ICON Public Limited Company (ICLR)

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The chart shows the growth of an initial investment of $10,000 in ICON Public Limited Company, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends.

ICON Public Limited Company (ICLR) has returned -39.27% so far this year and -36.76% over the past 12 months. Over the last ten years, ICLR has returned 3.91% per year, falling short of the S&P 500 Index benchmark, which averaged 12.16% annually.

Based on dividend-adjusted daily data since May 15, 1998, ICLR's average daily return is +0.08%, while the average monthly return is +1.48%. At this rate, your investment would double in approximately 3.9 years.

Historically, 59% of months were positive and 41% were negative. The best month was Jun 1999 with a return of +57.0%, while the worst month was Mar 1999 at -48.7%. The longest winning streak lasted 7 consecutive months, and the longest losing streak was 10 months.

On a daily basis, ICLR closed higher 49% of trading days. The best single day was Jun 18, 1999 with a return of +30.9%, while the worst single day was Mar 30, 1999 at -50.9%.

ICON Public Limited Company has an annualized alpha of 15.22%, beta of 0.68, and R² of 0.09 versus S&P 500 Index. Calculated based on daily prices since May 18, 1998.

• This stock participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (92.94%) than losses (74.74%) — typical of diversified or defensive assets.
• Beta of 0.68 may look defensive, but with R² of 0.09 this stock is largely uncorrelated with S&P 500 Index — low beta reflects independence, not downside protection. See the Volatility section for a true picture of this stock's risk.
• R² of 0.09 means this stock moves largely independently of S&P 500 Index — capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.

ICLR ranks 16 for risk / return — in the bottom 16% of stocks on our site. This means you're taking on significantly more risk than the returns justify. Consider whether the potential upside is worth the volatility, or explore alternatives with better risk / return profiles.

The table below present risk-adjusted performance metrics for ICON Public Limited Company (ICLR) and compare them to a chosen benchmark (S&P 500 Index).

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.

The table below displays the maximum drawdowns of the ICON Public Limited Company. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the ICON Public Limited Company was 76.87%, occurring on Feb 12, 2026. The portfolio has not yet recovered.

The current ICON Public Limited Company drawdown is 68.04%.

The chart below shows the rolling one-month volatility.

The chart below illustrates the trends in the financial health of ICON Public Limited Company over time, highlighting three key metrics: Total Revenue, Earnings Before Interest and Taxes (EBIT), and Net Income.

The Valuation section provides an overview of how ICON Public Limited Company is priced in the market compared to other companies in the Diagnostics & Research industry. It includes key financial ratios that help investors assess whether the stock is undervalued or overvalued.