Track intraday and
weekly rolling contract statistics and compare it to the prior week (such as volatility, risk reversal prices, open interest, put / call ratios, and more).
«In order to protect the interests of customers, after a careful discussion, OKEx will
roll back
weekly,
weekly, and quarterly
contract data for all currencies,» the company said in its statement, adding that the rollback was scheduled to occur at 3:30 pm HKT on Friday.