diff --git a/quantstats/stats.py b/quantstats/stats.py
index e544f373..28cb7760 100644
--- a/quantstats/stats.py
+++ b/quantstats/stats.py
@@ -93,7 +93,7 @@ def expected_return(returns, aggregate=None, compounded=True, prepare_returns=Tr
     if prepare_returns:
         returns = _utils._prepare_returns(returns)
     returns = _utils.aggregate_returns(returns, aggregate, compounded)
-    return _np.product(1 + returns) ** (1 / len(returns)) - 1
+    return _np.prod(1 + returns) ** (1 / len(returns)) - 1
 
 
 def geometric_mean(retruns, aggregate=None, compounded=True):
@@ -512,7 +512,7 @@ def gain_to_pain_ratio(returns, rf=0, resolution="D"):
     return returns.sum() / downside
 
 
-def cagr(returns, rf=0.0, compounded=True, periods=252):
+def cagr(returns, rf=0.0, compounded=True):
     """
     Calculates the communicative annualized growth return
     (CAGR%) of access returns
@@ -526,7 +526,7 @@ def cagr(returns, rf=0.0, compounded=True, periods=252):
     else:
         total = _np.sum(total)
 
-    years = (returns.index[-1] - returns.index[0]).days / periods
+    years = (returns.index[-1] - returns.index[0]).days / 365
 
     res = abs(total + 1.0) ** (1.0 / years) - 1