Quantum Corporation (QMCO) P/E Ratio History
Historical price-to-earnings valuation from 1996 to 2018
Loading P/E history...
QMCO Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 8, 2026, Quantum Corporation (QMCO) trades at a price-to-earnings ratio of -0.4x, with a stock price of $9.13 and trailing twelve-month earnings per share of $-7.36.
The current P/E is 100% below its 5-year average of 1069.7x. Over the past five years, QMCO's P/E has ranged from a low of 8.3x to a high of 16307.7x, placing the current valuation at the 0th percentile of its historical range.
Compared to the Technology sector median P/E of 27.7x, QMCO trades at a 101% discount to its sector peers. The sector includes 359 companies with P/E ratios ranging from 0.0x to 184.2x.
Relative to the broader market, QMCO trades at a notable discount to 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 QMCO 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.
QMCO P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $22B | 19.9 | 1.99 | +22% | |
| $22B | 142.5 | - | +52% | |
| $20B | 20.0 | 0.33Best | +0% | |
| $952M | 14.5Lowest | - | -2% | |
| $167B | 113.2 | 9.20 | +328%Best | |
| $157B | 90.6 | - | +296% | |
| $217B | 20.7 | 1.67 | +74% | |
| $2.9T | 37.8 | 1.35 | +30% |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
QMCO Historical P/E Data (1996–2018)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2018 Q1 | Fri Jun 30 2017 00:00:00 GM | $156.20 | $1.40 | 111.6x | -82% |
| FY2017 Q4 | Fri Mar 31 2017 00:00:00 GM | $139.20 | $2.00 | 69.6x | -88% |
| FY2016 Q1 | $268.80 | $5.58 | 48.2x | -92% | |
| FY2015 Q4 | $256.00 | $8.78 | 29.2x | -95% | |
| FY2012 Q3 | Sat Dec 31 2011 00:00:00 GM | $384.00 | $0.45 | 860.6x | +42% |
| FY2012 Q2 | Fri Sep 30 2011 00:00:00 GM | $289.60 | $2.05 | 141.5x | -77% |
| FY2012 Q1 | $528.00 | $2.05 | 258.0x | -57% | |
| FY2011 Q4 | $403.20 | $3.65 | 110.6x | -82% | |
| FY2011 Q3 | Fri Dec 31 2010 00:00:00 GM | $595.20 | $1.62 | 367.2x | -39% |
| FY2011 Q2 | $339.20 | $0.02 | 16307.7x | +2597% | |
| FY2011 Q1 | Wed Jun 30 2010 00:00:00 GM | $300.80 | $4.82 | 62.4x | -90% |
| FY2010 Q4 | Wed Mar 31 2010 00:00:00 GM | $420.80 | $3.22 | 130.7x | -78% |
Average P/E for displayed period: 604.7x
See QMCO's True Return
Price is only half the story. See total return with reinvested dividends.
Launch CalculatorIs QMCO Undervalued?
DCF intrinsic value, peer multiples, and analyst estimates — see what the stock is really worth.
View ValuationCompare QMCO vs NVDA
Side-by-side business, growth, and profitability comparison vs NVIDIA Corporation.
Start ComparisonQMCO — Frequently Asked Questions
Quick answers to the most common questions about buying QMCO stock.
Is QMCO stock overvalued or undervalued?
QMCO trades at -0.4x P/E, below its 5-year average of 1069.7x. At the N/A percentile of historical range, the stock is priced at a discount to its own history.
How does QMCO's valuation compare to peers?
Quantum Corporation P/E of -0.4x compares to sector median of 27.7x. The discount suggests lower growth expectations or higher risk.
What is QMCO's PEG ratio?
QMCO PEG ratio is N/A. Above 2.0 indicates premium valuation relative to growth rate. Historical P/E data spans 1996-2018.