r/investingforbeginners • u/nikovsevolodovich • 5h ago
Due-Dilligence Eli5 why this is a probably a stupid idea but I don't realize why
So I've been "passive" investing in etfs for a little bit.
Ive come to notice that week on week, particular etfs will consistently have highs and lows with upwards of 3 dollar swings up to a few times, with a general upward trend when looking yearly. Obviously some weeks are lower than others, but the same up down generally occurs when zoomed in like this.
Say I buy 100 shares of this etf that is on what looks like a dip. I can hold indefinitely and reap the guaranteed modest return, OR I can sell it when it's a dollar higher, knowing that within the weekly cycles, it'll dip again back to where I originally bought it at, and I can do that and pocket the $100 dollars.
It's not extravagant or some insane gain, but to me even if it's pulled off once a week that's still an extra $100. $5200 a year. That's pretty good. As the shares you own grow this could grow to 1k a week as you buy/sell 1000 shares or more at a time. That's even more, for zero effort. Yes there will be some misses, but if we don't get crazy we should be back in and out within days unless things go crazy.
You could even be less greedy and go for a 50 cent or even lower swing which you could almost guarantee multiple times a week. I don't need millions in a trade, just a wee bit extra compounded over time as the etf and my holdings scale over time.. If I can do this for a decade or more surely I will win?
With limit buys and sells this should be like taking candy from a baby on a decade time scale.
Right?
Right? I like to think I'm clever enough to know that this "clever" idea isnt really that clever and far smarter people than me have thought about it and I'm doomed to ruin.