• VERTEX PHARMACEUTICALS INC Average Monthly Returns

Some investors consider seasonal performance when purchasing or selling stocks. This chart illustrates the average monthly return for the past 5 years. Users often also consider the number of times a stock increases or decreases for any given month. Mouse-over the chart to view 5 years of history for each month.

  • Seasonality Performance Chart: VRTX

  • Seasonal Performance Data: VRTX

    Returns Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Avg.

    Returns %    		 1.87 1.89 -1.62 4.36 12.60 8.94 1.46 4.16 6.42 2.54 -0.66 -3.97
    #Times VRTX Stock Price Increased 42 33 35 42 45 41 36 44 43 46 42 34
    #Times VRTX Stock Price Unchanged 1 1 4 0 2 1 0 1 1 0 1 0
    #Times VRTX Stock Price Decreased 37 42 48 40 39 44 47 45 37 41 41 49
    2008 % -12.34 -13.72 36.35 6.56 12.19 16.91 3.08 -22.13 — — — —
    2007 % -5.52 -13.23 -8.57 9.63 -2.72 -4.47 13.10 20.62 -1.40 -15.79 -21.48 -8.50
    2006 % 29.09 21.05 -15.37 -0.59 -5.13 2.29 -5.01 2.77 -2.31 20.65 9.11 -15.52
    2005 % -3.77 13.47 -18.88 1.82 46.07 21.05 -5.33 15.36 21.47 1.70 12.10 8.59
    2004 % — — — — — — — — 7.91 3.62 -2.38 -0.46