What if you'd held IDCC?
A $1,000 investment in InterDigital, Inc. (IDCC) at the month-end close of 1981-11 would be worth $147,376 at the close of 2026-08 — +14637.6% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $61,005.
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 1981
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1981 | $1,000 | — |
| 1982 | $4,079 | +307.9% |
| 1983 | $2,866 | -29.7% |
| 1984 | $2,301 | -19.7% |
| 1985 | $2,778 | +20.7% |
| 1986 | $4,690 | +68.8% |
| 1987 | $2,907 | -38.0% |
| 1988 | $3,037 | +4.5% |
| 1989 | $2,042 | -32.8% |
| 1990 | $1,389 | -32.0% |
| 1991 | $2,042 | +47.0% |
| 1992 | $3,213 | +57.4% |
| 1993 | $1,824 | -43.2% |
| 1994 | $2,560 | +40.4% |
| 1995 | $2,560 | 0.0% |
| 1996 | $2,060 | -19.5% |
| 1997 | $1,065 | -48.3% |
| 1998 | $1,583 | +48.7% |
| 1999 | $26,046 | +1545.0% |
| 2000 | $1,880 | -92.8% |
| 2001 | $3,370 | +79.3% |
| 2002 | $5,056 | +50.0% |
| 2003 | $7,153 | +41.5% |
| 2004 | $7,676 | +7.3% |
| 2005 | $6,361 | -17.1% |
| 2006 | $11,653 | +83.2% |
| 2007 | $8,102 | -30.5% |
| 2008 | $9,551 | +17.9% |
| 2009 | $9,222 | -3.4% |
| 2010 | $14,463 | +56.8% |
| 2011 | $15,301 | +5.8% |
| 2012 | $15,106 | -1.3% |
| 2013 | $10,921 | -27.7% |
| 2014 | $19,903 | +82.2% |
| 2015 | $18,731 | -5.9% |
| 2016 | $35,440 | +89.2% |
| 2017 | $30,000 | -15.3% |
| 2018 | $26,634 | -11.2% |
| 2019 | $22,343 | -16.1% |
| 2020 | $25,532 | +14.3% |
| 2021 | $30,764 | +20.5% |
| 2022 | $21,769 | -29.2% |
| 2023 | $48,685 | +123.6% |
| 2024 | $88,148 | +81.1% |
| 2025 | $146,370 | +66.1% |
| 2026 | $159,657 | +9.1% |
Best and worst month-end to buy
The best single month-end close to have bought IDCC was 1994-08 ($1.97): $1,000 then is $175,056 today. The worst was 2026-02 ($365): $1,000 then is $945.
FAQ
What would $1,000 in IDCC be worth today?
A $1,000 investment in InterDigital, Inc. (IDCC) at the start of 1981 would be worth about $147,376 today, a total return of +14637.6%. Dividends are reinvested in these figures.
What were the best and worst years for IDCC?
InterDigital, Inc. (IDCC)'s strongest calendar year since 1981 was 1999, a +1545.0% return — $1,000 held through that year became about $16,450 by year-end. Its weakest year was 2000, at -92.8%.
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 IDCC have grown?
Investing $100 at the end of every month since 1981-11 would have grown to about $2.03M on $53,800 invested.
Did IDCC beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $61,005. IDCC beat the S&P 500 by +141.6% 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
InterDigital, Inc. (IDCC) historical total-return data from 1981-11 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.