The only thing Poker and Trading has in common is that you need appropriate money mangement. Meaning spreading you load wisely. If your average skillset beats midstakes(200nl-1000nl) than it is very foolish to sit @ a 2knl table or higher if there aren´t any fish on that table(meaning you are actually the fish at this table). Even if your bankrollmangament is good and you can afford it. Thats money management in poker in general. Sitting in games that are +EV for you. Finding out if this game is +EV or not is a whole different story I´d say it takes a lot of hands and experience to know if this game is profitable and within your money/risk management.
In trading there is a similar aspect regarding money management and risk management. You have to know in what situation you will enter according to you rules if the rules doesn´t apply you will not enter the market.
But I would guess that if you understand risk management in poker you have an advantage over other starting traders. But it doesn´t mean you beat the game.
I think if you want compare other aspects there is a lot more psychology in poker than in trading. I don´t want to offend anyone but if you play like 4 heads up tables at once you know what I mean.
Conversly you don´t really know your opponent in trading. You don´t know who took the short if you are taking the long. The main difference is that in Poker you can quit and there is another day. In trading if you have your trading plan, you have to stick to it even if you have 10 losers in a row otherwise you will lose the game.
I´m sure I could come up with other aspects regarding MM in poker and trading but I´d say it that way: My trading isn´t anywhere near to my poker game.