Shares in Alphabet Inc (Nasdaq: GOOG), the company better known as Google, are rising again in premarket trading today.

The stock is currently up by more than 4% following yesterday’s rise of 6.2%. If those gains hold, Google could be set to become the world’s next company with a $4 trillion market cap today.

Here’s what you need to know.

Why are GOOG shares rising?

Shares in Alphabet have had a stellar run as of late.

Yesterday, they rose more than 6.2%. Over the past five days, they have been up more than 11.5%. Over the past month, they have jumped more than 22%. And over the past six months, they have been up more than 87%.

And that’s before today’s further 4% gain in premarket trading.

So why is Alphabet’s share price jumping recently, particularly over the past week?

There’s

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