Air Canada (TSX:AC) Cyclically Adjusted PB Ratio: (As of Sep. 21, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
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.

TSX:AC Air Canada TSX:AC
84 GF Score
Price C$28.26
GF Value C$25.50
Valuation Modestly Overvalued
! 6 Warning Signs
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What is Air Canada Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Air Canada  (TSX:AC) 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.


Air Canada Cyclically Adjusted PB Ratio Related Terms


Air Canada Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Air Canada'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.

Air Canada Cyclically Adjusted PB Ratio Chart

Air Canada Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 6.99 4.49 3.51 3.35 2.52

Air Canada Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 3.68 2.96 3.14 2.77 3.57

TSX:AC vs DAL, UAL, LUV: Cyclically Adjusted PB Ratio Comparison

For the Airlines subindustry, Air Canada'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.


Air Canada Cyclically Adjusted PB Ratio vs Transportation Industry

For the Transportation industry and Industrials sector, Air Canada's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


TSX:AC
84GF Score
Air Canada TSX:AC
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Air Canada 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.

Air Canada's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

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

Adj_Book=Book Value per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=9.555/133.5265*133.5265
=9.555

Current CPI (Jun. 2026) = 133.5265.

Air Canada Quarterly Data

Book Value per Share CPI Adj_Book
201609 0.590 101.765 0.774
201612 4.462 101.449 5.873
201703 3.413 102.634 4.440
201706 4.407 103.029 5.712
201709 11.192 103.345 14.461
201712 12.531 103.345 16.191
201803 12.103 105.004 15.391
201806 14.341 105.557 18.141
201809 16.680 105.636 21.084
201812 12.104 105.399 15.334
201903 12.213 106.979 15.244
201906 12.620 107.690 15.648
201909 15.194 107.611 18.853
201912 16.678 107.769 20.664
202003 10.702 107.927 13.240
202006 6.886 108.401 8.482
202009 5.780 108.164 7.135
202012 5.163 108.559 6.350
202103 2.689 110.298 3.255
202106 1.613 111.720 1.928
202109 0.405 112.905 0.479
202112 0.025 113.774 0.029
202203 -3.238 117.646 -3.675
202206 -4.073 120.806 -4.502
202209 -5.392 120.648 -5.968
202212 -4.339 120.964 -4.790
202303 -4.224 122.702 -4.597
202306 -1.621 124.203 -1.743
202309 1.534 125.230 1.636
202312 2.221 125.072 2.371
202403 1.967 126.258 2.080
202406 3.250 127.522 3.403
202409 8.625 127.285 9.048
202412 7.027 127.364 7.367
202503 6.172 129.181 6.380
202506 6.034 129.892 6.203
202509 7.363 130.287 7.546
202512 8.796 130.366 9.009
202603 9.283 132.262 9.372
202606 9.555 133.527 9.555

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 Air Canada (TSX:AC) Overvalued in 2026?

Based on GuruFocus' analysis, Air Canada stock appears to be overvalued. The current stock price of C$28.26 is trading 10.8% above its estimated GF Value™ of C$25.50. GuruFocus considers Air Canada to be Modestly Overvalued.

Key valuation signals for TSX:AC:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: C$25.50 vs. price of C$28.26 (10.8% above fair value)
  • GF Score™: 84/100 with 6 warning signs

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


Air Canada Business Description

Address 7373 Cote Vertu Boulevard West, Air Canada Centre, Saint-Laurent, Montreal, QC, CAN, H4S 1Z3
Air Canada is Canada's largest airline, serving nearly 50 million passengers each year, together with its low-cost subbrand, Rouge, and contracts for regional connection flights into its network. Air Canada is a sixth-freedom airline, which flies many passengers on long-haul trips to and from the US with a layover in Canada.
84GF Score

Get the complete analysis for TSX:AC

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

C$28.26
Price
C$25.50
GF Value