Apple (NASDAQ:AAPL) investors are starting to wise up, and are now taking supply chain rumors with two salt shakers. A recent Reuters report noted that Apple supplier Foxconn saw a 19% year-over-year decline in sales, which was allegedly tied to weak demand for the iPhone. Previous rumors of this nature, such as one reported by the Wall Street Journal in January, have knocked shares down in the past. Perhaps CEO Tim Cook's warning last quarter not to read too deeply into supply chain rumors is resonating with investors.

In the video below, Fool contributor Evan Niu, CFA, explains why this time might actually be a little different.

Fool contributor Evan Niu, CFA owns shares of Apple. The Motley Fool recommends Apple. The Motley Fool owns shares of Apple. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.