fxp

FXP is an acronym used in several contexts. In computing and digital signal processing, FXP stands for fixed-point representation. Fixed-point numbers use integer arithmetic with a fixed scaling factor to represent fractional values, in contrast to floating-point formats. They are common in embedded systems and real-time DSP where hardware support or deterministic timing matters. FXP formats are often described by Qm.n notation, where m is the number of integer bits and n the fractional bits; operations may require careful scaling and rounding to manage overflow and precision. Pros include predictable timing and lower resource usage; cons include limited dynamic range and precision loss compared with floating-point. Conversions between FXP and floating-point can be performed via scaling and rounding.

In finance, FXP is the ticker symbol for the ProShares UltraShort FTSE China 50 ETF. FXP seeks twice the inverse daily performance of the FTSE China 50 Index. As an inverse leveraged ETF, its value is reset daily, which means long-term results can diverge significantly from the inverse of the index's longer-term performance due to compounding and volatility. It is sometimes used by traders as a hedging instrument or for speculative bets on declines in the Chinese equity market, but carries higher risk and costs, including expense ratios and tracking differences.