Texas Instruments (TXN) Bad earnings take chip company down. Falls to $23.28 from 52-week high of $38.79.

AMD (AMD) Chip company may have changed CEOs but Wall St. still thinks company is dead. Sells down to $4.32 from 52-week high of $15.69.

Merck (MRK) Major drug trial goes wrong. Company suspends guidance. Drops to $31.15 from 52-week high of $61.62.

VMWare (VMW) Hottest IPO of last year. CEO pushed out recently. Company mutes expectations. Falls to $34.17 from 52-week high of $125.25.

Assured Guaranty (AGO) Moody’s may cut rating. Dives to $7.95 from 52-week high of $30.22.

SanDisk (SNDK) Grim earnings. Falls to $13.06 from 52-week high of $58.60.

Douglas A. McIntyre