diff --git a/macd_series.go b/macd_series.go
index 4ce7bc9..396b0df 100644
--- a/macd_series.go
+++ b/macd_series.go
@@ -256,7 +256,7 @@ func (macdl MACDLineSeries) GetValue(index int) (x float64, y float64) {
 	_, emav1 := ema1.GetValue(index)
 	_, emav2 := ema2.GetValue(index)
 
-	y = emav1 - emav2
+	y = emav2 - emav1
 	return
 }
 
diff --git a/macd_series_test.go b/macd_series_test.go
index ac7005f..f6f6a31 100644
--- a/macd_series_test.go
+++ b/macd_series_test.go
@@ -10,55 +10,55 @@ import (
 var (
 	macdExpected = []float64{
 		0,
-		-0.06381766382,
-		-0.1641441222,
-		-0.2817201894,
-		-0.4033023481,
-		-0.3924673744,
-		-0.2983093823,
-		-0.1561821464,
-		0.008916708129,
-		0.05210332292,
-		0.01649503993,
-		-0.06667130899,
-		-0.1751344574,
-		-0.1657328378,
-		-0.08257097469,
-		0.04265109369,
-		0.1875741257,
-		0.2091853882,
-		0.1518975486,
-		0.04781419838,
-		-0.08025242841,
-		-0.08881960494,
-		-0.02183529775,
-		0.08904155476,
-		0.2214141128,
-		0.2321805992,
-		0.1656331722,
-		0.05373789678,
-		-0.08083727586,
-		-0.09475354363,
-		-0.03209767112,
-		0.07534076818,
-		0.2050442354,
-		0.2138010557,
-		0.1458045181,
-		0.03293263556,
-		-0.1022243734,
-		-0.1163957964,
-		-0.05372761902,
-		0.05393941791,
-		0.1840438454,
-		0.1933365048,
-		0.1259788988,
-		0.01382225715,
-		-0.1205656194,
-		-0.1339326478,
-		-0.07044017167,
-		0.03805851969,
-		0.1689918111,
-		0.1791024416,
+		0.06381766382,
+		0.1641441222,
+		0.2817201894,
+		0.4033023481,
+		0.3924673744,
+		0.2983093823,
+		0.1561821464,
+		-0.008916708129,
+		-0.05210332292,
+		-0.01649503993,
+		0.06667130899,
+		0.1751344574,
+		0.1657328378,
+		0.08257097469,
+		-0.04265109369,
+		-0.1875741257,
+		-0.2091853882,
+		-0.1518975486,
+		-0.04781419838,
+		0.08025242841,
+		0.08881960494,
+		0.02183529775,
+		-0.08904155476,
+		-0.2214141128,
+		-0.2321805992,
+		-0.1656331722,
+		-0.05373789678,
+		0.08083727586,
+		0.09475354363,
+		0.03209767112,
+		-0.07534076818,
+		-0.2050442354,
+		-0.2138010557,
+		-0.1458045181,
+		-0.03293263556,
+		0.1022243734,
+		0.1163957964,
+		0.05372761902,
+		-0.05393941791,
+		-0.1840438454,
+		-0.1933365048,
+		-0.1259788988,
+		-0.01382225715,
+		0.1205656194,
+		0.1339326478,
+		0.07044017167,
+		-0.03805851969,
+		-0.1689918111,
+		-0.1791024416,
 	}
 )