Alphabet (GOOG 9.96%) (GOOGL 10.22%) stock, which started this week on a high note -- rising 4.6% Monday on news Apple (AAPL -0.35%) may license Google's Gemini for use on the iPhone -- is looking as if it may end the week on a similarly high note, up 2.1% through 11:55 a.m. ET.

On Friday, investment banker Wedbush announced it's raising its price target on Alphabet stock to $175 a share, up from $160. The banker also said it's putting Alphabet stock on its "best ideas list" of stocks most likely to reward investors over the next 12 months, as StreetInsider.com reports today.

What Wedbush said about Google

Considering how the week began, you'll be unsurprised to learn that artificial intelligence is key to Wedbush's buy thesis. "Alphabet ... has an unmatched breadth of data to develop and train AI models across text, images, and video, [and] a massive user base spanning Google Search, YouTube, Android, and other Google applications," argues Wedbush. And given these advantages going into AI battle, Wedbush simply believes that investor worries about Google coming late to the game are "overstated."

Simply put, Alphabet will find a way to catch up to ChatGPT and other rivals -- an argument Apple's endorsement would appear to agree with.

Is Alphabet stock a buy?

Beyond the AI argument, though, Wedbush reminds investors that Alphabet continues to dominate in what has always been its core business -- digital advertising. As Statista data confirm, Alphabet's Google remains No. 1 in this market with a 24.6% share in the U.S. and an even more dominant share of the mobile internet search activity that supports Google's ads market -- 95%.

For all the hype around AI lately, it remains an open question whether companies will find AI tools valuable enough to pay for. But even if the AI bull argument falls apart, Alphabet still has a healthy core business to fall back on. With dominant market share and a stock valued at only 25 times earnings -- 12% cheaper than the S&P 500 index, by the way -- Alphabet stock looks like a buy to me.