10) you just lost your job and you desperately need the money

9) you just went on strike and you desperately need the money

8) your wife/husband just found out you invested all your retirement funds in NOT when it was $5.00 and she/he doesn't want to hear about hole 49

7) you pressed the wrong button on the computer

6) you just got a good tip on another stock that is running now and you had to sell your NOT shares to come up with the money

5) you got caught in a margin call and needed to raise some money

4) you financed the purchase of your shares with credit and can't come up with the money for the payments

3) you came to the conclusion that maybe this stock isn't as good as you thought because the price just won't go up

2) you concluded that others are selling lots of shares and maybe they know something bad that you don't

1) you have some insider knowledge of when the news will be coming and know you can get back in just before that time....you are also trying to drive the price down by creating the perception that the pending news will be bad by selling into the bid constantly......you then try to increase your holdings at a lower cost when others sell due to the reasons 1-9 above

My opinion as always