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U.S. Stock Options With Biggest Changes in Implied Volatility

By Bloomberg News - Oct 6, 2011

The following are the U.S. stock options that had the biggest percentage changes in implied volatility from the previous trading day as of 11:30 a.m. in New York. This {OSCH <GO>} search was limited to options that are more than 10 days from expiration, have trading volume of at least 200 contracts and have strike prices within 5 percent of the underlying security's price.


Top Volatility Increases

                         Contract            %Chg  Impl.
Ticker    Name           Description          Vol.  Vol.   Price  %Chg  Volume
=============================================================================
XLE    SPDR-ENERGY  XLE US 10/22/11 C50      119.5  60.2  11.30    8.1   5000
CMTL   COMTECH TEL  CMTL US 10/22/11 P30      84.4  61.2   1.55  -48.3   2769
CMTL   COMTECH TEL  CMTL US 10/22/11 P27.5    77.5  62.5   0.55  -59.6   3534
CMTL   COMTECH TEL  CMTL US 10/22/11 C27.5    68.3  59.5   2.95  145.8    773
CMTL   COMTECH TEL  CMTL US 10/22/11 C30      64.3  56.2   1.45  625.0   1253
QQQ    POWERSH-QQQ  QQQ US 10/22/11 C46       62.3  46.8   7.89    2.1    481
CMTL   COMTECH TEL  CMTL US 11/19/11 C30      56.0  54.0   2.10  281.8   3789
CMTL   COMTECH TEL  CMTL US 10/22/11 P25      49.9  67.0   0.15  -50.0    206
EXC    EXELON CORP  EXC US 10/22/11 C38       47.5  26.1   3.10  -42.0    210
QQQ    POWERSH-QQQ  QQQ US 10/22/11 C44       43.8  43.8  10.06    4.6    221
CMTL   COMTECH TEL  CMTL US 11/19/11 C27.5    41.3  54.1   2.60   57.6   1135
QQQ    POWERSH-QQQ  QQQ US 10/22/11 C47       36.7  44.3   7.10    6.0   1091
TZOO   TRAVELZOO I  TZOO US 10/22/11 C12.5    36.6 182.7  13.10   42.4    505
CMTL   COMTECH TEL  CMTL US 01/21/12 C30      32.1  50.9   3.10  113.8    752
HAR    HARMAN INTL  HAR US 10/22/11 P27.5     30.7  80.3   0.76  -45.7    447
HAR    HARMAN INTL  HAR US 10/22/11 C27.5     26.6  76.5   3.60  200.0    534
HAR    HARMAN INTL  HAR US 10/22/11 P30       24.0  69.8   1.59  -47.0    330
CMTL   COMTECH TEL  CMTL US 01/21/12 C27.5    23.9  50.5   4.40   69.2   1147
CMTL   COMTECH TEL  CMTL US 01/21/12 P30      23.9  47.5   3.00  -33.3    492
CMTL   COMTECH TEL  CMTL US 01/21/12 P27.5    22.6  49.8   2.10   -8.7   1296
AIMC   ALTRA HOLDI  AIMC US 02/18/12 C10      21.9  78.8   3.30    0.0    500
GGP    GENERAL GRO  GGP US 10/22/11 P12       20.6  76.7   1.00  -33.3    300
SPY    SPDR S&P 50  SPY US 10/22/11 C102      20.1  45.0  13.55    4.8    288
QQQ    POWERSH-QQQ  QQQ US 10/22/11 C48       18.6  43.4   6.02    3.8    990
MON    MONSANTO CO  MON US 10/22/11 P70       16.5  39.4   2.12  -51.8   1959
EEM    ISHARES-EMG  EEM US 06/16/12 P37       15.5  37.9   5.30   -4.5   1313
MDR    MCDERMOTT I  MDR US 10/22/11 P13       15.4 143.4   1.10  -33.3    362
MPEL   MELCO CROWN  MPEL US 11/19/11 C6       15.3 110.8   3.70  100.0   2555
MDR    MCDERMOTT I  MDR US 02/18/12 C13       15.3  88.6   3.60  213.0    201
MON    MONSANTO CO  MON US 10/22/11 C65       14.6  45.1   5.91   99.0    565
MDR    MCDERMOTT I  MDR US 10/22/11 P12       14.5 139.1   0.65  -29.4    573
RBA    RITCHIE BRO  RBA US 11/19/11 P20       14.5  59.2   2.00    0.0    458
REE    RARE ELEMEN  REE US 10/22/11 C4        14.4 107.6   1.20   60.0    493
MON    MONSANTO CO  MON US 10/22/11 C67.5     14.2  42.0   4.00  170.3    365
COP    CONOCOPHILL  COP US 10/22/11 C65       14.1  34.9   0.93  -21.2    441
MON    MONSANTO CO  MON US 10/22/11 C62.5     14.1  48.6   8.00   70.2    230
CECO   CAREER EDUC  CECO US 10/22/11 P12      14.1  97.1   0.20  -60.0   1504
MON    MONSANTO CO  MON US 10/22/11 C72.5     13.6  37.5   1.15  422.7   4977
QQQ    POWERSH-QQQ  QQQ US 10/22/11 C49       13.6  43.0   5.14    4.3    610
TSL    TRINA SOLAR  TSL US 10/22/11 P7        13.5 121.7   0.27  -35.7    354
MDR    MCDERMOTT I  MDR US 10/22/11 P11       13.4 137.8   0.42    5.0    309
MDR    MCDERMOTT I  MDR US 02/18/12 C12       13.2  92.0   4.20   23.5    517
MON    MONSANTO CO  MON US 10/22/11 C70       13.1  39.1   2.38  266.1   2550
MDR    MCDERMOTT I  MDR US 01/21/12 P14       12.9  95.6   2.72  -32.0    492
FORM   FORMFACTOR   FORM US 11/19/11 C6       12.8  69.9   0.90    5.9   1000
CECO   CAREER EDUC  CECO US 10/22/11 C15      12.8  75.3   0.64   42.2    915
MDR    MCDERMOTT I  MDR US 10/22/11 P14       12.6 147.9   1.75  -41.7    350
MON    MONSANTO CO  MON US 10/22/11 P67.5     12.4  42.1   1.30  -52.0    963
MDR    MCDERMOTT I  MDR US 11/19/11 P14       12.4 119.0   2.20  -38.9    993
MDR    MCDERMOTT I  MDR US 11/19/11 C14       12.2 119.9   2.35   34.3    568
XLE    SPDR-ENERGY  XLE US 10/22/11 C54       12.2  54.2   7.40    6.5   6311
MDR    MCDERMOTT I  MDR US 01/21/12 C14       12.0  94.9   2.84   42.0    761
HYG    ISH-IBOXX H  HYG US 12/17/11 P84       11.9  26.5   5.30  -27.4    310
MON    MONSANTO CO  MON US 10/22/11 P65       11.8  45.2   0.71  -57.0   1176
MON    MONSANTO CO  MON US 10/22/11 P62.5     11.6  49.0   0.42  -54.4    714
MCK    MCKESSON CO  MCK US 10/22/11 P55       11.2  66.8   0.15  -40.0    828
APKT   ACME PACKET  APKT US 10/22/11 C35      11.0  92.5   5.40  -11.5    291
MON    MONSANTO CO  MON US 10/22/11 P60       10.8  53.5   0.24  -55.6    299
NUAN   NUANCE COMM  NUAN US 10/22/11 C22      10.8  64.9   0.80  100.0   2240
SIRI   SIRIUS XM R  SIRI US 11/19/11 C1.5     10.6  77.8   0.18   38.5    395
YHOO   YAHOO! INC   YHOO US 01/19/13 C15      10.3  40.5   2.89   -8.2    519
CECO   CAREER EDUC  CECO US 10/22/11 P14      10.3  79.0   0.75  -37.5    498
AUY    YAMANA GOLD  AUY US 10/22/11 C11       10.1  76.7   3.00   15.4    761
HYG    ISH-IBOXX H  HYG US 12/17/11 P85       10.1  26.0   5.80   -7.9    400
C      CITIGROUP I  C1 US 12/17/11 P5         10.0  69.4   2.52   -1.2    235

Top Volatility Decreases



                         Contract            %Chg  Impl.
Ticker    Name           Description          Vol.  Vol.   Price  %Chg  Volume
=============================================================================
LDK    LDK SOLAR C  LDK US 01/21/12 C2.5     -39.6  34.9   1.00   17.6    250
MHS    MEDCO HEALT  MHS US 10/22/11 C50      -30.9  29.4   0.60   50.0    998
LDK    LDK SOLAR C  LDK US 12/17/11 C3       -30.4  53.1   0.63   12.5    520
OCZ    OCZ TECHNOL  OCZ US 10/22/11 P5       -30.4 103.1   0.15  -75.0    273
NLY    ANNALY CAPI  NLY US 10/22/11 C16      -26.4  28.0   0.37    5.7   5438
IVR    INVESCO MOR  IVR US 10/22/11 C15      -24.8  27.5   0.15   87.5   1388
IYT    ISHARES-DJ   IYT US 10/22/11 P79      -24.5  39.3   3.00  -44.4    460
NLY    ANNALY CAPI  NLY US 10/22/11 P16      -24.1  27.7   0.33  -46.8    516
P      PANDORA MED  P US 10/22/11 C12        -23.3  84.5   1.35   35.0    300
JDSU   JDS UNIPHAS  JDSU US 01/19/13 C2.5    -22.2  93.8   7.80   26.4    400
JNK    SPDR BARCLA  JNK US 10/22/11 P36      -20.4  23.7   0.85  -29.8   2000
YHOO   YAHOO! INC   YHOO US 10/22/11 P12     -18.6  67.5   0.05    0.0    489
BMY    BRISTOL-MYE  BMY US 01/21/12 C22.5    -18.1  43.7  10.13    0.8    427
JBLU   JETBLUE AIR  JBLU US 10/22/11 P4      -17.8  67.9   0.30  -25.0   1366
MHS    MEDCO HEALT  MHS US 10/22/11 C47.5    -17.2  32.1   1.60  113.3    778
SIFY   SIFY TECHNO  SIFY US 10/22/11 P2.5    -16.5 188.9   0.20  -20.0    269
NILSY  MMC NORILSK  NNIA GR 12/17/11 C19     -16.4  56.0   1.78    0.0   1000
JNK    SPDR BARCLA  JNK US 10/22/11 P35      -16.1  28.2   0.60  -25.0   1029
JASO   JA SOLAR HO  JASO US 10/22/11 P2      -15.5  82.2   0.20  -20.0    200
EXC    EXELON CORP  EXC US 10/22/11 P38      -15.4  27.8   0.12  -40.0   2894
ZAGG   ZAGG INC     ZAGG US 10/22/11 C12     -15.4  77.5   0.75   66.7    431
TRH    TRANSATLANT  TRH US 11/19/11 P45      -15.0  31.4   0.40  -65.2    200
YHOO   YAHOO! INC   YHOO US 10/22/11 P13     -15.0  69.1   0.15   -6.2   1115
ZAGG   ZAGG INC     ZAGG US 10/22/11 C10     -14.4  82.0   2.10   27.3    234
C      CITIGROUP I  C1 US 01/21/12 P7.5      -14.4  91.6   5.00   -4.8    479
HRBN   HARBIN ELEC  HRBN US 11/19/11 C23     -14.2  35.8   0.75    0.0    311
AMR    AMR CORP     AMR US 10/22/11 C2       -14.2 151.1   0.53    1.9   2019
YHOO   YAHOO! INC   YHOO US 10/22/11 P14     -14.0  70.7   0.39   14.7   2751
HRBN   HARBIN ELEC  HRBN US 12/17/11 C17.5   -13.7  65.6   5.40    3.9   1303
NLY    ANNALY CAPI  NLY US 11/19/11 C16      -13.6  32.2   0.71    4.4    618
NLY    ANNALY CAPI  NLY US 10/22/11 P15      -13.4  36.9   0.13  -53.6    359
FAZ    FINANCIAL B  FAZ US 10/22/11 C49      -13.2 111.5  18.20  -32.3    750
NLY    ANNALY CAPI  NLY US 10/22/11 C15      -13.1  36.8   1.07   13.8    251
HXL    HEXCEL CORP  HXL US 10/22/11 C20      -12.6  57.0   1.70  -22.7    252
GLNG   GOLAR LNG L  GLNG US 10/22/11 P30     -12.5  65.1   1.35  -45.3    269
HRBN   HARBIN ELEC  HRBN US 11/19/11 C22     -12.4  47.8   1.55    3.3    710
CETV   CENTRAL EUR  CETV US 11/19/11 P7.5    -12.4  98.7   0.70  -30.0    500
LVLT   LEVEL 3 COM  LVLT US 03/17/12 P1.5    -12.3  80.0   0.30  -23.1    850
TGT    TARGET CORP  TGT US 10/22/11 C52.5    -12.2  29.1   1.00  122.2   9241
YHOO   YAHOO! INC   YHOO US 10/22/11 C14     -12.1  70.8   1.49  -34.4   2751
HRBN   HARBIN ELEC  HRBN US 11/19/11 C17     -12.0  90.6   5.80   18.4    394
TGT    TARGET CORP  TGT US 10/22/11 P52.5    -12.0  29.0   1.60  -52.9    366
NLY    ANNALY CAPI  NLY US 11/19/11 P16      -11.7  32.2   0.71  -21.1    222
SFI    ISTAR FINAN  SFI US 10/22/11 P5       -11.4  74.8   0.10  -50.0   2491
SPRD   SPREADTRUM-  SPRD US 10/22/11 P19     -11.2  80.0   1.05  -62.5    300
HRBN   HARBIN ELEC  HRBN US 11/19/11 C20     -10.9  68.2   3.30   10.0    512
NLY    ANNALY CAPI  NLY US 01/21/12 P6       -10.9  79.7   0.06  100.0    338
HRBN   HARBIN ELEC  HRBN US 11/19/11 P22     -10.7  89.1   2.59  -17.8   1042
GE     GENERAL ELE  GE US 01/21/12 C5        -10.7 105.9  10.30   -6.4    747
NLY    ANNALY CAPI  NLY US 11/19/11 P15      -10.2  36.0   0.37  -35.1    234
FSLR   FIRST SOLAR  FSLR US 10/22/11 P45     -10.1  96.4   0.12  -76.5    291

x - Ex-dividend. * - Ex-earnings.

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