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Ionis PharmaceuticalsIONS +0.83%70 Cyclically Adjusted PS Ratio is 9.47 as of Aug. 18, 2026, which is 25% below its 10-year median of 12.67. GuruFocus rates IONS with a GF Score™ of 70/100 and a GF Value™ of $48.10 (Modestly Overvalued). The stock has 4 warning signs investors should review. Among 533 Biotechnology companies, Ionis Pharmaceuticals ranks worse than 60.98% on this metric.
The historical rank and industry rank for Ionis Pharmaceuticals's Cyclically Adjusted PS Ratio or its related term are showing as below:
IONS'
s Cyclically Adjusted PS Ratio Range Over the Past 10 Years
Min: 4.9 Med: 12.67 Max: 38.42
Current: 9.39
During the past years, Ionis Pharmaceuticals's highest Cyclically Adjusted PS Ratio was 38.42. The lowest was 4.90. And the median was 12.67.
IONS's Cyclically Adjusted PS Ratio is ranked worse than 60.98% of 533
companies
in the Biotechnology industry
Industry Median: 5.72
vs IONS: 9.39
The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PS Ratio. The Cyclically Adjusted Revenue per Share is the average of the inflation adjusted revenue per share of a company over the past 10 years.
Ionis Pharmaceuticals's adjusted revenue per share data for the three months ended in Jun. 2026 was $1.620. Add all the adjusted revenue per share for the past 10 years together and divide 10 will get our Cyclically Adjusted Revenue per Share, which is $6.24 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Ionis Pharmaceuticals (NAS:IONS) Cyclically Adjusted PS Ratio Explanation
Compared with the regular PS Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PS Ratio smoothed out the fluctuations of revenue during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PS Ratio should give similar results to regular PS Ratio.
Ionis Pharmaceuticals Cyclically Adjusted PS Ratio Related Terms
Ionis Pharmaceuticals Cyclically Adjusted PS Ratio Historical Data
* Premium members only.
The historical data trend for Ionis Pharmaceuticals's Cyclically Adjusted PS Ratio can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Ionis Pharmaceuticals Cyclically Adjusted PS Ratio Chart
IONS vs KYMR, PRAX, HALO: Cyclically Adjusted PS Ratio Comparison
For the Biotechnology subindustry, Ionis Pharmaceuticals's Cyclically Adjusted PS Ratio, along with its competitors' market caps and Cyclically Adjusted PS Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Ionis Pharmaceuticals Cyclically Adjusted PS Ratio vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, Ionis Pharmaceuticals's Cyclically Adjusted PS Ratio distribution charts can be found below:
* The bar in red indicates where Ionis Pharmaceuticals's Cyclically Adjusted PS Ratio falls into.
Ionis Pharmaceuticals Cyclically Adjusted PS Ratio Calculation
Like the Shiller PE Ratio, the Cyclically Adjusted PS Ratio takes the Revenue per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/S calculation. Because it considers this 10-year average, it's often referred to as the CAPS Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PS Ratio.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
What does a Cyclically Adjusted PS Ratio of 9.47 mean?
Ionis Pharmaceuticals (IONS) has a Cyclically Adjusted PS Ratio of 9.47 as of Aug. 18, 2026. Cyclically Adjusted PS Ratio is the ratio of share price to a company's inflation-adjusted revenue per share over a 10-year period. View historical data on Ionis Pharmaceuticals and its competitors. This is 25% below median its historical median of 12.67. Over the past decade, Ionis Pharmaceuticals' Cyclically Adjusted PS Ratio has ranged from 4.90 to 38.42. According to the industry distribution chart, Ionis Pharmaceuticals ranks #325 out of 533 companies in the Biotechnology industry, placing it in the top 61%.
Is Ionis Pharmaceuticals' Cyclically Adjusted PS Ratio too high?
Ionis Pharmaceuticals' current Cyclically Adjusted PS Ratio of 9.47 is 25% below median its 10-year median of 12.67. Over the past 10 years, this metric has ranged from a low of 4.90 to a high of 38.42. The Biotechnology industry median Cyclically Adjusted PS Ratio is 5.72. Ionis Pharmaceuticals' value of 9.47 is 65.6% above this industry median. Based on the distribution chart, Ionis Pharmaceuticals ranks #325 out of 533 companies in the Biotechnology industry, which is below the industry midpoint. Overall, Ionis Pharmaceuticals has a GF Score™ of 70/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Ionis Pharmaceuticals' Cyclically Adjusted PS Ratio compare to KYMR and PRAX?
According to the Biotechnology industry distribution chart, Ionis Pharmaceuticals ranks #325 out of 533 companies for Cyclically Adjusted PS Ratio. This places Ionis Pharmaceuticals in the lower half of its industry. The industry median Cyclically Adjusted PS Ratio is 5.72. Ionis Pharmaceuticals' value of 9.47 is 65.6% above this benchmark. Historically, Ionis Pharmaceuticals' own Cyclically Adjusted PS Ratio has ranged from 4.90 to 38.42 over the past decade. While the company's 10-year median is 12.67 vs. the industry median of 5.72, Ionis Pharmaceuticals has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PS Ratio for a Biotechnology company?
The median Cyclically Adjusted PS Ratio among Biotechnology companies is 5.72, based on 533 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PS Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PS Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Ionis Pharmaceuticals's current Cyclically Adjusted PS Ratio of 9.47 is 65.6% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PS Ratio mean?
A high Cyclically Adjusted PS Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PS Ratio is the ratio of share price to a company's inflation-adjusted revenue per share over a 10-year period. View historical data on Ionis Pharmaceuticals and its competitors. For the Biotechnology industry, the median Cyclically Adjusted PS Ratio is 5.72 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ionis Pharmaceuticals's current Cyclically Adjusted PS Ratio is 9.47, which is 25% below median its own 10-year median of 12.67. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ionis Pharmaceuticals stock overvalued right now?
Based on GuruFocus' analysis, Ionis Pharmaceuticals (IONS) is currently considered Modestly Overvalued. The stock's GF Value™ is $48.10, compared to a current price of $59.12 — trading 22.9% above its estimated fair value. The current Cyclically Adjusted PS Ratio is 9.47, which is 25% below median its 10-year median of 12.67 and 65.6% above the Biotechnology industry median of 5.72. Ionis Pharmaceuticals' overall GF Score™ is 70/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PS Ratio calculated?
Cyclically Adjusted PS Ratio is calculated from a company's financial statements. For Ionis Pharmaceuticals (IONS), the current Cyclically Adjusted PS Ratio is 9.47 as of Aug. 18, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Ionis Pharmaceuticals (IONS) Overvalued in 2026?
Based on GuruFocus' analysis, Ionis Pharmaceuticals stock appears to be overvalued.
The current stock price of $59.12 is trading 22.9% above its estimated GF Value™ of $48.10.
GuruFocus considers Ionis Pharmaceuticals to be Modestly Overvalued.
Key valuation signals for IONS:
Cyclically Adjusted PS Ratio: 9.47 (25% below median its 10-year median of 12.67)
GF Value™: $48.10 vs. price of $59.12 (22.9% above fair value)
Industry Position: 65.6% above the Biotechnology median (#325 of 533)
No single metric tells the full story. See the IONS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ionis Pharmaceuticals is the leading developer of antisense technology to discover and develop novel drugs. Its broad clinical and preclinical pipeline targets a wide variety of diseases, with an emphasis on cardiovascular, metabolic, neurological, and rare diseases. Ionis and Biogen brought Spinraza to market in 2016 as a treatment for spinal muscular atrophy, and Biogen launched ALS drug Qalsody in 2023. Ionis brought two additional drugs to market via its cardiovascular-focused subsidiary Akcea, including ATTR amyloidosis drug Tegsedi (2018) and cardiology drug Waylivra (Europe, 2019). Ionis and AstraZeneca launched polyneuropathy drug Wainua in 2024. Ionis marked its first two independent launches in 2025 for Tryngolza (for FCS) and Dawnzera (for HAE).
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