What if you'd held HALO?
A $1,000 investment in Halozyme Therapeutics, Inc. (HALO) at the month-end close of 2004-03 would be worth $24,740 at the close of 2026-08 — +2374.0% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $6,844.
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 2004
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2004 | $1,000 | — |
| 2005 | $827 | -17.3% |
| 2006 | $3,659 | +342.3% |
| 2007 | $3,232 | -11.7% |
| 2008 | $2,545 | -21.2% |
| 2009 | $2,668 | +4.8% |
| 2010 | $3,600 | +34.9% |
| 2011 | $4,323 | +20.1% |
| 2012 | $3,050 | -29.4% |
| 2013 | $6,814 | +123.4% |
| 2014 | $4,386 | -35.6% |
| 2015 | $7,877 | +79.6% |
| 2016 | $4,491 | -43.0% |
| 2017 | $9,209 | +105.1% |
| 2018 | $6,650 | -27.8% |
| 2019 | $8,059 | +21.2% |
| 2020 | $19,414 | +140.9% |
| 2021 | $18,277 | -5.9% |
| 2022 | $25,864 | +41.5% |
| 2023 | $16,800 | -35.0% |
| 2024 | $21,732 | +29.4% |
| 2025 | $30,591 | +40.8% |
| 2026 | $48,918 | +59.9% |
Best and worst month-end to buy
The best single month-end close to have bought HALO was 2005-03 ($1.65): $1,000 then is $65,224 today. The worst was 2026-08 ($108): $1,000 then is $1,000.
FAQ
What would $1,000 in HALO be worth today?
A $1,000 investment in Halozyme Therapeutics, Inc. (HALO) at the start of 2004 would be worth about $24,740 today, a total return of +2374.0%. Dividends are reinvested in these figures.
What were the best and worst years for HALO?
Halozyme Therapeutics, Inc. (HALO)'s strongest calendar year since 2004 was 2006, a +342.3% return — $1,000 held through that year became about $4,423 by year-end. Its weakest year was 2016, at -43.0%.
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 HALO have grown?
Investing $100 at the end of every month since 2004-03 would have grown to about $362,520 on $27,000 invested.
Did HALO beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $6,844. HALO beat the S&P 500 by +261.5% 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
Halozyme Therapeutics, Inc. (HALO) historical total-return data from 2004-03 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.