[caption id="attachment_1447" align="alignright" width="210" caption="Photo by rednuht"][/caption]
Whipsaw is a wonderful description of a trade. Specifically you buy some stock, it goes down 20% and you sold out, intending to preserve whatever capital you have left. And the next thing you know, the stock goes but 100%! Shiok right!
Actually the fear of getting whipsawed is so great that it causes a lot of investors to make silly mistakes. But if you think about it, even if you really get whipsawed, it's not a big deal except for the psychological factor. Say you cut loss at 10% and the stock subsequently rallied, so you would have lost just 10%. But if you did not cut loss and stock continues to decline, you will eventually lose maybe 50-60%.
Let's for argument sake, make the example a bit more mathematical. Say you bought a stock at $10 and it plunges to $8. There is a 50% chance that it may rebound 50% to $12 and 50% chance that it plunges another 50% to $4.
So you have two choices now:
Choice 1: If you cut loss, you lose $2
Choice 2: You wait out the storm,
If you get lucky, you make $2, as the stock rise back to $12
If you are damn suay and the stock continue to plunge to $4, you lose $6
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