Recent content by giovanni1

Thank you for your interesting reply. A possible example is July 12 WBMD (Google finance) : due to improved earnings outlook the price increased from 27.0 ( july 11 4pm) to 31.0 (july 12 8 am, + 14.5%) to 32.3 ( 9.28 am, + 19.6%) and 34.5 four minutes later. In this case would you have...

Premarket data are useful indicators. When the price of a stock increases in premarket with a good volume (for ex. 5% the average volume) as a consequence of a positive news (earnings higher than expected, a buy advice by an important analyst etc.) often but not always the price increases...