I've been designing a stock trading model the past 2-3 years. I made a custom momentum oscillator that can be 'overlayed' to how a stock index moves (it also works on Apple). I've been keeping results the past two years and it's incredible. It doubles money almost every 4 months, or nearly 800% return a year. The model doesn't rely upon crazy options strategies, I just buy the accompanying 3x leveraged bull and bear ETF, over and over again.
The gains are actually very meager, I average one trade a day or 252 trades a year and the average win is .008%. But I go all-in on margin every time and it compounds quickly. The win rate over the past year has been about 75%, and the losses are actually smaller than the gains. It's very conservative that way in that day to day I'm just moving within a 1% change. I'm deeply excited because it's clear to me I'm underperforming the model's potential and that additional rules could extract more gains. The volume in these index ETFs and Apple are near unlimited so in the future it would be no problem to buy and sell hundreds of thousands of dollars worth, even millions. My model generally gives me between a 2 and 15 minute window to initiate a trade, so that's enough time to spread out high volume over both the index fund and its accompanying 3x leveraged ETF.