Free Investing Tools
Analyze any portfolio right in your browser. No account, no paywall, nothing to install. Every tool runs on real data and is free to use.
FactorLens
Run Fama-French regressions on any portfolio to see its true factor exposures: market beta, size, value, profitability, and investment. No sign-up required.
Open tool →RiskDrawdown Analyzer
See max drawdown, the underwater curve, worst 12-month return, and the biggest historical crashes for any portfolio, with ETF history extended back to 1980. No sign-up required.
Open tool →Strategy simulator9Sig Simulator
Run Jason Kelly's 9% Signal on TQQQ and AGG from any start date since 1987, with your own starting amount and monthly contribution, next to QQQ and TQQQ held. No sign-up required.
Open tool →DiversificationPortfolio Overlap Calculator
Paste two portfolios and measure exactly how much they overlap, so you know whether you are genuinely diversifying or just doubling up. No sign-up required.
Open tool →Europe / UCITSUCITS ETF Finder
Find UCITS ETF alternatives to US-listed ETFs like SPY, QQQ, TLT, and GLD. Built for European investors under PRIIPs/KID rules, with 85+ mappings and ISIN codes.
Open tool →ETF drawdown history
Max drawdown, recovery time and worst 12-month return for 44 popular ETFs, from SPY and QQQ to TLT, GLD and leveraged funds.
Browse drawdowns by ETFCompare momentum ETFs
Compare returns, drawdowns and rebalancing over the same history.
FMTM vs SPMO comparisonLooking for the strategies themselves?
These tools sit alongside BestFolio's library of tactical and fixed allocation strategies, each backtested with monthly rebalancing signals.