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ISIN
US4622221004
CUSIP
462222100
IPO Date
May 17, 1991

Highlights

Market Cap
$12.03B
Enterprise Value
$14.10B
EPS (TTM)
-$1.95
Total Revenue (TTM)
$1.06B
Gross Profit (TTM)
$1.04B
EBITDA (TTM)
$4.54B
Year Range
$34.78 - $86.74
Target Price
$102.09
ROA (TTM)
-9.47%
ROE (TTM)
-66.46%

Share Price Chart


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Performance

IONS Performance Chart

Ionis Pharmaceuticals, Inc. (IONS) is down 7.8% since the beginning of the year. At $73 per share, IONS is trading 15.9% below its 52-week high of $87. Investors who bought $1,000 worth of IONS shares 5 years ago would now be looking at an investment worth $2,101.


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S&P 500 Index

Returns By Period

Ionis Pharmaceuticals, Inc. (IONS) has returned -7.76% so far this year and 113.93% over the past 12 months. Over the last ten years, IONS has returned 12.26% per year, falling short of the S&P 500 Index benchmark, which averaged 13.75% annually.


Ionis Pharmaceuticals, Inc.

1D
-3.20%
1M
-3.07%
YTD
-7.76%
6M
-10.26%
1Y
113.93%
3Y*
20.46%
5Y*
16.01%
10Y*
12.26%

Benchmark (S&P 500 Index)

1D
0.13%
1M
5.25%
YTD
11.16%
6M
11.43%
1Y
28.20%
3Y*
21.12%
5Y*
12.66%
10Y*
13.75%
*Multi-year figures are annualized to reflect compound growth (CAGR)

IONS Monthly Returns History

Based on dividend-adjusted daily data since May 17, 1991, IONS's average daily return is +0.10%, while the average monthly return is +1.92%. At this rate, an investment would double in approximately 3.0 years.

Historically, 50% of months were positive and 50% were negative. The best month was Nov 1992 with a return of +91.7%, while the worst month was Dec 1999 at -59.2%. The longest winning streak lasted 6 consecutive months, and the longest losing streak was 7 months.

On a daily basis, IONS closed higher 47% of trading days. The best single day was Aug 22, 2001 with a return of +47.7%, while the worst single day was Dec 15, 1999 at -63.9%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20264.50%-1.84%-7.47%-0.44%2.33%-4.61%-7.76%
2025-8.75%4.04%-9.10%1.79%9.12%17.91%8.78%-0.80%53.44%13.57%11.35%-4.38%126.29%
20241.58%-12.03%-4.11%-4.82%-8.94%26.86%3.78%-3.60%-15.98%-4.17%-6.93%-2.16%-30.90%
20235.56%-9.96%-0.45%-1.04%15.63%0.32%0.97%-2.80%12.64%-2.40%11.75%2.26%33.94%
20224.50%4.97%10.96%-0.76%-0.65%1.37%1.46%13.21%4.02%-0.07%-7.71%-7.40%24.12%
20216.24%-12.77%-14.20%-4.76%-13.01%7.09%-6.89%7.05%-15.64%-4.98%-16.85%14.83%-46.18%

Benchmark Metrics

Ionis Pharmaceuticals, Inc. has an annualized alpha of 15.35%, beta of 1.09, and R2 of 0.10 versus S&P 500 Index. Calculated based on daily prices since May 20, 1991.

  • This stock participated in 140.53% of S&P 500 Index downside but only 134.89% of its upside - more exposed to losses than it benefited from rallies.
  • R2 of 0.10 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.

Alpha
15.35%
Beta
1.09
0.10
Upside Capture
134.89%
Downside Capture
140.53%

Return for Risk

Risk / Return Rank

IONS ranks 93 for risk / return — in the top 93% of stocks on our site. This means strong returns relative to risk — exactly what professional investors look for. Well-suited for investors who want to maximize return per unit of risk.


IONS Risk / Return Rank: 9393
Overall Rank
IONS Sharpe Ratio Rank: 9191
Sharpe Ratio Rank
IONS Sortino Ratio Rank: 9696
Sortino Ratio Rank
IONS Omega Ratio Rank: 9393
Omega Ratio Rank
IONS Calmar Ratio Rank: 9393
Calmar Ratio Rank
IONS Martin Ratio Rank: 9292
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

Return / Risk — by metrics

The table below present risk-adjusted performance metrics for Ionis Pharmaceuticals, Inc. (IONS) and compare them to S&P 500 Index.


IONSBenchmarkDifference

Sharpe ratio

Return per unit of total volatility

2.45

2.39

+0.06

Sortino ratio

Return per unit of downside risk

4.42

3.25

+1.17

Omega ratio

Gain probability vs. loss probability

1.53

1.43

+0.10

Calmar ratio

Return relative to maximum drawdown

5.89

3.11

+2.78

Martin ratio

Return relative to average drawdown

15.16

14.38

+0.78

Dividends

Dividend History


Ionis Pharmaceuticals, Inc. doesn't pay dividends

Drawdowns

Drawdowns Chart

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.


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Worst Drawdowns

The table below displays the maximum drawdowns of the Ionis Pharmaceuticals, Inc.. 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 Ionis Pharmaceuticals, Inc. was 91.42%, occurring on May 17, 2005. Recovery took 2051 trading sessions.

The current Ionis Pharmaceuticals, Inc. drawdown is 15.64%.


Related event

Drawdown

Fall

Recovery

Underwater

2005 bear market2005
-91.42%May 2005
5y 2mo8y 1mo
13y 4moMar 2000 - Jul 2013
1994 bear market1994
-84.12%Nov 1994
3y1y 7mo
4y 7moNov 1991 - Jun 1996
1999 bear market1999
-76.00%Dec 1999
3y 6mo2mo 12d
3y 8moJun 1996 - Mar 2000
2016 bear market2016
-73.25%Jun 2016
1y 3mo2y 8mo
3y 12moMar 2015 - Mar 2019
2025 selloff2025
-70.39%Apr 2025
6y 1d10mo 4d
6y 10moApr 2019 - Feb 2026

Drawdown Indicators


IONSBenchmarkDifference

Max Drawdown

Largest peak-to-trough decline

-91.42%

-56.78%

-34.64%

Max Drawdown (1Y)

Largest decline over 1 year

-19.45%

-9.10%

-10.35%

Max Drawdown (3Y)

Largest decline over 3 years

-52.36%

-18.90%

-33.46%

Max Drawdown (5Y)

Largest decline over 5 years

-52.36%

-25.43%

-26.93%

Max Drawdown (10Y)

Largest decline over 10 years

-70.39%

-33.92%

-36.47%

Current Drawdown

Current decline from peak

-15.64%

0.00%

-15.64%

Average Drawdown

Average peak-to-trough decline

-52.40%

-10.72%

-41.68%

Ulcer Index

Depth and duration of drawdowns from previous peaks

7.54%

1.97%

+5.57%

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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Financials

Financial Performance

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


Annual
Quarterly

0.0

Valuation

The Valuation section provides an overview of how Ionis Pharmaceuticals, Inc. is priced in the market compared to other companies in the Biotechnology industry. It includes key financial ratios that help investors assess whether the stock is undervalued or overvalued.


PS Ratio

This chart shows the Price-to-Sales (P/S) ratio for IONS relative to other companies in the Biotechnology industry. Currently, IONS has a P/S ratio of 11.6. This P/S ratio falls within the average range for the industry, suggesting the stock is fairly valued based on its revenue.

PB Ratio

The chart illustrates the Price-to-Book (P/B) ratio for IONS in comparison with other companies in the Biotechnology industry. Currently, IONS has a P/B value of 24.5. This P/B ratio is higher than most companies in the industry. It may suggest the stock is overvalued or that investors expect the company to generate high returns on its assets.

Income Statement



TTM
Revenue

Total Revenue

Cost Of Revenue

Gross Profit

Operating Expenses

Selling, General & Admin Expenses

R&D Expenses

Depreciation And Amortization

Total Operating Expenses

Income

Income Before Tax

Operating Income

EBITDA

EBIT

Earnings From Continuing Operations

Net Income

Income Tax Expense

Other Non-Operating Income (Expenses)

Extraordinary Items

Discontinued Operations

Effect Of Accounting Charges

Non Recurring

Minority Interest

Other Items

Interest Income

Interest Expense

Net Interest Income

Values in undefined except per share items
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