Veeco Instruments Plunging (VECO)

eeco Instruments Inc. VECO is plunging, down more than 7% on heavy volume. The stock has traded more than 3.3 million shares today, whereas average volume is just over 2 million shares. The stock was downgraded yesterday by Citigroup, which sent the shares down a whopping 16%. It also hurt competitor Aixtron AIXG, and for now, it looks like the rally in LED stocks has flickered out. An article at TheStreet.com TSCM lays out an excellent case on why the sell off was overdone. Disclosure: no position in VECO