STRATEGY Strategy · Updated April 2026 · ~5 min · For TradingView desktop 3.2.1

Write a Bitcoin EMA Cross Strategy in Pine Script and Backtest It

Turning "I feel this makes money" into "the data says so" takes one snippet of Pine Script. This BTC EMA-cross strategy runs as-is.

Open the Pine editor and paste

//@version=6
strategy("BTC EMA Cross", overlay = true,
         initial_capital = 10000,
         default_qty_type = strategy.percent_of_equity,
         default_qty_value = 20)

fast = ta.ema(close, 21)
slow = ta.ema(close, 55)

if ta.crossover(fast, slow)
    strategy.entry("Long", strategy.long)
if ta.crossunder(fast, slow)
    strategy.close("Long")

plot(fast, color = color.purple)
plot(slow, color = color.gray)

Switch to BTCUSD daily, click Add to chart, and the Strategy Tester auto-generates a report and marks each trade.

Read four numbers first

1. Max drawdown: look at it before net profit — crypto drawdowns routinely exceed 50%; if you can't stomach it you can't run it;
2. Payoff × win rate: only the product is the expectancy;
3. Number of trades: under 100 has no statistical meaning;
4. Fees: crypto fees and slippage aren't small — fill them honestly.