The EURX indicator is a powerful VertexFx client-side indicator script that calculates the Euro Index in real-time.
The Euro Index is a powerful macro-economic indicator that presents a composite view of the European currencies. It is calculated from five major European currencies, namely EURUSD, EURGBP, EURCHF, EURJPY and EURSEK (Swedish Krona).
The calculation of the Euro Index is as follows,

34.38805726 x Pow(EURUSD, 0.3155) x Pow(EURJPY, 0.1891) x Pow(EURGBP, 0.3056) x Pow(EURSEK, 0.0785) x Pow(EURCHF, 0.1113)

where Pow(currency, exponent) is the exponent (power) of the currency value.

The main Euro Index labeled EURX is plotted as a thick line. The indicator also plots two moving averages of the EURX, namely the short term and long term moving average. The periods of these averages can be configured and changed by modifying the SMA_PERIOD_SHORT and SMA_PERIOD_LONG respectively. The EURX depicts the strength of the Euro against the five major currencies, namely the US dollar, the Japanese yen, the Swiss franc, the British pound and the Swedish kroner. A rising EURX index implies that the Euro is gaining strength against other currencies, and a falling EURX index implies the Euro is weakening against the other currencies. Therefore, we buy when the EURX is rising and sell when EURX is falling. The short term moving average provides a reference as to when to buy or sell the Euro based on the EURX indicator.

BUY : Enter a BUY trade in any of the Euro denonimated currencies, namely EURUSD, EURGBP, EURCHF, EURJPY or EURSEK when the EURX indicator crosses above its short term moving average.

SELL : Enter a SELL trade in any of the Euro denominated currencies, namely EURUSD, EURGBP, EURCHF, EURJPY or EURSEK when the EURX indicator crosses below its short term moving average.