The article there looks at ONE use of technical analysis which is a moving average crossover. The nicest houses I know are owned by traders who know how to use technical analysis. it is very interesting that such an uniformed opinion is the top rated comment on YC tho.
cirgue|2 years ago
cowthulhu|2 years ago
nameless912|2 years ago
andersentobias|2 years ago
Fully systematic traders exist and make money. Efficient Markets Theory says they shouldn't, but they do anyway. EMH is probably written under stricter/ideal conditions though.
If one wants to take a systematic/technical analysis approach though, I would look at the entire universe of stocks, whereas use a fundamental approach in individual stocks.
But yeah. I'm just an amature. What do I know.
felix318|2 years ago
hattmall|2 years ago
o0o0o|2 years ago
That's a good point. Best traders know how to use technical analysis, they just don't use it to invest their own money.
TheOtherHobbes|2 years ago
There was a newsworthy situation in the UK a couple of years ago where a star manager crashed and burned. He locked his trading account, with everyone's money still in it, and continued charging fees.
Apparently this is quite legal.
Ekaros|2 years ago
mcguire|2 years ago
NovemberWhiskey|2 years ago
If you have a large group of people who take risks while trading, and they form strategies indistinguishable from flipping a coin (like technical analysis), then at the end of the day you're going to have a lot of ex-traders who failed to make money and a few that look like rock stars - because taking large risks and being lucky is a "good" way to make money fast. It's the very definition of survivorship bias.
fnovd|2 years ago
suaptpickle|2 years ago
I don't win; I'm out the dollar.
I buy a stock for a dollar.
It goes down 50% tomorrow. Then up 25% the next day and so on it fluctuates like a train going through the mountains.
One point in time it is low and another point in time it is high. I prefer to leave the train when it is high on the mountain.
i e. Picking a stock is a gamble but unlike the lottery I get to play the same game with the same money everyday until I win or die.
pinkmuffinere|2 years ago
jacobsenscott|2 years ago
highfrequency|2 years ago
hattmall|2 years ago
amluto|2 years ago
taffer|2 years ago
JumpCrisscross|2 years ago
On the sell side, sure--you know when they'll under or overpay. Anyone buying retail flow should be running these models.
Technical analysis just looks at the surface of the order book--the transaction layer. If you're integrating the book, you can see when the surface is misleading and profit from it. There are technical heuristics, e.g. dead cat bounces, round-number tendencies, et cetera which are based in reality, part flow of funds and part psychological. But technicians' sole reliance on stock charts necessitates blindness to those underlying conditions.
In summary, a stock's near-term price history can, on its own, provide information that predicts the next tick. It's just a known subset of a broader set of signals. That the delineation is known makes those relying on these strategies possible to arbitrage.
bilater|2 years ago
lxgr|2 years ago
One interesting thing about the stock market is that it’s entirely possible to be successful in it, attributing that success to strategy X, yet to be completely wrong about that.
It’s actually not limited to the stock market – there’s tons of professionals out there that are completely unaware of why what they do works. This makes many people nervous, and they try to come up with a rationalization or mental model for it, and sometimes they get it completely wrong.
arde|2 years ago
jjav|2 years ago
By itself that doesn't mean anything, surely you realize?
What percentage of technical analysis traders own the million dollar houses?
You definitely can make huge amounts of money on short term trades if you get lucky. So occasionally a TA trader will become very rich and have a mansion.
But, do more than 50% of them strike it that rich? If not, it's just random.
It's like saying that powerball winners have mansions, therefore the best investment strategy is to buy powerball tickets.
ddq|2 years ago