IST (NSE:ISTLTD) Cyclically Adjusted PB Ratio: (As of Aug. 21, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

NSE:ISTLTD IST Ltd NSE:ISTLTD
61 GF Score
Price ₹667.10
GF Value ₹954.24
Valuation Significantly Undervalued
! 3 Warning Signs
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What is IST Cyclically Adjusted PB Ratio?

Note: If the price history is too short, we do not calculate current Cyclically Adjusted PB Ratio for this stock. All the historical data is shown as the company's primary share's data instead.

Shiller PE for Stocks: The True Measure of Stock Valuation


IST  (NSE:ISTLTD) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value 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 PB Ratio should give similar results to regular PB Ratio.


IST Cyclically Adjusted PB Ratio Related Terms


IST Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for IST's Cyclically Adjusted PB 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.

IST Cyclically Adjusted PB Ratio Chart

IST Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 1.01 0.56

IST Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted PB Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 1.01 0.00 1.02 0.00 0.56

NSE:ISTLTD vs : Cyclically Adjusted PB Ratio Comparison

For the Auto Parts subindustry, IST's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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.


IST Cyclically Adjusted PB Ratio vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, IST's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where IST's Cyclically Adjusted PB Ratio falls into.


NSE:ISTLTD
61GF Score
IST Ltd NSE:ISTLTD
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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IST Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB 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 PB Ratio.

IST's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

For example, IST's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book=Book Value per Share/CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=1451.425/330.2130*330.2130
=1,451.425

Current CPI (Mar. 2026) = 330.2130.

IST Quarterly Data

Book Value per Share CPI Adj_Book
201209 241.799 231.407 345.042
201212 0.000 229.601 0.000
201303 222.754 232.773 316.000
201403 270.975 236.293 378.680
201503 320.876 236.119 448.746
201603 387.548 238.132 537.405
201703 464.149 243.801 628.660
201803 549.963 249.554 727.718
201806 0.000 251.989 0.000
201809 0.000 252.439 0.000
201812 0.000 251.233 0.000
201903 631.420 254.202 820.226
201906 0.000 256.143 0.000
201909 663.579 256.759 853.417
201912 0.000 256.974 0.000
202003 688.511 258.115 880.829
202006 0.000 257.797 0.000
202009 736.796 260.280 934.761
202012 0.000 260.474 0.000
202103 791.832 264.877 987.150
202106 0.000 271.696 0.000
202109 851.762 274.310 1,025.347
202112 0.000 278.802 0.000
202203 885.250 287.504 1,016.755
202206 0.000 296.311 0.000
202209 916.959 296.808 1,020.160
202212 0.000 296.797 0.000
202303 950.913 301.836 1,040.313
202306 0.000 305.109 0.000
202309 1,041.154 307.789 1,117.007
202312 0.000 306.746 0.000
202403 1,125.181 312.332 1,189.598
202406 0.000 314.175 0.000
202409 1,228.960 315.301 1,287.083
202412 0.000 315.605 0.000
202503 1,262.728 319.799 1,303.848
202506 0.000 322.561 0.000
202509 1,396.089 324.800 1,419.356
202512 0.000 324.054 0.000
202603 1,451.425 330.213 1,451.425

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

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.

Is IST (NSE:ISTLTD) Overvalued in 2026?

Based on GuruFocus' analysis, IST stock appears to be undervalued. The current stock price of ₹667.10 is trading 30.1% below its estimated GF Value™ of ₹954.24. GuruFocus considers IST to be Significantly Undervalued.

Key valuation signals for NSE:ISTLTD:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: ₹954.24 vs. price of ₹667.10 (30.1% below fair value)
  • GF Score™: 61/100 with 3 warning signs

No single metric tells the full story. See the NSE:ISTLTD stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


IST Business Description

Comparable Companies
Other Exchanges 508807:India
Address A-23, New Office Complex, Defence Colony, New Delhi, IND, 110024
IST Ltd manufactures high-precision auto components. The company's business segments are based on its principal activities in precision engineering components and assemblies, SEZ development, and trading. Its products include Piston Cooling Nozzles Assembly, Throttle Shaft and Throttle Valve, Carburetor and Automotive Assembly Components, CNG Kit Components, and Tractor and Automotive Assembly Components. The company produces precision turned, milled, and drilled components, as well as stampings for various industries. IST Ltd operates both in India and internationally, with the majority of its revenue generated from the Indian market.
61GF Score

Get the complete analysis for NSE:ISTLTD

Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

₹667.10
Price
₹954.24
GF Value