CUPERTINO — Silicon Valley technology giant Apple on Thursday became the first public company in U.S. history to reach a $1 trillion market value after another strong quarterly earnings report and revenue outlook that lifted Apple’s shares.

Apple reached $1 trillion when its share price touched $207.05 Thursday.

Analysts calculated Apple’s market capitalization by multiplying the share price with how many shares are currently in the market.

Apple’s outstanding share count was at 4,829,926,000, according to the company’s 10-Q filing to the Securities and Exchanges Commission on Wednesday.

The milestone is the culmination of Apple’s growth and continued delivery of revolutionary products popular worldwide.

Experts pointed to the leadership shown by Apple’s late co-founder Steve Jobs and current CEO Tim Cook as pivotal to the company’s enduring success.

Chinese oil giant PetroChina Co. was the first worldwide corporation to reach the trillion-dollar market capitalization in 2007. It was short-lived, now trading at around $214 billion, Forbes reported Wednesday.

Apple’s climb has been a slow, steady advance built on consecutive quarters of solid growth. The final push came on the heels of Apple’s strong third-quarter earnings and good revenue guidance for the fourth quarter on Tuesday.

After its $38 billion one-time tax payment to the United States government in January under the new tax reform, Apple announced a $100 billion stock buyback plan to reduce the share count in the market. Apple had 335 million more outstanding shares a year ago, according to the 10-Q filing from August last year. Apple’s most lucrative revenue growth came from services like Apple Music and Apple Pay and wearables like AirPod earphones and Apple Watch.

A looming trade war between the United States and China could result in Apple products being hit with tariffs by China and could lead to higher prices.