golfzoner,precisely !Take AGO ,for example,on a quiet...

golfzoner,
precisely !
Take AGO ,for example,on a quiet Friday,when the trading volume is only likely to be 500,000 to 800,000 shares, a short-sale of 200,000 shares can smash the share price 10 to 15 cents.
There is no benefit to any shareholder,the shorter does not own any shares(they 'borrow' them) and frankly does not care about the Company or its well-being.
I've seen your example and you are right---I follow "COURSE OF SALES" in stocks,incl AGO and you can spot trading irregularities and special crossed trades.
Cheers