PERMNO date PRC ASKHI BIDLO RET vwretd ewretd sprtrn 12490 19680131 594.50000 623.00000 588.75000 -0.051834 -0.036330 0.023902 -0.043848 12490 19680229 580.00000 599.50000 571.00000 -0.022204 -0.033624 -0.056118 -0.031223 12490 19680329 612.50000 612.50000 562.00000 0.056034 0.005116 -0.011218 0.009400 12490 19680430 677.50000 677.50000 630.00000 0.106122 0.094148 0.143031 0.081929 12490 19680531 357.00000 696.00000 329.50000 0.055793 0.027041 0.091309 0.011169 12490 19680628 353.75000 375.00000 346.50000 -0.009104 0.011527 0.016225 0.009120 12490 19680730 338.75000 365.00000 331.50000 -0.042403 -0.022024 -0.026210 -0.018478 12490 19680830 335.00000 345.00000 335.00000 -0.009151 0.018038 0.035918 0.011459 12490 19680930 335.00000 340.50000 331.00000 0.000000 0.044454 0.068808 0.038539 12490 19681031 307.00000 331.00000 307.00000 -0.081642 0.009041 0.006913 0.007208 12490 19681129 333.75000 334.50000 309.00000 0.087134 0.058502 0.071994 0.047964 12490 19681231 315.00000 330.00000 313.50000 -0.056180 -0.033873 0.005896 -0.041617 12490 19690131 296.25000 313.75000 296.25000 -0.059524 -0.006711 -0.001688 -0.008184 12490 19690228 293.37500 310.25000 293.37500 -0.007004 -0.053640 -0.085728 -0.047374 12490 19690328 314.00000 314.00000 294.75000 0.070303 0.030506 0.020290 0.034444 12490 19690430 328.00000 328.00000 306.50000 0.044586 0.020526 0.003459 0.021476 12490 19690529 319.00000 334.00000 319.00000 -0.025000 0.005040 0.006262 -0.002218 12490 19690630 337.75000 337.75000 308.00000 0.058777 -0.067387 -0.113404 -0.055577 12490 19690731 324.50000 351.25000 313.00000 -0.039230 -0.065172 -0.095823 -0.060178 12490 19690829 345.00000 350.25000 326.75000 0.066256 0.051490 0.052175 0.040074 12490 19690930 345.25000 358.50000 335.25000 0.000725 -0.022590 -0.024618 -0.025024 12490 19691031 360.50000 364.00000 341.50000 0.044171 0.055638 0.092413 0.044244 12490 19691128 357.00000 367.75000 345.75000 -0.006935 -0.032164 -0.055078 -0.035274 12490 19691231 364.50000 366.50000 351.50000 0.021008 -0.019681 -0.066178 -0.018655 12490 19700130 335.25000 381.50000 335.25000 -0.080247 -0.073254 -0.038830 -0.076472 12490 19700227 340.25000 355.00000 338.50000 0.018494 0.056706 0.040195 0.052693 12490 19700331 338.50000 338.50000 316.75000 -0.005143 -0.004729 -0.023712 0.001453 12490 19700430 298.00000 337.75000 290.25000 -0.119645 -0.105318 -0.161963 -0.090483 12490 19700529 278.00000 296.75000 241.00000 -0.063087 -0.064346 -0.090524 -0.060967 12490 19700630 250.00000 287.00000 250.00000 -0.100719 -0.051075 -0.073904 -0.050033 12490 19700731 252.25000 259.50000 242.50000 0.013800 0.074169 0.059258 0.073295 12490 19700831 266.25000 271.25000 223.00000 0.055500 0.050036 0.061617 0.044459 12490 19700930 291.75000 291.75000 263.87500 0.095775 0.047536 0.126098 0.032998 12490 19701030 294.00000 307.12500 284.50000 0.011825 -0.018208 -0.058604 -0.011400 12490 19701130 307.25000 308.50000 290.50000 0.045068 0.050448 0.003021 0.047447 12490 19701231 317.75000 320.25000 308.00000 0.034174 0.060723 0.081324 0.056766 12490 19710129 325.50000 326.00000 310.00000 0.024390 0.052030 0.136096 0.040477 12490 19710226 336.50000 341.62500 327.25000 0.037788 0.016913 0.047910 0.009074 12490 19710331 357.50000 363.50000 337.25000 0.062407 0.044778 0.056603 0.036796 12490 19710430 357.75000 362.00000 352.00000 0.000699 0.033332 0.027087 0.036288 12490 19710528 327.00000 353.50000 327.00000 -0.082320 -0.036409 -0.049435 -0.041558 12490 19710630 317.00000 328.75000 311.25000 -0.030581 0.003119 -0.017240 0.000703 12490 19710730 291.25000 319.00000 291.25000 -0.081230 -0.040283 -0.053634 -0.041324 12490 19710831 304.00000 318.25000 284.00000 0.048240 0.042511 0.041159 0.036095 12490 19710930 303.75000 310.50000 299.50000 -0.000822 -0.005016 -0.004653 -0.006968 12490 19711029 300.50000 315.12500 297.00000 -0.010700 -0.040682 -0.057468 -0.041794 12490 19711130 305.50000 305.50000 290.50000 0.020965 -0.001262 -0.034150 -0.002547 12490 19711231 336.50000 346.00000 309.50000 0.101473 0.091257 0.117128 0.086179 12490 19720131 368.00000 368.75000 333.00000 0.093611 0.028383 0.103892 0.018121 12490 19720229 368.50000 373.75000 364.75000 0.005027 0.031349 0.041809 0.025303 12490 19720330 382.25000 385.00000 371.50000 0.037313 0.008722 -0.000951 0.005912 12490 19720428 386.00000 397.50000 380.00000 0.009810 0.005505 0.001231 0.004384 12490 19720531 397.75000 404.00000 379.00000 0.033938 0.016375 -0.018121 0.017275 12490 19720630 392.00000 399.75000 387.75000 -0.014456 -0.020896 -0.033775 -0.021821 12490 19720731 400.75000 404.00000 388.00000 0.022321 -0.004254 -0.029488 0.002333 12490 19720831 408.50000 425.50000 404.25000 0.022707 0.035966 0.012252 0.034454 12490 19720929 406.50000 407.00000 395.00000 -0.004896 -0.007671 -0.030725 -0.004861 12490 19721031 385.50000 406.75000 364.50000 -0.051661 0.008676 -0.013767 0.009317 12490 19721130 391.00000 394.00000 371.50000 0.017769 0.049764 0.051096 0.045617 12490 19721229 402.00000 404.25000 385.50000 0.028133 0.011243 -0.019873 0.011828 12490 19730131 435.50000 444.25000 409.00000 0.083333 -0.027455 -0.026133 -0.017111 12490 19730228 431.50000 451.00000 423.00000 -0.005970 -0.044368 -0.072836 -0.037490 12490 19730330 431.50000 448.75000 425.50000 0.000000 -0.007851 -0.028981 -0.001433 12490 19730430 408.00000 434.25000 405.25000 -0.054461 -0.051759 -0.070620 -0.040800 12490 19730531 314.75000 424.00000 314.75000 -0.032261 -0.024503 -0.083582 -0.018884 12490 19730629 317.00000 329.50000 308.75000 0.007149 -0.008647 -0.037745 -0.006575 12490 19730731 314.50000 320.75000 298.50000 -0.007886 0.056954 0.105922 0.037982 12490 19730831 301.00000 313.00000 297.75000 -0.039364 -0.029648 -0.044417 -0.036685 12490 19730928 258.00000 298.25000 251.50000 -0.142857 0.053937 0.072995 0.040096 12490 19731031 280.25000 291.50000 248.50000 0.086240 -0.000427 0.000303 -0.001291 12490 19731130 265.00000 289.75000 263.50000 -0.050419 -0.120703 -0.175252 -0.113861 12490 19731231 246.75000 265.00000 237.50000 -0.068868 0.011425 -0.041764 0.016569 12490 19740131 245.25000 250.75000 227.25000 -0.006079 0.004408 0.132374 -0.010046 12490 19740228 237.87500 241.25000 226.50000 -0.024852 0.002352 0.008623 -0.003624 12490 19740329 235.75000 250.00000 235.75000 -0.008933 -0.023365 0.008379 -0.023280 12490 19740430 227.25000 240.12500 221.62500 -0.036055 -0.045957 -0.055537 -0.039051 12490 19740531 212.50000 230.50000 210.62500 -0.059274 -0.041982 -0.072545 -0.033551 12490 19740628 212.75000 230.25000 212.00000 0.001176 -0.022942 -0.033483 -0.014665 12490 19740731 201.62500 222.25000 197.75000 -0.052291 -0.070879 -0.051915 -0.077791 12490 19740830 192.00000 214.75000 188.75000 -0.040298 -0.087756 -0.085788 -0.090279 12490 19740930 159.00000 183.50000 152.00000 -0.171875 -0.109718 -0.079025 -0.119335 12490 19741031 189.12500 193.00000 156.25000 0.189465 0.165585 0.088877 0.163047 12490 19741129 177.25000 195.87500 168.50000 -0.054858 -0.041047 -0.051395 -0.053180 12490 19741231 168.00000 172.00000 162.25000 -0.052186 -0.027005 -0.080744 -0.020151 12490 19750131 188.25000 188.25000 158.12500 0.120536 0.141600 0.299260 0.122812 12490 19750228 215.50000 220.12500 191.75000 0.152722 0.058411 0.053918 0.059886 12490 19750331 206.62500 220.00000 204.62500 -0.041183 0.030191 0.081497 0.021694 12490 19750430 209.87500 213.75000 197.87500 0.015729 0.046497 0.031093 0.047265 12490 19750530 215.00000 223.50000 207.62500 0.031566 0.055140 0.072876 0.044101 12490 19750630 209.00000 218.50000 203.50000 -0.027907 0.051473 0.071792 0.044323 12490 19750731 190.25000 209.50000 190.25000 -0.089713 -0.060385 -0.008960 -0.067654 12490 19750829 186.25000 189.25000 176.50000 -0.011827 -0.023557 -0.048118 -0.021070 12490 19750930 188.25000 196.00000 178.12500 0.010738 -0.038010 -0.038867 -0.034645 12490 19751031 212.25000 215.37500 183.37500 0.127490 0.055857 0.014720 0.061643 12490 19751128 226.37500 226.37500 211.25000 0.074794 0.031223 0.016796 0.024708 12490 19751231 224.25000 224.25000 214.62500 -0.009387 -0.010998 -0.000599 -0.011508 12490 19760130 257.75000 257.75000 226.50000 0.149387 0.126011 0.190037 0.118306 12490 19760227 255.62500 263.75000 252.50000 -0.001455 0.007314 0.106291 -0.011402 12490 19760331 262.00000 265.75000 256.25000 0.024939 0.026799 0.018109 0.030689 12490 19760430 253.37500 272.00000 253.37500 -0.032920 -0.010389 -0.003810 -0.010995 12490 19760528 256.62500 258.00000 249.00000 0.019734 -0.009369 -0.019680 -0.014364 12490 19760630 276.75000 276.75000 253.00000 0.078422 0.044487 0.026510 0.040926 12490 19760730 272.12500 279.75000 270.50000 -0.016712 -0.006157 0.002236 -0.008055 12490 19760831 273.62500 280.00000 268.87500 0.013780 -0.001435 -0.016673 -0.005124 12490 19760930 281.37500 287.75000 276.37500 0.028323 0.024484 0.016990 0.022641 12490 19761029 271.75000 281.25000 256.50000 -0.034207 -0.020373 -0.022586 -0.022235 12490 19761130 271.00000 274.12500 259.50000 0.005520 0.005364 0.026686 -0.007775 12490 19761231 279.12500 280.50000 265.00000 0.029982 0.061591 0.102410 0.052498 12490 19770131 275.25000 277.50000 268.25000 -0.013883 -0.036337 0.036903 -0.050530 12490 19770228 276.00000 276.50000 267.00000 0.011807 -0.015760 0.004400 -0.021660 12490 19770331 276.50000 285.50000 276.50000 0.001812 -0.009246 0.010654 -0.014025 12490 19770429 258.75000 278.75000 258.00000 -0.064195 0.004952 0.016931 0.000203 12490 19770531 245.50000 262.87500 245.25000 -0.041546 -0.010785 0.002870 -0.023568 12490 19770630 264.00000 267.12500 246.50000 0.075356 0.051367 0.051503 0.045360 12490 19770729 268.12500 274.87500 259.12500 0.015625 -0.012810 0.012362 -0.016222 12490 19770831 268.37500 271.25000 264.00000 0.010256 -0.013352 -0.001233 -0.021042 12490 19770930 261.00000 268.50000 255.75000 -0.027480 0.001574 0.014968 -0.002480 12490 19771031 257.25000 262.50000 255.25000 -0.014368 -0.039280 -0.023190 -0.043406 12490 19771130 264.00000 268.75000 249.62500 0.035957 0.045432 0.070872 0.026966 12490 19771230 273.50000 273.50000 260.50000 0.035985 0.008218 0.021081 0.002847 12490 19780131 265.50000 270.75000 264.25000 -0.029250 -0.055202 -0.011152 -0.061514 12490 19780228 251.25000 265.50000 251.25000 -0.042825 -0.009275 0.026008 -0.024762 12490 19780331 235.50000 251.50000 235.50000 -0.062687 0.034013 0.067839 0.024931 12490 19780428 266.00000 266.00000 236.25000 0.129512 0.082841 0.079317 0.085416 12490 19780531 258.25000 267.25000 258.25000 -0.018308 0.023238 0.067620 0.004234 12490 19780630 257.25000 274.25000 257.12500 -0.003872 -0.010751 0.010292 -0.017585 12490 19780731 281.00000 281.00000 256.75000 0.092323 0.056749 0.052394 0.053910 12490 19780831 291.87500 297.75000 279.12500 0.048950 0.042352 0.093545 0.025924 12490 19780929 277.00000 304.50000 275.00000 -0.050964 -0.006891 0.006200 -0.007261 12490 19781031 264.25000 290.50000 264.25000 -0.046029 -0.110997 -0.177280 -0.091574 12490 19781130 269.50000 276.12500 258.50000 0.030766 0.033792 0.038205 0.016640 12490 19781229 298.50000 309.50000 270.12500 0.107607 0.017710 0.014346 0.014889 12490 19790131 308.75000 315.50000 303.50000 0.034338 0.049489 0.093661 0.039746 12490 19790228 300.00000 311.00000 298.50000 -0.017198 -0.026766 -0.016269 -0.036526 12490 19790330 315.50000 320.75000 300.75000 0.051667 0.065618 0.084167 0.055152 12490 19790430 314.25000 320.75000 306.75000 -0.003962 0.008522 0.028814 0.001673 12490 19790531 304.00000 319.75000 303.62500 -0.021671 -0.013576 -0.006845 -0.026336 12490 19790629 73.37500 78.00000 72.62500 -0.034539 0.046850 0.054663 0.038656 12490 19790731 69.75000 73.62500 68.50000 -0.049404 0.014991 0.021366 0.008746 12490 19790831 70.00000 72.25000 68.87500 0.015914 0.064728 0.075616 0.053078 12490 19790928 67.75000 71.25000 66.25000 -0.032143 0.001428 -0.001172 0.000000 12490 19791031 62.37500 68.87500 61.87500 -0.079336 -0.072660 -0.097915 -0.068606 12490 19791130 65.25000 65.75000 61.50000 0.059880 0.063603 0.065295 0.042624 12490 19791231 64.37500 67.25000 64.00000 -0.013410 0.028212 0.067485 0.016767 12490 19800131 68.62500 71.25000 62.50000 0.066019 0.065607 0.105129 0.057625 12490 19800229 63.50000 69.62500 62.00000 -0.062149 0.001015 -0.006301 -0.004380 12490 19800331 55.75000 63.25000 53.00000 -0.122047 -0.120224 -0.165043 -0.101795 12490 19800430 54.87500 55.50000 51.12500 -0.015695 0.052288 0.053461 0.041140 12490 19800530 55.37500 56.37500 52.12500 0.024784 0.060090 0.071249 0.046571 12490 19800630 58.75000 60.37500 56.00000 0.060948 0.037714 0.046176 0.026969 12490 19800731 65.25000 66.00000 59.50000 0.110638 0.069438 0.089279 0.065039 12490 19800829 65.50000 68.87500 64.25000 0.017011 0.023553 0.063984 0.005835 12490 19800930 64.12500 68.12500 63.75000 -0.020992 0.029498 0.052459 0.025168 12490 19801031 66.62500 70.50000 65.12500 0.038986 0.020093 0.047525 0.016021 12490 19801128 68.12500 72.00000 66.50000 0.035422 0.104951 0.069205 0.102377 12490 19801231 67.87500 69.00000 63.62500 -0.003670 -0.034409 -0.032416 -0.033874 12490 19810130 64.37500 71.50000 64.37500 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94.50000 0.009962 0.030219 0.047266 0.018995 12490 19830331 101.75000 104.25000 98.87500 0.027778 0.034673 0.050515 0.033095 12490 19830429 117.00000 117.25000 102.00000 0.149877 0.074188 0.080687 0.074922 12490 19830531 111.25000 117.62500 110.75000 -0.041026 0.013226 0.091740 -0.012346 12490 19830630 120.25000 123.50000 111.87500 0.080899 0.037838 0.046341 0.035224 12490 19830729 120.37500 125.87500 119.25000 0.001040 -0.031567 -0.017556 -0.033014 12490 19830831 119.50000 123.00000 116.25000 0.000623 0.003463 -0.032920 0.011319 12490 19830930 126.87500 128.75000 118.62500 0.061715 0.016059 0.000051 0.010158 12490 19831031 126.75000 134.25000 126.75000 -0.000985 -0.028049 -0.059273 -0.015174 12490 19831130 117.37500 127.50000 117.37500 -0.066469 0.029556 0.031713 0.017426 12490 19831230 122.00000 124.62500 117.62500 0.039404 -0.010464 -0.019672 -0.008834 12490 19840131 114.12500 124.25000 113.87500 -0.064549 -0.013023 0.005424 -0.009216 12490 19840229 110.25000 114.37500 107.75000 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