What if you'd held SLG?
A $1,000 investment in SL Green Realty Corp (SLG) at the month-end close of 1997-08 would be worth $8,185 at the close of 2026-08 — +718.5% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $14,383.
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 1997
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1997 | $1,000 | — |
| 1998 | $890 | -11.0% |
| 1999 | $960 | +7.9% |
| 2000 | $1,307 | +36.1% |
| 2001 | $1,515 | +15.9% |
| 2002 | $1,646 | +8.6% |
| 2003 | $2,254 | +37.0% |
| 2004 | $3,462 | +53.6% |
| 2005 | $4,520 | +30.6% |
| 2006 | $8,035 | +77.8% |
| 2007 | $5,801 | -27.8% |
| 2008 | $1,683 | -71.0% |
| 2009 | $3,392 | +101.5% |
| 2010 | $4,587 | +35.2% |
| 2011 | $4,564 | -0.5% |
| 2012 | $5,323 | +16.7% |
| 2013 | $6,525 | +22.6% |
| 2014 | $8,573 | +31.4% |
| 2015 | $8,317 | -3.0% |
| 2016 | $8,150 | -2.0% |
| 2017 | $7,886 | -3.2% |
| 2018 | $6,403 | -18.8% |
| 2019 | $7,746 | +21.0% |
| 2020 | $5,488 | -29.2% |
| 2021 | $6,976 | +27.1% |
| 2022 | $3,422 | -50.9% |
| 2023 | $5,091 | +48.8% |
| 2024 | $8,058 | +58.3% |
| 2025 | $5,719 | -29.0% |
| 2026 | $7,386 | +29.2% |
Best and worst month-end to buy
The best single month-end close to have bought SLG was 2009-03 ($5.63): $1,000 then is $10,220 today. The worst was 2015-03 ($72.37): $1,000 then is $795.
FAQ
What would $1,000 in SLG be worth today?
A $1,000 investment in SL Green Realty Corp (SLG) at the start of 1997 would be worth about $8,185 today, a total return of +718.5%. Dividends are reinvested in these figures.
What were the best and worst years for SLG?
SL Green Realty Corp (SLG)'s strongest calendar year since 1997 was 2009, a +101.5% return — $1,000 held through that year became about $2,015 by year-end. Its weakest year was 2008, at -71.0%.
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 SLG have grown?
Investing $100 at the end of every month since 1997-08 would have grown to about $90,380 on $34,900 invested.
Did SLG beat the S&P 500?
Over the same period, $1,000 in the S&P 500 with dividends reinvested (the S&P 500 Total Return index) would be worth $14,383. SLG trailed the S&P 500 by +43.1% 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
SL Green Realty Corp (SLG) historical total-return data from 1997-08 to 2026-08, reduced to month-end closes for the tables above.
Returns use adjusted close prices — adjusted for stock splits and reinvested dividends, the same convention used by major brokerages. End-of-day and live prices come from EODHD; parts of the deep historical series are carried over from Yahoo Finance data. 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 (EODHD): 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 EODHD and Yahoo Finance. As of 2026-08. Not financial advice.