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1) it is, by far, one of the least efficient languages in popular use today (example) 2) duck typing is a nightmare for writing reliable software 3) look up "global interpreter lock" 4) insane stuff like it is possible to get an undefined variable error at runtime on "compiled" code I won't...

As useful as the libraries might be, Python itself is an absolute shit language. It's really sad how such inferior languages like javascript, python, php, ruby can get entrenched due to network effects, path dependence and ignorant users.

Bro, it totally does work "in RL". You shouldn't appear SO CONFIDENT when you don't actually know what you're talking about. Not a good look.

If you have a margin account, what you want to do will work with just fine IB. Cash account will probably not work. With Reg T you can have 2x leverage, and with Portfolio Margin you can get even higher, so there is no problem to buy the TLT before SPY is sold, assuming you use 100% (1x) of...

Pekelo, you seem to be very focused on this particular scenario of a gap fill followed by a rally. Just because this scenario can happen doesn't really mean anything by itself. If you want to prove that using your own definition, all real gains actually happen during market hours, you're still...

This is funny, do you realize that you are denying a hard fact based on an (incorrect) interpretation of what glancing at a chart suggests to you? If you take a minute to think about it, a chart that is full of filled gaps (not full of unfilled gaps) is precisely what you would get if 100% or...

That's not how this works. Get a blog or your own forum if you want to control everyone. That's pretty immature sounding, hopefully you are young and will age out of this attitude.

Edge encompasses the whole trade, not just the entry. If you are such a good trader that you can be profitable with random entries, that just means you have an edge all the time (on average). If that is true, congratulations because you will be a billionaire very soon if you increase your...

Krugman, just because you started a thread doesn't mean you own it. I think your attempts to keep the thread "focused on topic" are what is rubbing some people the wrong way here. Just let people post what they want to and ignore anything you consider as not adding value. That said I think you...

How likely do you think it is that an "astute trader" is going to reveal anything material about their edges on a public internet forum?

"What order type can I use so that I never lose money?" LOL

I understand what you are saying, and it's simply wrong. You may may money trading this way, but you don't fully understand what you are doing. What you think: I can't predict the future because I have no edge, but if I place a trade here at 2:1 R/R I can make money. What is actually...

What is the sharpe or t-stat for buy and hold? Once you factor in commissions, taxes, execution risk, I doubt this strategy really comes out ahead enough to justify it. Unless you have other predictive edges on the market that you are filtering it with (like the overnight edges guy), then it...

Known about this for almost a decade now. There was a guy that ran a service based on it called Overnight Edges https://web.archive.org/web/*/http://overnightedges.com/ It is a legit edge but I don't personally trade it as the sharpe is too low.

Sounds like a variation of that old canard, "Risk management is the only real edge in trading". I'm sorry but but this is just untrue and shows a fundamental misunderstanding of trading. There are only 2 ways to make money in trading: 1) Luck, 2) Having an edge. It is a mathematical fact that no...

Was going to post something similar but ph1l beat me to it: Since you are walkforward, the next likely source of overfitting would be in the choice of indicators. Did you think of a large number of them and then throw out ones that didn't work? Or did you leave them all in and have the system...

I couldn't tell from the description, is your system operating in a completely walkforward manner, where at every given timestep, only data from the past is used? If so, then you might have something here, otherwise it's likely meaningless.

Trump will never actually do anything meaningful to curb immigration. When it comes to issues his base actually cares about, he is all talk no action. Sad!

Sharpe ratio is the most important metric in my experience.

I didn't mean to imply that everyone who does buy and hold is lazy. On the contrary, it is a great choice for many people as they can focus all their time being productive in other ways. But people who are too lazy to do a backtest should not attempt to run their own hedge fund, it is not likely...