Warren Buffett's $4.1 billion stake disclosure causes the stock of an Apple supplier to rise by 8%.

Taiwan Semiconductor Manufacturing Co. (NYSE:TSM), a supplier to Apple Inc. (NASDAQ:AAPL), saw its shares rise by about 8% on Tuesday on the disclosure of a new.1 billion stake by Warren Buffett's Berkshire Hathaway (NYSE: BRK-A) (NYSE: BRK-B).

What happened: According to a filing, the Omaha-based company bought nearly 60.1 million American depository receipts in TSMC during the most recent quarter that ended on September 30.

After falling to a two-year low last month as a result of a dramatic slowdown in global chip demand, Buffett's business made a rare entrance into the tech industry on Tuesday, sending TSMC's shares soaring high in Taiwan.

Other holdings were also reported by the business, including $297 million in Louisiana-Pacific Corp. (NYSE:LPX), a manufacturer of building materials, and $13 million in Jefferies Financial Group Inc. (NYSE:JEF).

Additionally, Berkshire sold its stake in Store Capital Corp, a real estate firm that announced its intention to go private in September.

The Taiwan-based chipmaker, which also provides components to Qualcomm (NASDAQ:QCOM) and Nvidia Corp. (NASDAQ:NVDA), announced an 80% increase in its most recent quarterly profit before this.

Following a significant supply shortage brought on by Vladimir Putin's war in Ukraine, TSMC announced last week that it is searching for local sources of neon gas. The company's senior vice president revealed that it is collaborating with a number of gas suppliers based in Taiwan to investigate the possibility of producing neon gas domestically in three to five years.

Tech stocks were never a favourite of Buffett's. But recently, that has changed. The $306.2 billion equity portfolio of his company is dominated by Apple.