The 90-minute window where most setups print
Most traders get trapped because they look for a setup all session. The cleaner read is to understand when the session is likely to move from accumulation into manipulation.
The window gives the session a job
Quarterly Theory breaks time into phases. When you know which phase price is likely in, you stop treating every candle as a fresh decision.
Q2 is where traders usually get baited
Q2 often creates the move that looks obvious, takes early liquidity, and convinces traders to chase before the real displacement appears.
The setup needs displacement
The 90-minute window is not an automatic entry. Wait for the manipulation to finish, then look for a strong shift and a fair value gap to frame risk.
Less screen time creates cleaner execution
If nothing forms in the right window, the best trade is usually no trade. The window protects you from forcing a setup after the session has already shown its hand.
How to use it
Mark the session open, split the active period into quarters, and watch where price attacks liquidity during Q2.
If price sweeps and then displaces back through internal structure, you have a cleaner reason to build a trade plan. If it only drifts, leave it alone.