Market bottoms rarely arrive with reassurance. They show up when skepticism turns casual — when stocks stop being debated and start being dismissed. That's the backdrop against which Apple Inc‘s (NASDAQ:AAPL) CEO Tim Cook's purchase of Nike Inc (NYSE:NKE) shares is suddenly getting serious attention.Track NKE stock here.Earlier this year, Tesla Inc (NASDAQ:TSLA) found its footing just as public commentary around the stock turned openly mocking, including a high-profile jab from Tim Walz. The remark didn't c ...