IDCC
Interdigital
PE ratio, current and historical analysis
- Stocks
- Communication Services
- NASDAQ: IDCC
- PE Ratio
As of Aug 21, 2026, the Interdigital stock's PE ratio is 29.17. This results from the current EPS of $11.74 and stock price of $342.42. The P/E ratio marks an increase of 40% from the past four quarters average of 20.9.
IDCC PE ratio history
The PE ratio of Interdigital has averaged 31.21 over the last ten years. The current PE ratio of 29.17 is 7% below the historical average. Over the past ten years, IDCC's PE ratio was at its highest in the Sep 2019 quarter at 169.26, when the stock price was $52.47 and the EPS was $0.31. The lowest value was in the Jun 2017 quarter, when it reached 8.14 with a price of $77.3 and an EPS of $9.5.
Interdigital PE ratio by year
Maximum annual increase: 387.1% in 2013
Maximum annual decrease: -70.57% in 2012
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| 2025 | 20.19 | 47.59% | $318.38 | $15.77 |
| 2024 | 13.68 | 0.44% | $193.72 | $14.16 |
| 2023 | 13.62 | -14.39% | $108.54 | $7.97 |
| 2022 | 15.91 | -60.02% | $49.48 | $3.11 |
| 2021 | 39.79 | -4.26% | $71.63 | $1.8 |
| 2020 | 41.56 | -49.66% | $60.68 | $1.46 |
| 2019 | 82.56 | 134.88% | $54.49 | $0.66 |
| 2018 | 35.15 | 134.96% | $66.43 | $1.89 |
| 2017 | 14.96 | 46.52% | $76.15 | $5.09 |
| 2016 | 10.21 | -31.11% | $91.35 | $8.95 |
| 2015 | 14.82 | -25.75% | $49.04 | $3.31 |
| 2014 | 19.96 | -37.05% | $52.9 | $2.65 |
| 2013 | 31.71 | 387.1% | $29.49 | $0.93 |
| 2012 | 6.51 | -70.57% | $41.09 | $6.31 |
| 2011 | 22.12 | 84.8% | $43.57 | $1.97 |
Interdigital PE ratio by quarter (TTM)
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| Jun 2026 | 24.12 | 13.4% | $283.13 | $11.74 |
| Mar 2026 | 21.27 | 5.35% | $302 | $14.2 |
| Dec 2025 | 20.19 | 12.98% | $318.38 | $15.77 |
| Sep 2025 | 17.87 | 43.88% | $345.23 | $19.32 |
| Jun 2025 | 12.42 | -7.24% | $224.23 | $18.06 |
| Mar 2025 | 13.39 | -2.12% | $206.75 | $15.44 |
| Dec 2024 | 13.68 | 1.03% | $193.72 | $14.16 |
| Sep 2024 | 13.54 | 26.9% | $141.63 | $10.46 |
| Jun 2024 | 10.67 | -26.06% | $116.56 | $10.92 |
| Mar 2024 | 14.43 | 5.95% | $106.46 | $7.38 |
| Dec 2023 | 13.62 | 25.07% | $108.54 | $7.97 |
| Sep 2023 | 10.89 | -28.96% | $80.24 | $7.37 |
| Jun 2023 | 15.33 | 29.92% | $96.55 | $6.3 |
| Mar 2023 | 11.8 | -25.83% | $72.9 | $6.18 |
| Dec 2022 | 15.91 | 7.86% | $49.48 | $3.11 |
IDCC Price vs fair value
IDCC average PE ratio chart
What this chart measures
The Historical Valuation Regime chart shows where the stock's current valuation sits relative to its own historical valuation range over the selected lookback period.
This is a history-relative tool, not a market-relative percentile. It does not compare the stock to other companies. Instead, it compares each historical valuation reading to the stock's own past readings.
Percentile logic
The threshold lines are calculated them from the stock's real historical values using percentile interpolation. That is why some colored bands are narrow while others are wide: the band widths reflect how the stock actually traded through time.
Regime map
| Historical percentile | Regime | Chart meaning |
|---|---|---|
| 0-10 | Historically Low | Deep cheap zone |
| >10-25 | Below Average | Cheap relative to history |
| >25-75 | Average | Within the normal historical range |
| >75-90 | Above Average | Expensive relative to history |
| >90-100 | Historically High | Extreme or stretched valuation |
How to read each part
| Chart element | What it tells you |
|---|---|
| Main line | The actual historical valuation values over time for the selected metric. |
| Dashed horizontal lines | The stock's computed P10, P25, Median, P75, and P90 thresholds for the selected period. |
| Colored bands | The historical valuation zones between those thresholds. |
| Metric boxes | Current ratio, historical median, current percentile, and current regime. |
| Timeline strip | A condensed regime history showing how the stock moved between cheap, fair, and expensive states across each observation. |
Important metric definitions
Current Percentile is the percentile rank of the latest valid historical observation within the selected lookback range.
Current Regime is assigned directly from the latest observation's percentile bucket using the fixed 10 / 25 / 75 / 90 cutoffs shown above.
How to use it well
This chart is most useful for answering a narrow question: Is this stock trading high, low, or normal relative to its own history? It works best alongside growth, profitability, and forward-looking business analysis, because a stock can deserve a higher or lower regime if its business quality has changed.
Currently, IDCC's PE ratio is greater than its 3 and 5-year historical averages, but it is below the 10-year average.
PE comparison
Interdigital's P/E of 29.17 is above the Communication Services sector and the industry average. Compared to its Communication Services sector average of 24.94, Interdigital's P/E is 17% higher.
IDCC PE vs peers
Frequently asked questions
What is Interdigital's PE ratio?
IDCC's price to earnings ratio is 29.17 as of Aug 21, 2026.
What is the 3-year average PE ratio for Interdigital (IDCC)?
Over the last 3 years, the average price to earnings ratio for IDCC stock is 15.51.
What is the 5-year average PE ratio for Interdigital (IDCC)?
Over the last 5 years, the average price to earnings ratio for IDCC stock is 19.96.
What is the highest PE ratio for IDCC?
In the last ten years, the Sep 2019 quarter recorded the highest quarterly PE ratio at 169.26.
How does the current PE ratio for IDCC compare to its historical average?
IDCC's price to earnings ratio is currently 7% below its 10-year historical average.
How is IDCC's PE ratio calculated (Interdigital PE ratio formula)?
You can calculate the PE ratio by dividing the most recent stock price by the trailing twelve months EPS. As of today (Aug 21, 2026), Interdigital's stock price is $342.42. The earnings per share for the trailing twelve months (TTM) ending Jun 2026 is $11.74. Therefore, Interdigital's P/E ratio for today is 29.17. PE RATIO(29.17) = STOCK PRICE($342.42) / TTM EPS($11.74)
All PE ratio stats are based on quarterly TTM periods, unless otherwise specified.