Employers react Less job security. stock definition: 1. a supply of something for use or sale: 2. the total amount of goods or the amount of a…. For those close to retirement, a stock market plunge can mean continuing to work longer than you’d planned to let those accounts rebound. If you’re employed, your business may invest in the market, meaning that a loss could affect your next pay raise and, eventually, your job security. Bitcoin has been showing a tight correlation with the stock market – the largest correlation in the asset’s young history.. A historically accurate sell signal has just triggered across three major United States stock indexes, which not only could cause another major selloff across all markets, but it could cause Bitcoin and the rest of the crypto market to plunge in tandem. What does a stock market plunge mean for you? Learn more. On Monday, the Dow picked up where it left off on Friday and continued to plunge, dropping 1,175 points.