Early signs of a share spike
Results seasons · Third Friday · Surprise news
Plenty of share spikes are announced weeks ahead; you just have to look at the calendar. Earnings are the obvious case. US companies report in waves starting mid-January, mid-April, mid-July and mid-October, and European firms keep a similar rhythm. The radar knows those dates and watches the name before the numbers land, so the reaction reaches you almost at once.
Third Fridays matter too. In March, June, September and December, options and futures expire on that day and the big indices are rebalanced. Index funds then have to buy or sell at the close, whatever it costs. Smaller things pull in a crowd as well: a dividend date, a buyback, a product launch, an analyst cutting a popular name.
And then there are surprises. A lawsuit. A takeover bid. A chief executive gone overnight. No calendar has those, but the first orders after the headline still leave a trace. The news time and the turnover curve sit on one chart, so you can see whether buying began before the announcement or after it.



