Dear statalist, i am trying to plot the stock return data for a panel data of some companies, however, each time i plot this, but each time i plot this using xtline command, i get an vertical line which does not show any dynamics in the variable movement. however, if i plot the closing price of the stock, the plot looks good.

Code:
* Example generated by -dataex-. For more info, type help dataex
clear
input float(Date ret4) str6 ticker long bcal_date
22280          . "ABF.L"  0
22284 -1.6926985 "ABF.L"  1
22285 -1.0840229 "ABF.L"  2
22286   2.688337 "ABF.L"  3
22287 -1.4247924 "ABF.L"  4
22288 -.49449205 "ABF.L"  5
22291  .04506954 "ABF.L"  6
22292    .045015 "ABF.L"  7
22293          0 "ABF.L"  8
22294   1.519262 "ABF.L"  9
22295 -.26643598 "ABF.L" 10
22298   .9294199 "ABF.L" 11
22299  -.1763671 "ABF.L" 12
22300  1.6630546 "ABF.L" 13
22301   .6489297 "ABF.L" 14
22302  -2.842971 "ABF.L" 15
22305  -2.424892 "ABF.L" 16
22306  .09086218 "ABF.L" 17
22307  -.7750133 "ABF.L" 18
22308  .18288766 "ABF.L" 19
22309  -3.344475 "ABF.L" 20
22312   3.891174 "ABF.L" 21
22313  1.6670744 "ABF.L" 22
22314   .4013417 "ABF.L" 23
22315   .8420265 "ABF.L" 24
22316  1.0535668 "ABF.L" 25
22319 -1.0977212 "ABF.L" 26
22320   .3085941 "ABF.L" 27
22321 -1.4184653 "ABF.L" 28
22322  -.4474456 "ABF.L" 29
22323 -.13461708 "ABF.L" 30
22326   5.290861 "ABF.L" 31
22327 -1.7615863 "ABF.L" 32
22328   .0433178 "ABF.L" 33
22329   .5185954 "ABF.L" 34
22330  2.1744623 "ABF.L" 35
22333   1.506937 "ABF.L" 36
22334  1.9338083 "ABF.L" 37
22335  -.6951607 "ABF.L" 38
22336  -.6587002 "ABF.L" 39
22337  -2.213491 "ABF.L" 40
22340  1.2172174 "ABF.L" 41
22341 -1.2594588 "ABF.L" 42
22342   .6736876 "ABF.L" 43
22343 -.04197542 "ABF.L" 44
22344 -1.0975165 "ABF.L" 45
22347  .25434014 "ABF.L" 46
22348  2.0947537 "ABF.L" 47
22349  -.7072873 "ABF.L" 48
22350  -.5023145 "ABF.L" 49
22351   1.664616 "ABF.L" 50
22354  1.3527613 "ABF.L" 51
22355   1.535391 "ABF.L" 52
22356 -1.3320118 "ABF.L" 53
22357 -1.8454542 "ABF.L" 54
22358 -.08282112 "ABF.L" 55
22361    -.74844 "ABF.L" 56
22362 -2.3649566 "ABF.L" 57
22363   -.428283 "ABF.L" 58
22364     .12867 "ABF.L" 59
22365  2.5810676 "ABF.L" 60
22368  -.7126455 "ABF.L" 61
22369  1.8341514 "ABF.L" 62
22370 -.24813415 "ABF.L" 63
22371  1.4796733 "ABF.L" 64
22376   .4884022 "ABF.L" 65
22377   .7684655 "ABF.L" 66
22378   .3217926 "ABF.L" 67
22379  -.2412499 "ABF.L" 68
22382  -.8490082 "ABF.L" 69
22383 -.20321368 "ABF.L" 70
22384  -.6530541 "ABF.L" 71
22385   .6937422 "ABF.L" 72
22386  -1.268688 "ABF.L" 73
22389   1.309339 "ABF.L" 74
22390  -6.118375 "ABF.L" 75
22391 -.25963387 "ABF.L" 76
22392  .21640652 "ABF.L" 77
22393  -.8248349 "ABF.L" 78
22396   .9976213 "ABF.L" 79
22397  -.6060578 "ABF.L" 80
22398 -.17382672 "ABF.L" 81
22399   .9092869 "ABF.L" 82
22400  -.5185954 "ABF.L" 83
22404  -.7829376 "ABF.L" 84
22405   .8695608 "ABF.L" 85
22406  1.2903584 "ABF.L" 86
22407   .4264242 "ABF.L" 87
22410   .8052581 "ABF.L" 88
22411 -3.3916016 "ABF.L" 89
22412  -.4376436 "ABF.L" 90
22413 -1.8592914 "ABF.L" 91
22414  2.7326605 "ABF.L" 92
22417 -1.0050433 "ABF.L" 93
22418     .43823 "ABF.L" 94
22419 -1.0549673 "ABF.L" 95
22420   2.616812 "ABF.L" 96
22421 -.56119645 "ABF.L" 97
22424   .8620755 "ABF.L" 98
22425 -1.7316363 "ABF.L" 99
end
format %td Date
format %tbcalendar bcal_date