The Philadelphia Semiconductor Index sank ~10% for the week, its largest weekly fall in over a year, and is now down ~20% from its late-June all-time high (Reuters)

Reuters : The Philadelphia Semiconductor Index sank ~10% for the week, its largest weekly fall in over a year, and is now down ~20% from its late-June all-time high — A brutal week for chip stocks — the same names that fueled this year's blistering market rally — has left investors from Seoul …