This is the ProfitVision LAB interactive toolkit. Articles tell you how to think; the tools let you run the numbers yourself — with your age, your capital, your risk preference, on real historical data — and see whether the conclusion still holds. Someone else's answer is not necessarily yours, but after you run it, you will have one of your own.
Free to use with member registration. All site content remains free and open.
Enter your age, capital and risk preference to get a ceiling for leveraged ETF exposure — via the age rule or a discounted Kelly. The real risk of leveraged ETFs is not direction but volatility decay in choppy markets. This tool computes that drag explicitly, so you know exactly what you are carrying.
Enter your holdings and target weights, then backtest monthly / quarterly / semi-annual / annual rebalancing against threshold-based (5%/10%) rules on real price history. How often to rebalance — and at what drift — should not be decided by feel. Look at the actual return, volatility and turnover numbers first.
Compare the 4% rule, dynamic withdrawal and Guyton-Klinger guardrails side by side, with Monte Carlo simulation across thousands of market paths, and see your portfolio's 30-year survival rate. One percentage point of withdrawal rate can be the difference between money left over and running out early — run the numbers before you decide.
Up to 10 tickers across US, Taiwan and Japan markets, backtested up to 20 years on actual Yahoo Finance prices. Not the idealized compound-interest curve, but the real path through crashes and sideways markets — see exactly how much the entry cadence matters for the same money.