Merck (MRK) Total Return Calculator
$10,000 since Dec 2007, with and without reinvesting · data through Oct 2026
$10,000 invested in Merck (MRK) ten years ago, at the end of Oct 2016, was worth $36,230 at the end of Oct 2026 with every dividend reinvested: 13.7% a year, against $41,633 in the S&P 500. Since Dec 2007, $10,000 became $51,971 reinvested (9.1% a year), or $34,331 taking the dividends as cash, $7,346 of it paid out along the way.
MRK became
$51,971
S&P 500: $72,756
Return a year
9.1%
S&P 500: 11.1%
Payouts reinvested
$11,180
bought more shares
Worst drop
-56.4%
S&P 500: -48.2%
$10,000, Dec 2007 to Oct 2026
Payouts reinvested · S&P 500 reinvested
| Year | MRK total return | Paid out | S&P 500 |
|---|---|---|---|
| 2026 (part) | +45.0% | $918 | +11.7% |
| 2025 | +9.8% | $1,103 | +17.7% |
| 2024 | −6.3% | $1,015 | +24.9% |
| 2023 | +1.0% | $950 | +26.2% |
| 2022 | +49.4% | $890 | −18.2% |
| 2021 | +1.8% | $802 | +28.7% |
| 2020 | −7.2% | $682 | +18.3% |
| 2019 | +22.3% | $614 | +31.2% |
| 2018 | +39.9% | $510 | −4.6% |
| 2017 | −1.5% | $476 | +21.7% |
| 2016 | +15.0% | $451 | +12.0% |
| 2015 | −3.9% | $421 | +1.2% |
| 2014 | +16.9% | $399 | +13.5% |
| 2013 | +26.9% | $387 | +32.3% |
| 2012 | +13.1% | $362 | +16.0% |
| 2011 | +9.6% | $330 | +1.9% |
| 2010 | +2.9% | $303 | +15.1% |
| 2009 | +26.7% | $300 | +26.4% |
| 2008 | −45.3% | $269 | −36.8% |
"Paid out" is what your holding received that year. Month-end prices; no costs or taxes.
Key facts: MRK total return
Data as of · Source: SmarterDividends data
- $10,000 invested in Merck (MRK) at the end of Dec 2007, with dividends reinvested, was worth $51,971 at the end of Oct 2026: 9.1% a year, against $72,756 (11.1% a year) in the S&P 500.
- Over the 10 years to Oct 2026, MRK turned $10,000 into $36,230 with dividends reinvested, 13.7% a year.
- Over the 5 years to Oct 2026, MRK returned 14.6% a year with dividends reinvested (S&P 500: 12.0%).
- Taking MRK's dividends as cash instead of reinvesting them, the same $10,000 ended at $34,331, including $7,346 of cash received; reinvesting added $17,640.
- MRK's best calendar year in that time was 2022 (49.4%) and its worst 2008 (-45.3%), with dividends reinvested.
Cite this page
SmarterDividends, "Merck (MRK) Total Return Calculator," updated Nov 5, 2026, https://smarterdividends.com/stocks/MRK/total-return
MRK total return questions
If I invested $10,000 in MRK 10 years ago, how much would I have?
About $36,230 at the end of Oct 2026, with every dividend reinvested: 13.7% a year. Taking them as cash, you'd have shares worth $26,705 or so plus the cash you received. The same $10,000 in the S&P 500 became $41,633.
What is MRK's total return since Dec 2007?
420% in total, or 9.1% a year, through Oct 2026 with dividends reinvested. The share price alone rose 170%.
How much of MRK's return came from dividends?
About 41% of its yearly return since Dec 2007. Reinvesting them, rather than taking cash, left you $17,640 better off on a $10,000 start.
What was MRK's worst year?
2008, at -45.3% with dividends reinvested (S&P 500: -36.8%). Its deepest fall from a peak, on month-end values, was -56.4%.
How is total return calculated here?
From month-end prices: the adjusted price counts every dividend reinvested in the month it was paid; the plain price doesn't. The S&P 500 is SPY with its dividends reinvested. No trading costs or taxes.