Apple Inc. is now worth about $20.7 billion and trading above the $20,000 mark.
That makes it the most valuable U.S. company ever listed on the S&P 500, which includes all publicly traded stocks.
The company has risen more than $6 billion in value in just a year.
In the last month alone, it has risen over 2,000%, while the S.& ;P.
500 has risen just 8.9%.
Apple stock is valued at about $21 billion.
This is nearly the value of the combined value of Apple Inc., Apple (AAPL) and Microsoft Corp.
The companies reported their earnings on Wednesday, and Apple was the top performer.
Shares have risen nearly 2% since the start of the year, after the company reported record sales of nearly 4 billion iPhones last quarter.