noun
stock speculation; playing the stock market
Refers to speculative trading in stocks, often with a nuance of risk-taking rather than long-term investment.
彼は株式投機で大きな利益を得た。
He made a large profit through stock speculation.
株式投機はリスクが高い。
Stock speculation is high-risk.
株式投資 is general stock investment, while 株式投機 emphasizes speculative, short-term trading.
Compound of 株式 (stock) and 投機 (speculation).