I make plenty of mistakes trading. Every real trader does.
True. But then few "real traders" expect others to pay for their mistakes.

I make plenty of mistakes trading. Every real trader does.

Can anyone explain to me why day trading is considered not safe?
Thanks in advance

Sounds a bit like all-or-nothing thinking to me. So because an intraday trader cannot compete with HFT firms at the millisecond level, he must increase his time frame by a factor of many thousands? Nothing in between?Re-posting this as I initially put it in the wrong thread.
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There are many problems with day trading. Here is my 10 cents.
First, the"strait talk" about the daytrading industry: The reason it is promoted is because it makes brokerage firms and the often related market makers a great deal of money. That is why you have a platform with all the blinking lights and "info" and "analysis". Much like a "one armed bandit" in Vegas.
So, clearly the problem number one is transaction costs, which most retail traders woefully underestimate or never bother to estimate in the first place. These folks are simply chum for the industry, nothing more. To the firm the "day trader" is a sucker or warm body that produces revenue for the firm or brokerage, nothing more. U wash out and are then replaced, they have the mathematics down while the day trader keeps his "dream alive" by reading books on discipline and being "in the zone".
The second problem is that over very short term holding periods, there is no chance to benefit from the market drift upwards, which is what causes long term investing to work.
The third problem is that most of the "analysis" on day trading does not take into account intraday variations in market liquidity, which in practice causes it to mostly be invalid and money-losing even though on paper or simulation it appears to work. In the time I have read ET ive seen "gurus" proffering ideas or buy points where I know there is no market liquidity in practice. Its a "paper, simulated trader" mirage.
The fourth problem is that it typically precludes one from having gainful employment and investing for the long term.
The fifth problem is that the typical day trader give up the benefits of a "job" but also their trading experience has no connection to other fields, creating a massive career risk, marriage risk, etc. It can be ruinous.
The sixth problem is that most day traders are the "dreamer" type who go to "rich dad, poor dad" seminars - they want to spend money on "education" but don't ask them to learn any serious analytical skills, its too much work for them.
The seventh problem is that dreamer types often have a thin skin, and worry what other people will think of their career choice, so they develop mental issues (Ive seen this in comments on this board many times)
The eight problem is most want to earn a living from a small account, which is very failure prone and doomed to eventual failure - In the small % of time the trader seems to be doing ok, they eat all the seed corn so never grow, then ultimately wash out when a small run of bad luck hits.
The ninth problem is many day traders learn "trading lessons" that almost guarantee they will never grow. They will just grind and burn commission. They never figured out that 90% of the "trading advice" out there is designed to protect clearing firms and brokerage houses, not help the trader make money. U see this type very frequently proffering their "great trade management ideas" to others, as if they are gurus.
The ninth problem is that they don't attempt to understand the industry in the slightest. They never visit a real trading firm or HFT trading firm to see who the competition is. They don't realize they are like a start up, undercapitalized corner store attempting to compete against wal-mart on price and selection.
The tenth problem is that most day trader overestimate their intelligence and ability to win. We have heard in all the books that "its not intelligence, is discipline" well, that is hogwash. Perhaps that was true in the past, it is not true anymore. Today people are high level scientists, top notch engineers, or extremely creative and unconventional people with substantial resources.
That said, I know some great day traders. The difference is they are very smart people, often managing a relatively large amount of capital for a proprietary firm, fund, or backers, have vast analytical skills that the 'dreamers" can't hope to match. And even then the non-market makers/HFT typically transition to longer holding periods.
I read all the articles about day trading, 99% of them said it is one of the most dangerous things in the world.
I just can't understand why, why day trading is dangerous?
Because 99% of traders don't have thoroughly-tested, consistently-profitable trading plans

Sounds a bit like all-or-nothing thinking to me. So because an intraday trader cannot compete with HFT firms at the millisecond level, he must increase his time frame by a factor of many thousands? Nothing in between?
As for transaction costs and churning, again, all or nothing? Hanging tough when a trade is going against you is the safe play? So then, where exactly do you draw the line? And more importantly, why do you get to draw it for anyone other than yourself?
You liken an individual intraday trader to a start up, but imply in your mention of the fourth problem that the person should have employment elsewhere. So the hobbyist with no information edge or the time to closely monitor the market is your ideal individual trader?
You are basically making the case for everyone here to just buy an index fund to capture upward drift (issue number two).
That is true. It is your viewpoint. And I'm sure it is shared by others. However, you did not address the substance of my observations about your viewpoint. Rather, you homed in on my choice of phrasing of a single sentence.You are making false inferences as you focus on my view only as a potential challenge to your viewpoint - not the substance of my writing itself. U ascribe to me powers i don't have, for example "why do you get to draw it for anyone other than yourself".
Such a silly comment - i only expressed a viewpoint, my own, and nothing more. Which is based on the facts of the game, nothing more. If you paid attention, with an open mind, you might learn something - how the real traders think.
nobody has it...
for the the 1% that think they have , the day will come
i generally dislike the word "plan" (not because it reminds me the ineffective 5-year plans of the Soviet era, but because it assumes that we know what will happen in the market and consequently that we know what we will do, which we do not),
I like the term "method" , it does not assume anything, just give us set of rules how to react on what is happening on the market now
but those rules are not bulletproof, regardless of how many times they been tested, and how much consistent money they helped to make...