Using a dataset on local banks' daily FX transaction volume segregated into counterparty and transaction types, this article investigates the relationship between trading volume and intraday realized volatility for the US dollar/Turkish lira parity (USDTRY), one of the most traded emerging market currencies against US dollar. We question whether type of counterparty and transaction affects intraday volume-volatility relationship across various trading sessions around the world. We reveal that only the spot transactions of domestic customers have positive contemporaneous relation with realized volatility and this significance is valid only in global trading sessions that mostly overlap with the local trading hours. Furthermore, we utilize a metric for the belief dispersion on the level of future exchange rate via currency options and find that the dispersion significantly strengthens the volume-volatility nexus, confirming the Dispersion of Beliefs Hypothesis.

We investigate the dynamics of return and liquidity (co)jumps for three of the most traded emerging market currencies vis-à-vis US dollar. We find that an increase in the average bid-ask spread significantly reduces the duration between consecutive return jumps, while liquidity and volatility only play a partial role on the duration between consecutive liquidity jumps and return-liquidity cojumps. There is also evidence of vicious return-liquidity spirals in views of the positive contemporaneous impact of liquidity jumps on volatility and return jumps on the bid-ask spread. Moreover, scheduled macroeconomic news and central bank announcements increase the likelihood of both return and liquidity (co)jumps. Finally, jump adjusted high frequency FX trading strategies are shown to have superior performance over the buy-and-hold strategy.

No abstract