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NexPips SDK

EMA

EMA

At a glance — Exponential Moving Average: seeded by an SMA over the first period bars, then smoothed exponentially (ema = α·value + (1 − α)·prevEma, α = 2/(period + 1)). Reacts faster than SMA to recent prices.

Signature

const ema: Series = api.use(EMA, { source: 'close', period: 20 });
FieldTypeDescription
periodnumber (≥ 1)Look-back window.
sourceSourcePrice source.

Warm-up: period bars.

Example

indicators/ema-crossover
import { crossedOver, crossedUnder, defineStrategy, EMA } from '@nexpips/sdk-trading';


/**
 * Croisement de moyennes exponentielles. Golden cross (EMA rapide passe
 * au-dessus de la lente) → entrée ; death cross → sortie. Montre `EMA`,
 * `crossedOver` et `crossedUnder`.
 */
export default defineStrategy({
  symbol: 'EURUSD',
  timeframe: 'H1',
  risk: { maxRiskPercentPerTrade: 1, maxOpenPositions: 1, maxDailyLossPercent: 5 },
  setup: (api) => {
    const fast = api.use(EMA, { source: 'close', period: 12 });
    const slow = api.use(EMA, { source: 'close', period: 26 });


    return {
      onBar(ctx) {
        if (ctx.position.isFlat && !ctx.position.hasPendingOrder && crossedOver(fast, slow)) {
          ctx.order.marketBuy({
            riskPercent: 1,
            stopLoss: { type: 'atr', period: 14, multiple: 2 },
            takeProfit: { type: 'rr', value: 2 },
          });
          return;
        }


        if (ctx.position.isLong && crossedUnder(fast, slow)) {
          ctx.order.closePosition('ema death cross');
        }
      },
    };
  },
});

Golden/death cross of EMA(12) and EMA(26).

See also