Panic sell/short reason for new investors!
1) price is falling so i must short it or clear my previous position even though there is nothing bad in the stock, no fundamental bad news and i am in good profit level. :d. The most classic reason.
2) some expert or news channel guru made bad comment on it. Then i must sell it. As the expert knows all, complete ignoring time frame, reason for the negative news etc etc.
3) bad earning news. Sell it. As the company is going to collapse and there will be no other quater result.
4) my broker said this is going to fall and he suggested me another better option, he missed that more he trades more the broker earn. :d
add if you have any more...