I'm not sure if that is truth (today). The majority of stocks have been doing a massive nose dive within the past year. I own stocks of approximately 10 different companies. All, except AAPL, under water. So - 90%. In contrast, defense and healthcare stock market has seen a different trend. I own zero of these.
That's why I included the part about hedging against the market. There may be days where almost every stock goes down, but generally only around half will every go down more than the market.