why did meta reach its all time low on september 2012

The lowest closing price for Facebook (META) in September 2012 was $17.63, on September 4, 2012. It was up 19.8% for the month. The latest price is $737.

DATE OPEN HIGH LOW CLOSE VOLUME
September 28 2012
$20.46
$21.83
$20.39
$21.54
65,485,922
September 27 2012
$20.88
$20.89
$20.05
$20.21
30,215,820
September 26 2012
$20.04
$20.67
$19.69
$20.51
38,271,879
September 25 2012
$21.08
$21.09
$20.11
$20.17
46,291,660
September 24 2012
$21.66
$21.86
$20.25
$20.68
79,105,117
September 21 2012
$22.84
$23.11
$22.48
$22.74
51,218,102
September 20 2012
$22.89
$23.11
$22.42
$22.47
57,248,660
September 19 2012
$21.87
$23.24
$21.65
$23.16
78,782,781
September 18 2012
$21.48
$21.86
$21.25
$21.75
36,760,449
September 17 2012
$22.55
$22.63
$21.38
$21.40
50,666,449
September 14 2012
$21.01
$21.96
$20.79
$21.88
72,819,641
September 13 2012
$20.84
$21.36
$20.50
$20.60
65,041,520
September 12 2012
$20.65
$21.04
$20.17
$20.82
121,584,000
September 11 2012
$18.82
$19.47
$18.75
$19.32
50,508,129
September 10 2012
$18.96
$19.10
$18.45
$18.71
24,797,641
September 07 2012
$19.00
$19.31
$18.68
$18.88
36,371,699
September 06 2012
$18.64
$19.16
$18.62
$18.86
46,066,352
September 05 2012
$18.17
$18.65
$18.08
$18.48
60,781,719
September 04 2012
$17.98
$18.17
$17.45
$17.63
46,622,352
Daily pricing data for Facebook dates back to 5/18/2012, and may be incomplete.