Buy and hold

plt.xlabel('Date')

plt.ylabel('US$')

plt.plot(dff.index, dff['Price'], color="red")

plt.plot(dff.index, dff['Predictions'], color="b", alpha=0.1)

plt.fill_between(dff.index, dff['Predictions']*1.03, dff['Predictions']*0.97, color='b', alpha=0.3)

plt.legend(shadow=True, fontsize='large')