Nintendo shares hit a fresh record high on Wednesday, continuing this year's massive rally that has been fueled by hype around the company's newly released Switch 2 console.

Shares of the Japanese gaming giant have jumped 46% this year, adding roughly $39 billion to the stock's value, according to a CNBC calculation of data from S&P Capital IQ.

The Switch 2 is the successor of the original Switch console, which was released in 2017. Nintendo unveiled details of the Switch 2 in January, and the device went on sale this month, leading to shortages of the console in some markets and even to stores operating special opening hours.

Nintendo this month said it sold 3.5 million units of the Switch 2 in the four days following its launch. The company has previously forecast sales of 15 million units in its fiscal year ending March 2026, though many analysts say that is a modest estimate and expect Nintendo to achieve higher numbers.

Nintendo's original Switch is its second-most successful console in history, selling over 152 million units since its launch to the quarter ended March this year. Its appeal lies in its hybrid nature — users can play the console on a TV, but can also detach it to use it on the go.

Investors are hoping the Switch 2 will replicate the success of its predecessor.

Nintendo has boosted the the success of its consoles through games involving strong franchises with characters and brands like Super Mario, Zelda and Pokemon. And the company has used its recognizable intellectual property and licensed it to movies and theme parks, boosting the success of its core video game product.

For Nintendo investors, that strategy has paid off. Since March 2017, when the original Switch was released, Nintendo shares have surged nearly 470%, according to S&P Capital IQ data. More than $81 billion has been added to the company's market capitalization over that period.