We have noticed that there are specific 1-minute IBM.N bars that are incomplete when requesting historical summaries. Here is the request...
var def = Summaries
.Definition()
.Universe("IBM.N")
.Interval(Summaries.Interval.PT1M)
.TimestampLabel(Summaries.TimestampLabel.startPeriod)
.Fields("OPEN_PRC", "HIGH_1", "LOW_1", "TRDPRC_1", "ACVOL_UNS", "NUM_MOVES")
.Sessions(HistoricalPricing.Sessions.normal)
.Count(1250)
.Start("2024-04-19T17:37:00Z")
.End("2024-04-19T22:00:00Z")
.GetData();
The following bars, stamped in UTC, are incomplete...
2024-04-19T19:08:00
2024-04-19T18:54:00
2024-04-19T18:53:00
2024-04-19T18:13:00
2024-04-19T17:38:00
Screen shots attached.