That assertion is 100% incorrect. There was not a single trading day in the month of November 2017 where the closing price was lower than yesterdays close or todays current price. Numbers do not lie. You must be looking at the wrong chart.
Closing Price on Nov. 15th was 18.26
?Nov? ?30? 18.29
?Nov? ?29?, ?2017 18.45 18.54 18.31 18.48 18.48 55,159,500
?Nov? ?28?, ?2017 18.17 18.44 18.06 18.41 18.41 56,115,400
?Nov? ?27?, ?2017 18.34 18.50 18.09 18.12 18.12 78,852,400
?Nov? ?24?, ?2017 18.38 18.38 18.15 18.19 18.19 24,897,700
?Nov? ?22?, ?2017 18.15 18.25 17.84 18.15 18.15 54,846,800
?Nov? ?21?, ?2017 17.95 18.07 17.70 17.83 17.83 77,918,900
?Nov? ?20?, ?2017 17.95 18.13 17.83 17.98 17.98 63,934,100
?Nov? ?17?, ?2017 18.34 18.47 18.21 18.21 18.21 60,457,200
?Nov? ?16?, ?2017 18.48 18.48 18.05 18.25 18.25 89,376,600
?Nov? ?15?, ?2017 17.51 18.38 17.50 18.26 18.26 144,368,000
?Nov? ?14?, ?2017 18.79 18.88 17.46 17.90 17.90 312,556,800
?Nov? ?13?, ?2017 20.26 20.75 18.75 19.02 19.02 261,557,400
?Nov? ?10?, ?2017 19.98 20.68 19.90 20.49 20.49 100,732,900
?Nov? ?09?, ?2017 20.04 20.07 19.85 19.99 19.99 50,850,500
?Nov? ?08?, ?2017 20.21 20.32 20.07 20.12 20.12 39,682,500
?Nov? ?07?, ?2017 20.17 20.25 20.12 20.21 20.21 41,661,200
?Nov? ?06?, ?2017 20.52 20.53 20.08 20.13 20.13 60,679,500
?Nov? ?03?, ?2017 19.92 20.33 19.86 20.14 20.14 67,861,000
?Nov? ?02?, ?2017 20.05 20.08 19.63 19.94 19.94 81,531,700
?Nov? ?01?, ?2017 20.07 20.52 19.96 20.02 20.02 91,714,400