After a golden first half of the year, investors have been getting a crash course in what gravity feels like from the stock market these past few weeks. A combination of poor job numbers and an increase in interest rates from Japan combined to give equities some of their worst sessions and weeks in years. It didn’t help that some of the big tech names, like NVIDIA Corporation NASDAQ: NVDA, which had done much of the work in pulling up the market all year, had been softening since June. But as we wrote about ...