Talking Tom Cat was an instant hit, launching a franchise whose titles have reached No. 1 in more than 100 countries on the App Store. Today, almost 350 million monthly active users support the apps, and Tom’s YouTube channel has more than 2 billion views. Unlike many mobile app creators, the Logins have proved adept at turning popularity into profit. Playing Talking Tom triggers an onslaught of advertising and in-game purchase offers, and Outfit7 earns more than $100 million a year. In early 2016 the Logins decided to cash out, hiring Goldman Sachs Group Inc. to find the most lucrative deal. ... The industrialists were willing to match the Logins’ asking price of $1 billion and let their team maintain autonomy. Samo and Iza signed away their company—having never taken money from outside investors, their stake was worth about $600 million. ... It’s hard to see the synergies between a maker of chemical solvents and a digital cat perched over a toilet. And curiously, the buyer, which had recently been renamed Zhejiang Jinke Entertainment Culture Co., had revenue of only $133 million in 2016, according to Bloomberg data pulled from regulatory filings, and its gross profit was $55 million. Jinke won’t say where the money to buy Outfit7 came from. ... The deal activity can best be understood as a consequence of quirks in the Chinese stock market. In China, industrial companies trade at valuations they’d never receive elsewhere in the world. ... some may trade at as much as 100 times their annual earnings—more than four times the multiple of General Electric Co. This means they can acquire companies at what is effectively a discount. ... Chinese companies are betting that by adding game studios that have better margins than a stodgy industrial business, their stock price will rise.