Frequently Asked Questions
Quick answers to the most common questions about buying QUMSU stock.
What is QUMSU's P/E ratio?
Quantumsphere Acquisition Corp. Units (QUMSU) trailing twelve-month P/E ratio is 86.1x, based on TTM diluted EPS of $0.18. The 5-year average P/E is 84.3x and the historical range spans 84.3x to 84.3x.
Is QUMSU stock overvalued or undervalued?
QUMSU trades at 86.1x P/E, near its 5-year average of 84.3x. The 100th percentile ranking within the 84.3x–84.3x historical range places valuation within normal bounds.
Is QUMSU stock expensive?
QUMSU is fairly valued relative to its own history. The current P/E of 86.1x is near the 5-year average of 84.3x (100th percentile of historical range).
What is QUMSU's historical P/E range?
Over the past 5 years, QUMSU's P/E ratio has ranged from 84.3x to 84.3x, with a median of 84.3x and an average of 84.3x. The current P/E of 86.1x places the stock at the 100th percentile of this range. Full historical data spans 2025–2025.
How does QUMSU's P/E compare to the S&P 500?
QUMSU trades at 86.1x P/E versus the S&P 500 median of 25.1x. The 243% premium to the market typically reflects higher expected earnings growth or quality.
How does QUMSU's valuation compare to Financial Services peers?
Quantumsphere Acquisition Corp. Units P/E of 86.1x compares to the Financial Services sector median of 14.1x. The premium reflects expected growth above peers or stronger fundamentals. See the peer comparison table on this page for ticker-by-ticker P/E and PEG.
What is QUMSU's PEG ratio?
QUMSU PEG ratio is N/A, based on a P/E of 86.1x and EPS growth of 1152.6%. PEG normalises P/E by growth and helps compare stocks with different earnings trajectories.
What is QUMSU's earnings yield?
QUMSU earnings yield is 1.16%, the inverse of its 86.1x P/E ratio. Earnings yield represents the percentage of each dollar invested that the company earns. It can be compared directly to bond yields to assess relative attractiveness of stocks versus fixed income.