hey chan.... that's an interesting question.... patrick, doc, pyradius or one of the other equis guys would know ... 9.1 pro has the true intraday capability... not sure about 9.1 itself.... i say true, because in a clinical sense you should be able to create untrue intraday charts in any eod version also.... they will be un-expected by metastock so the time frames will be off or at least the way to reflect them escapes me.... all indicators and experts will still work on them properly.... by un-expected i mean , with 9.1 pro i can create 223 minute charts.... that is something meta is not expecting so it does not know how to handle the correct time frames but the charts work perfect otherwise.... i use 4 hour charts at times, meta is not expecting that time frame .... everything else works okay, we just must adjust our time frame thinking.... so the long answer to your question is , eod versions can plot intraday which work fine.... just expect the time frames to reflected improperly....h