24-hour customer service Get support for technical matters and account queries whenever markets are open. Relationship managers and sales traders Active traders benefit from a dedicated point of contact and access to our world-class trading … Patterns in the 24 hour trading cycle | The Alpha Interface Dec 10, 2013 · Patterns in the 24 hour trading cycle. Posted on December 10, 2013 by Jeff@AlphaInterface.com. Similarly, selling these stocks at the open, rather than later in the day, can lead to major improvements in performance. For example, a mean trading day reversal of 45 basis points (i.e., 0.45%) per day accumulates to 112.5% per annum.