Free Trading Tools
Everything QuantEngines offers in one place — congressional-trade tracking, backtesting, market scanning, and more. All free, no signup required.
Congressional Trading
Track what members of Congress are buying and selling.
Congress Stock Trades
Latest real House & Senate trades from official STOCK Act disclosures, updated daily.
Open tool →Politician Tracker
Browse individual politicians and their full trading records.
Open tool →Trader Leaderboard
Congressional traders ranked by activity and estimated performance.
Open tool →Anomaly Detection
Automatically flags unusual, well-timed, or outsized trades.
Open tool →Network Analysis
Interactive graph of trading correlations between members.
Open tool →Trading & Market Tools
Test ideas and analyze the market — free, no account needed.
Backtesting Engine
Test trading strategies against historical market data.
Open tool →Strategy Builder
Create a strategy with a visual, form-based editor — no code.
Open tool →Strategy Library
Pre-built, ready-to-run strategies like MA crossover and RSI.
Open tool →Stock Scanner
Scan the market for setups, breakouts, and signals.
Open tool →Trade Signals
Data-driven signals surfaced from market and trade data.
Open tool →Advanced Charts
Interactive price charts with technical overlays.
Open tool →Market Dashboard
Free live market data at a glance.
Open tool →backtrader vs vectorbt
The same strategy through both libraries on the same bars — they agree to the cent, but only after pinning three defaults. With the divergence decomposed.
Open tool →Indicator Formulas (Verified)
RSI, ADX, ATR, MACD, Bollinger and Stochastic — each implemented independently and cross-checked against pandas_ta on real bars.
Open tool →statsmodels Import Reference
Which import paths work, measured by executing every statement — including the three that succeed and fail later.
Open tool →COT Report Positioning
Speculator and hedger net positioning for 11 futures markets, normalised by open interest and z-scored against up to 21 years of each market’s own history.
Open tool →Treasury Yield Curve
Today’s par curve plus every sustained 10y−2y inversion since 1990 — dates, durations and depths computed from Treasury’s daily series.
Open tool →Fundamental Screener
Accruals, asset growth and net share issuance for 3,000+ US filers, computed straight from SEC XBRL filings and matched to each company’s own fiscal year.
Open tool →Calculators
Closed-form math over the numbers you type in. These use no market data at all, so every figure they show can be checked by hand.
Position Size Calculator
Share count implied by your account size, risk per trade, entry, and stop-loss. Handles longs and shorts.
Open tool →Kelly Criterion Calculator
Edge-optimal stake from your win rate and win/loss ratio, with a half/quarter-Kelly comparison and growth-rate chart.
Open tool →Risk/Reward Ratio Calculator
Reward-to-risk ratio, each distance as a percentage of entry, and the breakeven win rate the ratio implies.
Open tool →Win Rate Significance Calculator
Wilson score confidence interval and exact binomial test — is your win rate distinguishable from chance?
Open tool →Black-Scholes Options Calculator
Theoretical value and all five Greeks for a European call or put, from spot, strike, expiry, volatility, and rate.
Open tool →Multi-Leg Options Payoff Calculator
Model spreads, straddles, and iron condors up to 6 legs — exact max profit, max loss, and breakevens.
Open tool →Max Sharpe Ratio Portfolio
Tangency portfolio weights from the closed form w ∝ Σ⁻¹(μ − rf·1), for up to five assets, with the derivation and a worked example.
Open tool →Sharpe / Sortino / Calmar Calculator
Paste a return series and get all three risk-adjusted ratios, annualized volatility, and max drawdown.
Open tool →