On: Today the Dow dropped 1000 points in about ten minutes.

[fauigerzigerk]

Today's chart does show a spike down to $50 or so, maybe even lower. Go to finance.google.com and look at the intraday chart. It also shows a volume spike, but curiously that's later.

[Edit] Actually the stock was down at $39.37 from $61. On normal days PG barely moves at all.

[mbrubeck → fauigerzigerk]

There's undoubtedly a price spike. But to confirm or deny the s/million/billion/ explanation we are looking for a volume spike at the same time.

[fauigerzigerk → mbrubeck]

Don't forget all the derivatives linked to the price. You don't see that volume or the losses caused by that.

[rdtsc → fauigerzigerk]

It depend on the resolution of the chart. If the resolution is minute-based, then it could have hit $0 then come back up to $39 within a minute. You wouldn't know. You'd have to have a special high-resolution stock feed.

[fauigerzigerk → rdtsc]

Yes, but I would expect that the low and high for the day shown on the finance websites does show everything down to tick level. Not real time of course.