What if you'd held MZTI?
A $1,000 investment in The Marzetti Company (MZTI) at the month-end close of 1980-03 would be worth $258,673 at the close of 2026-08 — +25767.3% 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 | $1,258 | +25.8% |
| 1982 | $1,957 | +55.6% |
| 1983 | $2,226 | +13.7% |
| 1984 | $1,917 | -13.9% |
| 1985 | $2,194 | +14.5% |
| 1986 | $2,961 | +35.0% |
| 1987 | $2,815 | -4.9% |
| 1988 | $3,140 | +11.5% |
| 1989 | $4,330 | +37.9% |
| 1990 | $3,020 | -30.3% |
| 1991 | $7,359 | +143.7% |
| 1992 | $11,261 | +53.0% |
| 1993 | $17,732 | +57.5% |
| 1994 | $15,316 | -13.6% |
| 1995 | $19,762 | +29.0% |
| 1996 | $24,845 | +25.7% |
| 1997 | $30,929 | +24.5% |
| 1998 | $26,879 | -13.1% |
| 1999 | $28,256 | +5.1% |
| 2000 | $24,574 | -13.0% |
| 2001 | $31,760 | +29.2% |
| 2002 | $35,643 | +12.2% |
| 2003 | $42,053 | +18.0% |
| 2004 | $40,826 | -2.9% |
| 2005 | $38,043 | -6.8% |
| 2006 | $46,664 | +22.7% |
| 2007 | $42,948 | -8.0% |
| 2008 | $38,352 | -10.7% |
| 2009 | $56,977 | +48.6% |
| 2010 | $67,139 | +17.8% |
| 2011 | $83,243 | +24.0% |
| 2012 | $90,742 | +9.0% |
| 2013 | $118,034 | +30.1% |
| 2014 | $127,829 | +8.3% |
| 2015 | $167,879 | +31.3% |
| 2016 | $209,030 | +24.5% |
| 2017 | $194,425 | -7.0% |
| 2018 | $270,679 | +39.2% |
| 2019 | $249,341 | -7.9% |
| 2020 | $291,108 | +16.8% |
| 2021 | $267,055 | -8.3% |
| 2022 | $324,719 | +21.6% |
| 2023 | $279,197 | -14.0% |
| 2024 | $296,229 | +6.1% |
| 2025 | $287,544 | -2.9% |
| 2026 | $207,673 | -27.8% |
Best and worst month-end to buy
The best single month-end close to have bought MZTI was 1980-04 ($0.43): $1,000 then is $272,541 today. The worst was 2024-03 ($197): $1,000 then is $593.
FAQ
What would $1,000 in MZTI be worth today?
A $1,000 investment in The Marzetti Company (MZTI) at the start of 1980 would be worth about $258,673 today, a total return of +25767.3%. Dividends are reinvested in these figures.
What were the best and worst years for MZTI?
The Marzetti Company (MZTI)'s strongest calendar year since 1980 was 1991, a +143.7% return — $1,000 held through that year became about $2,437 by year-end. Its weakest year was 1990, at -30.3%.
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 MZTI have grown?
Investing $100 at the end of every month since 1980-03 would have grown to about $1.65M on $55,800 invested.
Did MZTI beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $75,502. MZTI beat the S&P 500 by +242.6% in total return.
Is this investment advice?
No. Wall Street Regrets is an entertainment and education tool. Every number is a historical calculation, not a prediction, and past performance never guarantees future results.
Methodology
The Marzetti Company (MZTI) 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. Wall Street Regrets is entertainment, not investment advice.
What if you'd held…
Data: adjusted close prices via Yahoo Finance. As of 2026-08. Not financial advice.