What if you'd held NSP?
A $1,000 investment in Insperity, Inc. (NSP) at the month-end close of 1997-01 would be worth $17,160 at the close of 2026-08 — +1616.0% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $16,639.
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 | $966 | -3.4% |
| 1999 | $1,169 | +21.0% |
| 2000 | $2,102 | +79.9% |
| 2001 | $2,119 | +0.8% |
| 2002 | $464 | -78.1% |
| 2003 | $1,343 | +189.7% |
| 2004 | $975 | -27.4% |
| 2005 | $3,290 | +237.5% |
| 2006 | $3,376 | +2.6% |
| 2007 | $2,261 | -33.0% |
| 2008 | $1,773 | -21.6% |
| 2009 | $1,974 | +11.3% |
| 2010 | $2,510 | +27.2% |
| 2011 | $2,223 | -11.5% |
| 2012 | $2,926 | +31.7% |
| 2013 | $3,318 | +13.4% |
| 2014 | $3,390 | +2.2% |
| 2015 | $4,903 | +44.6% |
| 2016 | $7,334 | +49.6% |
| 2017 | $12,219 | +66.6% |
| 2018 | $20,067 | +64.2% |
| 2019 | $18,713 | -6.7% |
| 2020 | $18,140 | -3.1% |
| 2021 | $27,236 | +50.1% |
| 2022 | $26,715 | -1.9% |
| 2023 | $28,116 | +5.2% |
| 2024 | $19,081 | -32.1% |
| 2025 | $9,964 | -47.8% |
| 2026 | $14,423 | +44.8% |
Best and worst month-end to buy
The best single month-end close to have bought NSP was 2002-08 ($0.78): $1,000 then is $69,084 today. The worst was 2023-02 ($108): $1,000 then is $494.
FAQ
What would $1,000 in NSP be worth today?
A $1,000 investment in Insperity, Inc. (NSP) at the start of 1997 would be worth about $17,160 today, a total return of +1616.0%. Dividends are reinvested in these figures.
What were the best and worst years for NSP?
Insperity, Inc. (NSP)'s strongest calendar year since 1997 was 2005, a +237.5% return — $1,000 held through that year became about $3,375 by year-end. Its weakest year was 2002, at -78.1%.
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 NSP have grown?
Investing $100 at the end of every month since 1997-01 would have grown to about $241,157 on $35,600 invested.
Did NSP 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 $16,639. NSP beat the S&P 500 by +3.1% 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
Insperity, Inc. (NSP) historical total-return data from 1997-01 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.