Quantum Corporation trailing returns
Quantum Corporation's 10-year return is -17.8% a year (CAGR) (-85.9% cumulative). How Quantum Corporation (QMCO) has performed over the last day, week, month and year, over 5, 10 and 20 years, and since inception, through October 20, 2026 — price return and dividends side by side, with the worst drop inside each window.
Trailing returns by period#
To 2026-10-20. Price return + dividends = total return. Per year (CAGR) for windows of a year or more, with the cumulative total return beneath. Worst drop: the deepest fall in the price from a high inside the window, and when it bottomed.
| Period | Price | DivsDividends | Total | Worst drop |
|---|---|---|---|---|
| 1 day | +3.7% | +0.0% | +3.7% | — |
| 5 days | -28.4% | +0.0% | -28.4% | -31.0%Oct 19 |
| 1 month | -24.3% | +0.0% | -24.3% | -46.9%Oct 19 |
| YTD | +194.4% | +0.0% | +194.4% | -46.9%Oct 19 |
| 1 year | +83.5% | +0.0% | +83.5% | -58.8%Mar 2026 |
| 5 years | -30.2% | +0.0% | -30.2%-83.4% | -98.3%Sep 2024 |
| 10 years | -17.8% | +0.0% | -17.8%-85.9% | -98.7%Sep 2024 |
| 20 years | -13.8% | +0.0% | -13.8%-94.9% | -99.6%Sep 2024 |
| Since inception (1999) | -17.1% | +0.0% | -17.1%-99.4% | -99.9%Sep 2024 |
Growth of QMCO#
Actual level with dividends reinvested (solid); dashed lines are each window's constant-rate path from start to today.
- 5 years-30.2%/year · -83.4%
- 10 years-17.8%/year · -85.9%
- 20 years-13.8%/year · -94.9%
- Since inception (1999)-17.1%/year · -99.4%
Methodology#
Trailing returns measure from the closest close about N years before the latest close (2026-10-20). Cumulative return is the total change over the window; annualized return is the compound annual growth rate (CAGR), shown for windows of a year or more. Price return is the change in QMCO's closing price; total return reinvests dividends (from its split- and dividend-adjusted closes); the dividends column is the difference between the two. The worst drop is the largest fall in the closing price from a high to a later low inside the window, the way a drawdown is usually quoted. See the year-by-year returns for the calendar breakdown. Past performance does not predict future returns; not investment advice.
FAQ#
- What is Quantum Corporation's 10-year return?
- Over the last 10 years, Quantum Corporation (QMCO) returned about -17.8% a year annualized (-85.9% cumulative total return).
- What is Quantum Corporation's 20-year annualized return?
- Over the last 20 years, Quantum Corporation (QMCO) compounded at about -13.8% a year (-94.9% cumulative).
- What is Quantum Corporation's return since inception?
- Since 1999, Quantum Corporation (QMCO) has compounded at about -17.1% a year — -99.4% in total.