The USD-CHF suffered a large loss earlier today and experienced oversold conditions. The pessimistic valuations were corrected by buying pressure in the last hour session and breached the -2 standard deviation. The price has since moved back into the -2 standard deviation range and the sessions high has been at the -1 standard deviation.
Buy order once price closes above the -1 standard deviation, the RSI is also bullish at the 1 hour timeframe