diff --git a/src/utils/utils.ts b/src/utils/utils.ts
index 8faf676..d8afa0a 100644
--- a/src/utils/utils.ts
+++ b/src/utils/utils.ts
@@ -1440,12 +1440,17 @@ export const calculateDynamicSlippage = (
 
 	// use halfway to worst price as size adjusted slippage
 	if (startPrice && worstPrice) {
-		const sizeAdjustedSlippage =
+		let sizeAdjustedSlippage =
 			(startPrice.sub(worstPrice).abs().toNumber() /
 				BN.max(startPrice, worstPrice).toNumber() /
 				2) *
 			100;
 
+		if (isMajor) {
+			// add additional size adjusted multiplier for majors
+			sizeAdjustedSlippage = sizeAdjustedSlippage * 1.2;
+		}
+
 		dynamicSlippage = Math.max(dynamicSlippage, sizeAdjustedSlippage);
 	}