Huh?? What does Algo got to do with trends? Look at the indices for the last 10 years! Had you simply bought and held an index fund throughout that time, you would have made a fortune already.
You would have also lost a big chunk in 2008 unless your started your account in 2009 due to blind luck or a magic crystal ball. Overall you'd still have a nice return if you include 2008 (low double-digit), but not a "fortune" unless you started with a huge amount or used leverage (a double-edged sword that might have blown your account up some point, like Dec. 2018).
Either way, no one has made short-term Zanger-like gains from buying and holding unleveraged index funds...ever. You missed the point of this thread.
The specific point I was talking about was playing trends, not buy-and-hold. Simple "Turtle" systems once worked pretty well, but markets now have enough whipsaws, reversals, chop and air pockets to make it very difficult to determine a strong trend and get out before you give up most gains (again, I'm not talking about buy and hold). That's the algos for you. And the Turtles didn't make Zanger-type returns either...more like 30% annually with some very big drawdowns...still enough to compound pretty quickly if you could handle your account falling 50% every couple of years or so.
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