I am grateful for the opportunity and bought more for $2.20. It looked like some kind of capitulation to me and capitulation can be a good time to buy. The volume and price drop together told me. Actually now I think it was a combination of capitulation and margin calls. It certainly had nothing to do with NOT's value. At 2.20 the share price is well below tangible value let alone intangible value (i.e. blue sky). Thanks to the sellers.