When the leaders set their high of day

Time (ET) of each leader’s highest 1-minute high from 04:00 to the extended close, grouped by part of the session.

Pre-market04:00–09:304 of 10
First 30 minutes09:30–10:003 of 10
Morning10:00–12:002 of 10
Afternoon12:00–16:001 of 10
After hours16:00–20:000 of 10

The Gapper HOD Timeline for this session loads here.

High of day per leader on Sep 17, 2026, in rank order
Rank	Symbol	Open	HOD	HOD time (ET)	Part of session	HOD vs open
1	AEMD	8.48	14.00	06:43	Pre-market	+65.09%
2	DAIC	4.12	7.15	09:51	First 30 minutes	+73.53%
3	TURB	1.55	3.96	08:33	Pre-market	+155.48%
4	LSTA	2.50	2.56	09:55	First 30 minutes	+2.40%
5	DTSS	0.9698	2.29	11:25	Morning	+136.13%
6	SDST	0.26	0.4331	08:04	Pre-market	+66.58%
7	KXIN	1.69	2.81	10:34	Morning	+66.27%
8	AEHL	12.22	16.79	14:20	Afternoon	+37.40%
9	SURG	0.1898	0.2257	09:38	First 30 minutes	+18.91%
10	GNRC	229.50	236.86	05:25	Pre-market	+3.21%

Retrospective data built after the session from stored records, with links to the original sources. Not real-time, not investment advice and not a recommendation to buy or sell any security.