What if you'd held INSM?
A $1,000 investment in Insmed Incorporated (INSM) at the month-end close of 2000-06 would be worth $1,005 at the close of 2026-08 — +0.5% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $5,299.
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 2000
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2000 | $1,000 | — |
| 2001 | $1,101 | +10.1% |
| 2002 | $127 | -88.5% |
| 2003 | $856 | +575.0% |
| 2004 | $634 | -25.9% |
| 2005 | $553 | -12.7% |
| 2006 | $254 | -54.2% |
| 2007 | $239 | -5.7% |
| 2008 | $135 | -43.4% |
| 2009 | $222 | +63.8% |
| 2010 | $182 | -18.2% |
| 2011 | $87.92 | -51.6% |
| 2012 | $193 | +119.3% |
| 2013 | $490 | +154.1% |
| 2014 | $446 | -9.0% |
| 2015 | $523 | +17.3% |
| 2016 | $381 | -27.1% |
| 2017 | $899 | +135.7% |
| 2018 | $378 | -57.9% |
| 2019 | $688 | +82.0% |
| 2020 | $960 | +39.4% |
| 2021 | $785 | -18.2% |
| 2022 | $576 | -26.7% |
| 2023 | $893 | +55.1% |
| 2024 | $1,990 | +122.8% |
| 2025 | $5,017 | +152.1% |
| 2026 | $3,767 | -24.9% |
Best and worst month-end to buy
The best single month-end close to have bought INSM was 2012-05 ($2.82): $1,000 then is $46,333 today. The worst was 2025-11 ($208): $1,000 then is $629.
FAQ
What would $1,000 in INSM be worth today?
A $1,000 investment in Insmed Incorporated (INSM) at the start of 2000 would be worth about $1,005 today, a total return of +0.5%. Dividends are reinvested in these figures.
What were the best and worst years for INSM?
Insmed Incorporated (INSM)'s strongest calendar year since 2000 was 2003, a +575.0% return — $1,000 held through that year became about $6,750 by year-end. Its weakest year was 2002, at -88.5%.
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 INSM have grown?
Investing $100 at the end of every month since 2000-06 would have grown to about $316,921 on $31,500 invested.
Did INSM beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $5,299. INSM trailed the S&P 500 by +81.0% 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
Insmed Incorporated (INSM) historical total-return data from 2000-06 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.