Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of Chinese hotel chain 7 Days Group Holdings (NYSE: SVN) are living the suite life today, jumping as much as 12.7% on higher-than-average trading volume.

So what: 7 Days was supposed to have an earnings report by today, which could have explained the move, but the release has been moved to next week. However, news of relaxed income tax laws in China looks like a serious benefit for companies that depend on Chinese citizens with money to spend -- such as 7 Days.

Now what: Shares of rival chain China Lodging Group (Nasdaq: HTHT) also saw a healthy gain today, but Home Inns & Hotels Management (Nasdaq: HMIN) got a much smaller boost. Investors clearly see the tax benefits spreading unevenly across the Chinese hospitality market. The outcome is a little curious because 7 Days is the only one of the hotel-chain threesome that isn't profitable today.

Interested in more info on 7 Days Group Holdings? Add it to your watchlist.

Fool contributor Anders Bylund holds no position in any of the companies discussed here. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool is investors writing for investors.