Note for Futures Contracts: Barchart's charting application commonly uses the * image on futures contracts like a shortcut to specify the thirty day period. Heikin-Ashi, which suggests "average bar" in Japanese, is a definite style of Candlestick chart. They use common ranges to calculate the factors from the Candle, https://financefeeds.com/global-fx-market-summary-fed-interest-rate-policy-tariff-impacts-and-trade-tensions-7-may-2025/