If you Google “world’s most valuable company,’’ the answer comes up Alphabet Inc.

At least it did on Tuesday, when the stock market value of Alphabet, the parent company of search giant Google, surpassed Apple Inc.’s for the first time. Alphabet ended the day up 1.7 percent at $531 billion; Apple dipped 2 percent to $524 billion.

Apple’s share price has been bruised in recent months by concerns that iPhone sales are cooling off. ­Alphabet’s shares caught up with ­Apple thanks to its report after the bell on Monday that quarterly earnings had surged on rising ad revenue.

Apple gives up bragging rights it has held since 2011, when it passed Exxon Mobil Corp.