We built the largest dataset of high-frequency exchange rates so far. Our sample covers the spot prices and order flows of 19 currency pairs over the last 15 years measured on Reuters and EBS at the thirty-second frequency. We show that common, price-based factors describe exchange rate dynamics...

A contingent claims valuation model which allows to highlight the implications of program trading in spot markets for the pricing of European-style foreign currency options and for the volatility strike structure implicit in these contracts is devoloped. The curvature of the volatility strike...