What if you'd held LNTH?
A $1,000 investment in Lantheus Holdings, Inc. (LNTH) at the month-end close of 2015-06 would be worth $16,233 at the close of 2026-08 — +1523.3% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $3,736.
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 2015
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2015 | $1,000 | — |
| 2016 | $2,544 | +154.4% |
| 2017 | $6,050 | +137.8% |
| 2018 | $4,630 | -23.5% |
| 2019 | $6,068 | +31.1% |
| 2020 | $3,991 | -34.2% |
| 2021 | $8,547 | +114.2% |
| 2022 | $15,077 | +76.4% |
| 2023 | $18,343 | +21.7% |
| 2024 | $26,467 | +44.3% |
| 2025 | $19,689 | -25.6% |
| 2026 | $29,728 | +51.0% |
Best and worst month-end to buy
The best single month-end close to have bought LNTH was 2016-03 ($1.89): $1,000 then is $53,164 today. The worst was 2026-06 ($111): $1,000 then is $906.
FAQ
What would $1,000 in LNTH be worth today?
A $1,000 investment in Lantheus Holdings, Inc. (LNTH) at the start of 2015 would be worth about $16,233 today, a total return of +1523.3%. Dividends are reinvested in these figures.
What were the best and worst years for LNTH?
Lantheus Holdings, Inc. (LNTH)'s strongest calendar year since 2015 was 2016, a +154.4% return — $1,000 held through that year became about $2,544 by year-end. Its weakest year was 2020, at -34.2%.
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 LNTH have grown?
Investing $100 at the end of every month since 2015-06 would have grown to about $94,429 on $13,500 invested.
Did LNTH beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $3,736. LNTH beat the S&P 500 by +334.5% 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
Lantheus Holdings, Inc. (LNTH) historical total-return data from 2015-06 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.