Free, no-signup tools for ETF trend traders. Each one runs in your browser, needs no data or account, and performs plain arithmetic on your inputs. Use them to size positions, measure drawdowns, rebalance, and check what turnover costs.
How many shares to buy so a stopped-out loss costs a fixed, survivable amount.
How far your portfolio has fallen from its peak, and the gain needed to recover.
Exact dollar amounts to buy or sell to get each holding back to its target weight.
What commissions, spreads, and turnover really cost your portfolio each year.
Document your trend system step by step and flag the assumptions worth checking.
These are educational tools, not financial advice. They do the math on your inputs; they do not recommend any trade or strategy.
Paste your own price data and test a moving-average trend rule against buy-and-hold, with no lookahead bias.