P/E Ratio

A custom indicator created by TrendSpider on TrendSpider. You can import this custom indicator into your TrendSpider account. Don't have TrendSpider? Create an account first, then import the custom indicator.

Source code

This indicator had been implemented by TrendSpider in JavaScript on TrendSpider. Check out the developer documentation to learn more about JS on TrendSpider.

// This script had been cloned from "P/E Ratio" at 16 Jan 2024, 12:03
describe_indicator('P/E Ratio', 'lower');

const earnings = await request.earnings(constants.ticker);

if (!Array.isArray(earnings)) {
	return;
}

const pastEarnings = earnings.filter(record => !record.isFuture);

const epsMathType = input('P/E Type', 'Trailing', ['Qtr', 'Trailing']);
let resultingLine = null;

const epsLanded = land_points_onto_series(
	pastEarnings.map(record => record.timestamp),
	pastEarnings.map(record => record.eps),
	time,
	'ge'
);

if (epsMathType == 'Qtr') {	

	const epsInterpolated = interpolate_sparse_series(epsLanded, 'constant');
	resultingLine = for_every(close, epsInterpolated, (c, eps) => c / eps); 

}
else if (epsMathType == 'Trailing') {	
	resultingLine = close.map((c, index) => {
		const last4QtrEPS = epsLanded.
			slice(0, index).
			filter(Boolean).
			slice(-4).
			reduce((result, value) => result + value, 0);
			
		return c / last4QtrEPS;
	});

}
else {
	throw Error('unknown pe type requested');
}

paint(resultingLine, { name: 'PE Ratio', color: 'black' });