Quote from dkm:
For some reaon I am not getting volume displayed. any ideas? If I scroll back, the vol is there earlier..
Eureka. The reason that I was not getting a vol display was because I was using esignal as the data feed. They do not appear to supply raw vol data. Switching over to IB cured the problem.
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. Even after the smoke has cleared volume is not crystal clear to me yet. The period starting 12:15 to 14:00 seems even in retrospect to be unreadable.