Trade Strength
The ratio of buyer-initiated to seller-initiated volume, ×100 — above 100, buyers are paying up.
What it means
Trade strength compresses the buyer/seller split into one index: buyer-initiated volume divided by seller-initiated volume, times 100. 100 means balance; 150 means buyers took one and a half times the volume sellers did; below 100 the sellers are pressing.
It is a staple indicator in Korean markets (체결강도) that translates directly to US tape reading — TraderWe computes it from each trade's aggressor side. For stocks it accumulates from the session open (the market-wide convention); for crypto, which has no session open, it runs on a rolling 30-minute window instead. The value is capped at 500.
Why traders care
- One number for "who is in control right now" — easy to threshold in a rule.
- Divergence (price up, strength falling) flags moves running out of buyers.
In a TraderWe strategy
# Buy strategy (entry editor)
if Strength > 130 and ChangePct > 2:
Buy()
# Sell strategy (exit editor — a separate script)
if Strength < 90:
Sell()Educational content, not investment advice. Engine details describe how TraderWe computes this value; other platforms may define it differently.