diff --git a/src/common/models.ts b/src/common/models.ts
index 2d1ed8586..9c5b34f74 100644
--- a/src/common/models.ts
+++ b/src/common/models.ts
@@ -33,7 +33,7 @@ export class GatewayMarketTrade implements ITimestamped {
 export function marketSideEquals(t: MarketSide, other: MarketSide, tol?: number) {
     tol = tol || 1e-4;
     if (other == null) return false;
-    return Math.abs(t.price - other.price) > tol && Math.abs(t.size - other.size) > tol;
+    return Math.abs(t.price - other.price) < tol && Math.abs(t.size - other.size) < tol;
 }
 
 export class Market implements ITimestamped {
@@ -352,4 +352,4 @@ export class TargetBasePositionValue {
 
 export class CancelAllOrdersRequest {
     constructor() {}
-}
\ No newline at end of file
+}