What if you'd held NI?
A $1,000 investment in NiSource Inc (NI) at the month-end close of 1973-02 would be worth $56,563 at the close of 2026-08 — +5556.3% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $69,018.
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 1973
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1973 | $1,000 | — |
| 1974 | $780 | -22.0% |
| 1975 | $988 | +26.7% |
| 1976 | $1,097 | +11.1% |
| 1977 | $1,056 | -3.7% |
| 1978 | $869 | -17.7% |
| 1979 | $758 | -12.8% |
| 1980 | $635 | -16.3% |
| 1981 | $607 | -4.4% |
| 1982 | $697 | +14.8% |
| 1983 | $808 | +15.9% |
| 1984 | $667 | -17.5% |
| 1985 | $640 | -4.0% |
| 1986 | $762 | +19.0% |
| 1987 | $561 | -26.4% |
| 1988 | $966 | +72.3% |
| 1989 | $1,425 | +47.4% |
| 1990 | $1,473 | +3.3% |
| 1991 | $2,123 | +44.2% |
| 1992 | $2,298 | +8.2% |
| 1993 | $2,975 | +29.5% |
| 1994 | $2,825 | -5.0% |
| 1995 | $3,810 | +34.8% |
| 1996 | $4,129 | +8.4% |
| 1997 | $5,384 | +30.4% |
| 1998 | $6,866 | +27.5% |
| 1999 | $4,201 | -38.8% |
| 2000 | $7,624 | +81.5% |
| 2001 | $5,975 | -21.6% |
| 2002 | $5,501 | -7.9% |
| 2003 | $6,384 | +16.1% |
| 2004 | $6,922 | +8.4% |
| 2005 | $6,594 | -4.7% |
| 2006 | $7,944 | +20.5% |
| 2007 | $6,494 | -18.3% |
| 2008 | $3,989 | -38.6% |
| 2009 | $6,041 | +51.4% |
| 2010 | $7,325 | +21.3% |
| 2011 | $10,360 | +41.4% |
| 2012 | $11,250 | +8.6% |
| 2013 | $15,353 | +36.5% |
| 2014 | $20,354 | +32.6% |
| 2015 | $24,522 | +20.5% |
| 2016 | $28,616 | +16.7% |
| 2017 | $34,132 | +19.3% |
| 2018 | $34,790 | +1.9% |
| 2019 | $39,325 | +13.0% |
| 2020 | $33,474 | -14.9% |
| 2021 | $41,762 | +24.8% |
| 2022 | $42,875 | +2.7% |
| 2023 | $43,081 | +0.5% |
| 2024 | $61,815 | +43.5% |
| 2025 | $72,210 | +16.8% |
| 2026 | $73,422 | +1.7% |
Best and worst month-end to buy
The best single month-end close to have bought NI was 1987-11 ($0.32): $1,000 then is $130,912 today. The worst was 2026-04 ($47.96): $1,000 then is $868.
FAQ
What would $1,000 in NI be worth today?
A $1,000 investment in NiSource Inc (NI) at the start of 1973 would be worth about $56,563 today, a total return of +5556.3%. Dividends are reinvested in these figures.
What were the best and worst years for NI?
NiSource Inc (NI)'s strongest calendar year since 1973 was 2000, a +81.5% return — $1,000 held through that year became about $1,815 by year-end. Its weakest year was 1999, at -38.8%.
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 NI have grown?
Investing $100 at the end of every month since 1973-02 would have grown to about $2.4M on $64,300 invested.
Did NI beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $69,018. NI trailed the S&P 500 by +18.0% 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
NiSource Inc (NI) historical total-return data from 1973-02 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.