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To: Skeeter Bug who wrote (96846)	4/20/2001 1:45:25 PM
From: pater tenebrarum	Read Replies (2) \| Respond to of 436258

i'm not sure...never even thought about it. thanks for bringing it up, this is certainly worth investigating...not only w.r.t Yahoo's practice but also that of other chart services. i believe however that volume is generally NOT split adjusted. this problem with adjusting for splits is encountered when looking at short interest too. the headline "short interest at a new record" is usually meaningless because of that.

To: Skeeter Bug who wrote (96846)	4/20/2001 4:38:48 PM
From: Craig Richards	Read Replies (2) \| Respond to of 436258

Skeeter, I checked into this - I requested historical quote info for EMC for July, 99 - it gave me a chart of open, high, low, close, volume and adj close. The adj close value was adjusted for splits, but the volume was not adjusted. For July 12,99, EMC closed at 58.50, 29.25 adjusted for splits, with un-adjusted volume of 3,365,700. Maybe you can check this against your data to determine if the volume information you have is split adjusted or not. I don't know of any data providers that split adjust the volume data.