Apple, which began August by hitting $200 a share and crossing the trillion-dollar valuation mark the following day, hit another new all-time closing high of $227.63 on August 31.
The rally capped off an historic month for Apple, ahead of the expected arrival of a new iPhone lineup and other new hardware on Sept. 12. The price had reached as high as $228.78 on Friday morning.
The stock performance can best be attributed to lots of good news for the company and very little bad news.
On August 1, one day after a positive quarterly earnings report, Apple's stock hit $200 a share for the first time since the 2014 stock split. The next day, Apple became the first American company in history to reach a market capitalization of $1 trillion.
Later in August, investor Warren Buffett announced that he had once again upped his Apple stake, and a leak appeared of two iPhone models that are expected as part of this fall's lineup of that key Apple product.
As a result, the stock climbed steadily throughout the month, from the $200 milestone on the 1st to $227.63 on the 31st. It's just the latest of several times this year Apple has broken its all-time high valuation.