Shopify tightening range holding uptrend, preparing for breakout

SHOP.TO is tightening up on the daily as price forms an equilibrium. Decreasing bull volume on the daily tells me we're likely to set a lower high relative to 199.50 before coming back to test the uptrend that's held since Dec 2017, and set a higher low relative to 172.95. Volume within this pattern will be key clue about how the pattern will break