ADT Historical PE Ratio Notes

— ADT Inc. (NYSE: ADT) is a leading provider of security, automation, & smart home solutions in the United States. Its core business revolves around providing monitored security systems for residences and businesses, including alarms, video surveillance, & home automation services. This focus on recurring revenue from long-term monitoring contracts offers ADT some earnings stability, but also exposes it to risks such as customer churn and competitive pricing pressures. When reviewing ADT’s historical price-to-earnings (PE) ratio, it is important to recognize how factors like market perceptions of growth versus risk, debt levels, and profitability impact its valuation. For much of its history, ADT's PE ratio may reflect periods of heavy investment, interest expenses from significant leverage, and sporadic net earnings, especially when compared to high-growth tech firms or stable consumer brands. As you analyze ADT’s historical charts and tables, consider how industry changes, shifts in consumer demand for security, and broader macroeconomic factors have influenced both the earnings trajectory and how much investors have been willing to pay for those earnings at different times.

On this page we presented the ADT Historical PE Ratio information for ADT' stock. The average ADT historical PE based on using the annualized quarterly earnings result at each measurement period (for the "E" in the PE calculation; and the closing price on earnings date as the "P") is 12.6. Meanwhile, using the trailing twelve month (TTM) quarterly earnings result as our method of calculation the "E" value at each measurement period, the average ADT historical PE based on this TTM earnings result method is 18.8. Note: any PE calculations involving negative earnings were discarded as not meaningful.

Let's now compare this ADT historical PE result, against the recent PE: when this page was posted on 3/6/2026, the most recent closing price for ADT had been 6.55, and the most recent quarterly earnings result, annualized, was 0.92. Meanwhile, the most recent TTM earnings summed to 0.9. From these numbers, we calculate the recent ADT PE on 3/6/2026 based on annualized quarterly EPS was 7.1. Based on ADT's history, that recent PE is low relative to the historical average, with the recent PE 43.7% lower than the historical average PE across our data set for ADT. Looking at the recent ADT PE on 3/6/2026 based on TTM EPS, we calculate the ratio at 7.3. Based on ADT's history, that recent PE is low relative to the historical average, with the recent PE 61.2% lower than the average PE across our ADT data set with TTM EPS used in the calculation at each period.

Another interesting ADT historical PE Ratio calculation we look at is to take the median earnings per share of the last four quarters for ADT, and then annualize the resulting value... with that annualized number then being used in the PE calculation. To walk through this math for ADT, we start with the past four EPS numbers and we first sort them from lowest to highest: 0.21, 0.23, 0.23, and 0.23. We then toss out the highest and lowest result, and then take the average of those two middle numbers — 0.23 and 0.23 — which gives us the median of 0.23. Basically the way to think about this 0.23 number is this: for the trailing four earnings reports, 0.23 marks the "middle ground" number where ADT has reported a value higher than 0.23 half the time, and has reported a value lower than 0.23 half the time. Annualizing that median value then gets us to 0.92/share, which we use as the denominator in our next PE calculation. With 6.55 as the numerator (as of 3/6/2026), the calculation is then 6.55 / 0.92 = 7.1 as the ADT PE ratio as of 3/6/2026, based on that annualized median value we calculated.

For self directed investors doing their due diligence on ADT or any other given stock, valuation analysis for ADT can greatly benefit from studying the past earnings and resulting PE calculations. This exercise can help inform an analysis as to whether the past earnings trajectory and current versus historical PE ratios justify the current stock value.

That's why we bring you HistoricalPERatio.com to make it easy for investors to investigate ADT PE history or the past PE information for any stock in our coverage universe. And in your continued research we hope you will be sure to check out the further links included for earnings surprises history (beat/miss data) as well as next earnings dates for ADT. Thanks for visiting, and the next time you need to research ADT Historical PE Ratio or the ratio for another stock, we hope you'll think of our site, as your go-to historical PE ratio research resource of choice.