diff --git a/strategies/advances-and-declines/README.md b/strategies/advances-and-declines/README.md
index 0b2e372..210cc25 100644
--- a/strategies/advances-and-declines/README.md
+++ b/strategies/advances-and-declines/README.md
@@ -6,7 +6,7 @@ As with most of the strategies from this book, they are meant to illustrate cert
 
 Advances refers to the number of stocks going up in the index (e.g., S&P 500) whereas Declines are the stocks going down.
 
-Unlike the book, I did not find there to be a significant difference between trades taken at extreme Advances / Declines values.
+Unlike the book, I did not find there to be a significant difference between trades taken at either extreme of Advances / Declines.
 
 ## Rules