I hope not, plenty of evidence of the damage TS's do to portfolios. There is actually a good thread on here somewhere that comes to the conclusion that even for traders they are damaging - let alone investors.
Hi Galumay.
Very important to draw a distinction between a directionally informed and an arbitrary exit when considering that thread.
I reckon that requires and extremley broad definition of a TS, to suggest that Buffett uses them because he sells a company if the fundamentals change sufficiently is a very, very long bow!!
Maybe not so long really - If you are wrong you cut it. - Universal rule really. Just the definition of wrong varies.
The day you can make more money than the most successful investor in history you will be well entitled to suggest he totally drops his strategy and adopts one that is the opposite of everything he believes!
Maybe you missed the last line and wink.