import pandas as pd
import numpy as np

%matplotlib inline
%pylab inline
import matplotlib.pyplot as plt[enter image description here][1]
pylab.rcParams['figure.figsize'] = (15, 9)
df["msft"].plot(grid = True)

date  msft  nok  aapl  ibm  amzn
1  2018-01-01 09:00:00   112    1   143  130  1298
2  2018-01-01 10:00:00   109   10   185  137  1647
3  2018-01-01 11:00:00    98   11   146  105  1331
4  2018-01-01 12:00:00    83    3   214  131  1355