Facebook shares hit a record high

According to Bloomberg News, according to Bloomberg News, Facebook's stock price hit a record high on Monday, rising to $81.45, due to factors such as the growth of mobile advertising business, expansion of advertising services, and rising Instagram valuation.

On Monday, Facebook shares rose 1.57, or 1.97%, to close at $81.45, the highest since May 2012 IPO. Facebook's share price has risen 49% this year, and the S&P 500 index has risen 12% over the same period.

Since the beginning of this year, Facebook’s mobile business has achieved rapid development. At the time of the company's IPO, mobile business revenue still accounted for only a small percentage of its advertising revenue. In 2012, Facebook paid $1 billion to acquire Instagram. This transaction brought huge returns. Citibank analysts said Instagram's valuation has risen to $35 billion.

Citi analyst Mark May said that considering the faster-than-expected increase in the number of Instagram users, advertising revenue has also grown, and he has valued Instagram at $35 billion. This valuation allows Instagram to compare with the $3.65 billion market value of American Airlines Group and the market value of $37.9 billion of Kraft Foods.

Monness Crespi Hardt & Co analyst James Carmack said: "Although Facebook's share price is likely to benefit from the overall stock market's overall rise, but we are seeing growing confidence that the commercialization of Instagram has become a major incentive for the recent rise "Kamark pointed out that advertisers are advertising through message streams, which is very suitable for Instagram applications in 2015, especially considering that it already has 300 million users.

Analysts generally expect Facebook’s revenue to increase by 46% in the fourth quarter to US$3.78 billion. In the previous quarter, mobile advertising accounted for 66% of total ad sales, up from 62% in the previous quarter and 59% in the first quarter. EMarketer, a market research firm, predicts that global advertising market sales this year will reach $140.7 billion, and Facebook’s market share will reach 8%, which is higher than last year’s 5.8%.