# import necessary libraries
import pandas as pd

# define your series
my_series = pd.Series([1,10,-6,1,0,-9,2,6,5])

# use idxmax() method to get index
max_val_index = my_series.idxmax()

# get value using index
max_val = my_series[max_val_index]

# print result
print(max_val)