Smart City Development Holdings Limited (HKG:8268) shareholders that were waiting for something to happen have been dealt a blow with a 28% share price drop in the last month. For any long-term shareholders, the last month ends a year to forget by locking in a 50% share price decline.

Although its price has dipped substantially, there still wouldn't be many who think Smart City Development Holdings' price-to-sales (or "P/S") ratio of 0.2x is worth a mention when the median P/S in Hong Kong's Construction industry is similar at about 0.3x. Although, it's not wise to simply ignore the P/S without explanation as investors may be disregarding a distinct opportunity or a costly mistake.

How Has Smart City Development Holdings Performed Recently?

The revenue growth achieved at Smart City Development Holdings over the last year would be more than acceptable for most companies. It might be that many expect the respectable revenue performance to wane, which has kept the P/S from rising. If that doesn't eventuate, then existing shareholders probably aren't too pessimistic about the future direction of the share price.

How Is Smart City Development Holdings' Revenue Growth Trending?

The only time you'd be comfortable seeing a P/S like Smart City Development Holdings' is when the company's growth is tracking the industry closely.

If we review the last year of revenue growth, the company posted a terrific increase of 25%. However, this wasn't enough as the latest three year period has seen the company endure a nasty 26% drop in revenue in aggregate. Accordingly, shareholders would have felt downbeat about the medium-term rates of revenue growth.

Comparing that to the industry, which is predicted to deliver 13% growth in the next 12 months, the company's downward momentum based on recent medium-term revenue results is a sobering picture.

With this information, we find it concerning that Smart City Development Holdings is trading at a fairly similar P/S compared to the industry. It seems most investors are ignoring the recent poor growth rate and are hoping for a turnaround in the company's business prospects. Only the boldest would assume these prices are sustainable as a continuation of recent revenue trends is likely to weigh on the share price eventually.

What We Can Learn From Smart City Development Holdings' P/S?

Smart City Development Holdings' plummeting stock price has brought its P/S back to a similar region as the rest of the industry. We'd say the price-to-sales ratio's power isn't primarily as a valuation instrument but rather to gauge current investor sentiment and future expectations.

We find it unexpected that Smart City Development Holdings trades at a P/S ratio that is comparable to the rest of the industry, despite experiencing declining revenues during the medium-term, while the industry as a whole is expected to grow. When we see revenue heading backwards in the context of growing industry forecasts, it'd make sense to expect a possible share price decline on the horizon, sending the moderate P/S lower. If recent medium-term revenue trends continue, it will place shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

Before you settle on your opinion, we've discovered 1 warning sign for Smart City Development Holdings that you should be aware of.

If strong companies turning a profit tickle your fancy, then you'll want to check out this free list of interesting companies that trade on a low P/E (but have proven they can grow earnings).

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.