Fueled by U.S. wireless carriers’ reports of strong early orders for the iPhone 7 as well as arch-rival Samsung Electronics’ widely-publicized recall of potentially exploding Galaxy Note 7 smartphones, shares of Apple were up 4.6% at $112.57 and had gained 7% in the past two days.

Its market capitalization reached nearly $607 billion, compared to $535 billion for Alphabet (GOOG) and $440 billion for Microsoft (MSFT).

After sinking to a two-year low in July that had portfolio managers describing Apple as a value stock and no longer a growth play, shares of the world’s most valuable listed company have since rebounded 25%.

On Tuesday, Sprint (S) said pre-orders for the iPhone 7 were up nearly four times compared to last year’s iPhone. T-Mobile (TMUS) said pre-orders rose nearly four times compared with its next most popular iPhone.

Potentially adding to demand for Apple’s products, China’s quality watchdog said on Wednesday that Samsung (SSNLF) would recall 1,858 of its Galaxy Note 7 phones due to its fire-prone batteries, expanding the list of countries where the devices have been recalled.

“With the carriers telling Samsung owners that Samsung wants you to take your phone back into the store, well, people are going to look elsewhere,” said Longbow Research analyst Shawn Harrison.

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Specific details about sales of the new iPhone are scarce after Apple announced last week it would not release weekend sales data, saying the number was more a reflection of supply than demand.

With U.S. consumers less eager than in the past to replace their devices, global smartphone shipments are likely to grow less than 2% in 2016, compared to 10% last year, according to market research firm IDC.

Revenue for Apple’s fiscal year ending this month is likely to fall 8% and then grow 4% next year, according to the average estimate of analysts tracked by Thomson Reuters.