$INDU overnight activity?

Could someone clear something up for me? I use Interactive Brokers for my data feed and ticker NYSE:$INDU to follow the Dow.

I’ve noticed that $INDU gets premarket / overnight activity and I’m not sure why. I thought $INDU was the symbol for the 30 Dow companies. They’re not traded until the NYSE pre-market open, right?

Looking at a chart, I see that overnight $INDU moved down and back up nearly 40 points (11220 - 11181) from 2:30 - 8:30 AM EST. Why the movement?

Thanks

(pic of $INDU chart attached)

 

I knew the NYSE was in talks about expanding hours, but when did they start trading all night?

Please post the chart.

 

Maybe IB do they own calculation of $INDU (DOW-30).

 

Chart pic attached

 

it might be that the symbol you look at is auto tracking the movement of the futures over night
( i.e. YM )

 

I may be wrong, But I believe some of the dow componets also trade on the European markets.... and the dow is tracked/updated during the European markets....

 

All of these "Guesses" make sense. The true measure of the Dow Jones Industrial Average, IMHO is from 9:30AM ET - 4:00PMET.

After hours and futures are really not a true barometer of the $INDU.

I do realize the OP's question remains unanswered, perhaps our resident IB expert can solve the mystery!

 

Yes, we need an IB data expert to explain it, I suppose. It's not YM or futures related, though... doesn't compare at all to YM's overnight activity.

Yes, the correct time to use $INDU is regular market hours. But what gives with that 40 point dip?

I think the European market is the closest thing to makings sense.

I've sent an email to NYSE asking for info. The IB customer service would mostly likely be a lame duck, based on prior experience.

 

It will be due to dow stocks trading on european exchanges. For instance, if you take the news about WMT droping the german stores. If you read press releases about that you can find where it says WMT was up in european trading. I have seen this same statement about a bunch of dow stocks before, so my guess is they are trading during the european market hours and the $indu is being recalculated based on these price changes.