What if you'd held OMC?
A $1,000 investment in Omnicom Group Inc. (OMC) at the month-end close of 1980-03 would be worth $171,768 at the close of 2026-08 — +17076.8% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $75,502.
Your scenario
Result
If you'd bought $1,000 at the start of each year
Value of $1,000 invested on January 1 of each year, held to 2026-08, dividends included.
Every year, $1,000 from 1980
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1980 | $1,000 | — |
| 1981 | $987 | -1.3% |
| 1982 | $1,180 | +19.7% |
| 1983 | $1,055 | -10.6% |
| 1984 | $987 | -6.5% |
| 1985 | $1,139 | +15.4% |
| 1986 | $1,131 | -0.6% |
| 1987 | $1,153 | +2.0% |
| 1988 | $1,211 | +5.0% |
| 1989 | $1,660 | +37.1% |
| 1990 | $1,560 | -6.1% |
| 1991 | $2,233 | +43.2% |
| 1992 | $2,988 | +33.8% |
| 1993 | $3,447 | +15.4% |
| 1994 | $3,961 | +14.9% |
| 1995 | $5,826 | +47.1% |
| 1996 | $7,275 | +24.9% |
| 1997 | $13,667 | +87.9% |
| 1998 | $18,908 | +38.3% |
| 1999 | $32,871 | +73.8% |
| 2000 | $27,474 | -16.4% |
| 2001 | $29,899 | +8.8% |
| 2002 | $21,853 | -26.9% |
| 2003 | $29,888 | +36.8% |
| 2004 | $29,193 | -2.3% |
| 2005 | $29,784 | +2.0% |
| 2006 | $36,973 | +24.1% |
| 2007 | $33,961 | -8.1% |
| 2008 | $19,539 | -42.5% |
| 2009 | $28,971 | +48.3% |
| 2010 | $34,582 | +19.4% |
| 2011 | $34,440 | -0.4% |
| 2012 | $39,535 | +14.8% |
| 2013 | $60,358 | +52.7% |
| 2014 | $64,531 | +6.9% |
| 2015 | $64,766 | +0.4% |
| 2016 | $74,751 | +15.4% |
| 2017 | $65,836 | -11.9% |
| 2018 | $68,427 | +3.9% |
| 2019 | $78,263 | +14.4% |
| 2020 | $62,939 | -19.6% |
| 2021 | $76,707 | +21.9% |
| 2022 | $88,763 | +15.7% |
| 2023 | $97,255 | +9.6% |
| 2024 | $99,677 | +2.5% |
| 2025 | $97,064 | -2.6% |
| 2026 | $107,276 | +10.5% |
Best and worst month-end to buy
The best single month-end close to have bought OMC was 1980-03 ($0.51): $1,000 then is $171,768 today. The worst was 2024-11 ($98.18): $1,000 then is $890.
FAQ
What would $1,000 in OMC be worth today?
A $1,000 investment in Omnicom Group Inc. (OMC) at the start of 1980 would be worth about $171,768 today, a total return of +17076.8%. Dividends are reinvested in these figures.
What were the best and worst years for OMC?
Omnicom Group Inc. (OMC)'s strongest calendar year since 1980 was 1997, a +87.9% return — $1,000 held through that year became about $1,879 by year-end. Its weakest year was 2008, at -42.5%.
Does the calculator include dividends and splits?
Yes where available. Prices are adjusted for both stock splits and reinvested dividends (total return), the same measure brokerages use.
How much would $100 per month in OMC have grown?
Investing $100 at the end of every month since 1980-03 would have grown to about $1.6M on $55,800 invested.
Did OMC beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $75,502. OMC beat the S&P 500 by +127.5% in total return.
Is this investment advice?
No. What If I'd Held is an entertainment and education tool. Every number is a historical calculation, not a prediction, and past performance never guarantees future results.
Methodology
Omnicom Group Inc. (OMC) historical total-return data from 1980-03 to 2026-08, reduced to month-end closes for the tables above.
Returns use adjusted close prices from Yahoo Finance historical data — adjusted for stock splits and reinvested dividends — the same convention used by major brokerages. A "year" scenario invests $1,000 at the prior December's month-end close and values it at the latest available month-end close. Non-USD amounts are converted at historical month-end exchange rates (Yahoo Finance): to USD on the buy date and back to your currency at the latest rate, so the return reflects the currency move as well as the asset.
Month-end resolution means intra-month extremes are not captured in tables; the calculator uses exact trading-day closes where daily data is available. Figures ignore taxes, fees, and the currency effects of non-USD listings. History is not a forecast. What If I'd Held is entertainment, not investment advice.
What if you'd held…
Data: adjusted close prices via Yahoo Finance. As of 2026-08. Not financial advice.