English version · The BULLSAGE app itself (cockpit, Academy courses, emails) is in French for now.

Position size and risk calculator for tradingPrepare before you execute.

Every tool reduces impulsive decisions and makes risk visible.

Risk calculator

Position size

Calculated before fees and slippage (the gap between the expected price and the price you actually get): a stop does not guarantee the exit price. The real loss can exceed this budget.

Theoretical loss budget€100.00
Theoretical quantity before fees20
Notional value€2,000.00
Distance to stop5.00%
Reward / risk ratio1:2.00Break-even win rate before fees: 33.3%
Available

Position sizing

Capital at risk, distance to the stop, maximum quantity and risk/reward ratio.

Available with an account

Paper trading

€10,000 of virtual money, real prices, fees, slippage (the gap between expected and actual price), P&L (profit and loss) and a journal.

Coming later

Multi-asset screener

Planned for the beta once reliable stock-market sources are integrated and validated.

Guide · Getting started

Learn trading from scratch

The free path, in order: understand, measure your risk, plan, practise.

Read the guide →

Guide · Getting started

Long and short: buying or short selling

The two directions of a trade, with worked examples and the risks of shorting.

Read the guide →

Guide · Markets

What is the Nasdaq?

The exchange, the Nasdaq Composite, the Nasdaq-100 and how the index is calculated.

Read the guide →

Guide · Markets

How to trade the Nasdaq-100

Hours, previous day high and low, opening range and traps.

Read the guide →

Guide · Markets

What is an ETF?

Listed index funds, fees, replication and risks for beginners.

Read the guide →

Guide · Crypto

What is Bitcoin?

How it works, volatility and a method to learn to trade it.

Read the guide →

Guide · Crypto

What is Solana (SOL)?

How it works, past outages, volatility and trading landmarks.

Read the guide →

Guide · Getting started

Free trading course: how to choose

What a real course contains, the red flags and the checks to make.

Read the guide →

Guide · Getting started

Reading candlestick charts

Body, wicks, doji, hammer: read a chart without over-interpreting it.

Read the guide →

Guide · Risk management

What is a stop-loss?

Definition, types of stop orders, slippage and beginner mistakes.

Read the guide →

Guide · Simulation

Free crypto trading simulator

Practise on Bitcoin, Ether and Solana with virtual capital.

Read the guide →

Guide · Method

Prepare a trading plan

Thesis, evidence, entry, invalidation, size and targets written down before acting.

Read the guide →

Guide · Risk management

Where to place your stop-loss

Scenario invalidation, volatility (ATR) and execution limits of a stop order.

Read the guide →

Guide · Risk management

Calculate a position size

A worked example, costs and the limits of the stop.

Read the guide →

Guide · Risk management

Calculate the risk/reward ratio

The ratio, the break-even win rate and the effect of fees.

Read the guide →

Guide · Simulation

Learn with paper trading

Prepare an exercise and review your journal without confusing simulation and reality.

Read the guide →

Guide · Progress

Keep a trading journal

Results in R multiples and a weekly review of how well you followed your plan.

Read the guide →

All BULLSAGE guides → · Trading glossary →