Air China Limited (HKG:753) shares have continued their recent momentum with a 25% gain in the last month alone. Unfortunately, the gains of the last month did little to right the losses of the last year with the stock still down 11% over that time.

Although its price has surged higher, you could still be forgiven for feeling indifferent about Air China's P/S ratio of 0.5x, since the median price-to-sales (or "P/S") ratio for the Airlines industry in Hong Kong is also close to 0.7x. However, investors might be overlooking a clear opportunity or potential setback if there is no rational basis for the P/S.

Check out our latest analysis for Air China

What Does Air China's P/S Mean For Shareholders?

Air China certainly has been doing a good job lately as it's been growing revenue more than most other companies. It might be that many expect the strong revenue performance to wane, which has kept the P/S ratio from rising. If you like the company, you'd be hoping this isn't the case so that you could potentially pick up some stock while it's not quite in favour.

Keen to find out how analysts think Air China's future stacks up against the industry? In that case, our free report is a great place to start.

Do Revenue Forecasts Match The P/S Ratio?

In order to justify its P/S ratio, Air China would need to produce growth that's similar to the industry.

Retrospectively, the last year delivered an exceptional 41% gain to the company's top line. Pleasingly, revenue has also lifted 109% in aggregate from three years ago, thanks to the last 12 months of growth. Therefore, it's fair to say the revenue growth recently has been superb for the company.

Turning to the outlook, the next three years should generate growth of 6.3% per year as estimated by the eleven analysts watching the company. That's shaping up to be similar to the 4.8% each year growth forecast for the broader industry.

In light of this, it's understandable that Air China's P/S sits in line with the majority of other companies. Apparently shareholders are comfortable to simply hold on while the company is keeping a low profile.

The Bottom Line On Air China's P/S

Air China's stock has a lot of momentum behind it lately, which has brought its P/S level with the rest of the industry. It's argued the price-to-sales ratio is an inferior measure of value within certain industries, but it can be a powerful business sentiment indicator.

We've seen that Air China maintains an adequate P/S seeing as its revenue growth figures match the rest of the industry. At this stage investors feel the potential for an improvement or deterioration in revenue isn't great enough to push P/S in a higher or lower direction. Unless these conditions change, they will continue to support the share price at these levels.

We don't want to rain on the parade too much, but we did also find 1 warning sign for Air China that you need to be mindful of.

Of course, profitable companies with a history of great earnings growth are generally safer bets. So you may wish to see this free collection of other companies that have reasonable P/E ratios and have grown earnings strongly.

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