Midpoint/half-back of Session

What is the Midpoint/half-back of a Session?

The session midpoint, called half-back in futures floor slang, is the halfway point of a session's range: the session high plus the session low, divided by two. It is a live level that shifts with every new session high or low, and it splits the session's auction into halves. Price holding above half-back is read as buyers keeping control of the range; price trading below it is read as handing the lower half to sellers.

Because it needs nothing but the high and low, the midpoint is drawn per session (Asia, London, New York) and often carried into later trading sessions as a reference. The same 50% logic appears elsewhere: it is the equilibrium of a range in premium and discount frameworks, and it is the price-only cousin of session VWAP, which weights by volume instead of treating the range as symmetric.

How traders use it

• As an intraday bias line: acceptance above the session midpoint favors rotations toward the session high, while losing it opens rotation into the lower half; it is a reference, not a wall, and trend days can slice through it without pause.
• As a pullback location: on directional days, retracements to half-back are a classic spot to look for responsive buyers or sellers, usually with confirmation rather than blind fills.
• As a carried-forward level: the midpoint of a completed session (the Asia mid is a common example) is watched in following sessions for reactions, alongside that session's high and low.