A very simple indicator that shows how many times a currency fits into Bitcoin. In other words, the higher the value, the weaker the currency against Bitcoin.
You can easily see that since the beginning of 2019 Stellar Lumen (XLM) lost half of its BTC-value while the USD-value was constant.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.