The opening range is the high and low of the first 30 minutes after 09:30 ET.
Price inside the range is noise. A break and hold above ORH is the long
trigger with ORL as invalidation; below ORL is the short trigger with ORH as
invalidation. On event days (CPI, earnings) the first hour is where most traders
lose money guessing — the range gives you a level instead of a guess.
Notes
Data from public Yahoo Finance endpoints, delayed up to 15 minutes. Levels
are computed from 5-minute bars. Educational tool — not investment advice, and
not a recommendation to buy or sell any security.