MRK trailing returns
Merck & Co. Inc.'s 10-year annualized return is +11.7% per year (+201.2% cumulative). How Merck & Co. Inc. (MRK) has performed over the last day, week, month and year, over 5, 10 and 20 years, and since inception, through August 18, 2026 — cumulative and annualized, with dividends on or off.
Trailing returns by period#
To 2026-08-18. Annualized (CAGR) for windows of a year or more.
| Period | Path | Annualized | Cumulative |
|---|---|---|---|
| 1 day | — | -0.6% | |
| 1 week | — | +3.6% | |
| 1 month | — | +8.7% | |
| YTD | — | +29.4% | |
| 1 year | +64.6% | +64.6% | |
| 5 years | +14.7% | +98.7% | |
| 10 years | +11.7% | +201.2% | |
| 20 years | +10.3% | +610.1% | |
| Since inception (1970) | +10.1% | +23584.9% |
Growth of MRK#
Actual index level (solid); dashed lines are each window's constant-rate path from start to today.
Methodology#
Trailing returns measure from the closest close about N years before the latest close (2026-08-18). 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. Total return reinvests dividends (from MRK's split- and dividend-adjusted closes); price return excludes them. See the year-by-year returns for the calendar breakdown. Past performance does not predict future returns; not investment advice.
See also: S&P 500 · Nasdaq-100 · Dow Jones · Russell 2000 · US Bond Market · Gold · Silver · Bitcoin · Ethereum
FAQ#
- What is Merck & Co. Inc.'s 10-year return?
- Over the last 10 years, Merck & Co. Inc. (MRK) returned about +11.7% a year annualized (+201.2% cumulative total return).
- What is Merck & Co. Inc.'s 20-year annualized return?
- Over the last 20 years, Merck & Co. Inc. (MRK) compounded at about +10.3% a year (+610.1% cumulative).
- What is Merck & Co. Inc.'s return since inception?
- Since 1970, Merck & Co. Inc. (MRK) has compounded at about +10.1% a year — +23584.9% in total.