There seems to be lots of data errors in the mutual funds. Below is just a small sampling going back to 11/13/06. I created a spreadsheet that simply computes the absolute value of the % change from one day to the next...rolling it back, the idea being that days with a very large % change is probably due to an error, a price error, or an error due to not adjusting for capital gains or dividends correctly, etc. Using a sample of about 20,000 day over day databpoints, it appears that 5% is about 2 standard deviations over the average day over day change...so I set my lower limit at 5%. The list below sorts the results from highest ABSOLUTE % day over day change back to 11/13/06 only. As i get time, i will go further back..but running the spreadsheet with over 17000 mutual fund tickers takes alot of time. Maybe I'll create a scan to do it..it may be faster. I can only analyze 10 days at a time because it runs so slow...but I am posting this beginning list below to give you an idea of what's up. A 5% level obviously won't catch all the errors and perhaps some of them are valid..but the higher on the list you go, the higher the probability of error. Look at PWECX for example. This can't be close to right. Look at all the NEGATIVE PRICES in the negative 100s. What's up?
abs % chg Date ticker 1655.34% 12/13/06 ICIBX 1172.16% 12/13/06 ICIAX 176.24% 12/19/06 TAMVX 149.54% 12/13/06 IPSLX 147.47% 12/13/06 IPSBX 109.00% 12/13/06 IPSAX 103.13% 12/19/06 PWECX 100.19% 11/13/06 MPHYX 100.19% 11/13/06 MAHYX 100.15% 11/13/06 UHYPX 87.28% 12/15/06 DIVDX 87.09% 12/15/06 DIVAX 86.44% 12/15/06 DIVCX 84.99% 12/15/06 DIVBX 72.79% 12/22/06 JIREX 59.98% 12/19/06 AVALX 34.66% 12/28/06 UJPSX 34.06% 12/15/06 BRSCX 33.76% 12/15/06 LIFUX 33.68% 12/28/06 UJPIX 33.00% 12/15/06 USCIX 32.68% 12/21/06 AISCX 32.16% 12/21/06 APNBX 31.84% 12/27/06 ICPAX 30.97% 12/13/06 IVELX 30.55% 12/13/06 IVEQX 30.01% 12/15/06 DPEMX 27.23% 12/14/06 BIRMX 27.17% 12/13/06 IVEAX 26.94% 12/28/06 HEMGX 26.90% 12/28/06 HEMMX 26.87% 12/27/06 LZCOX 26.48% 12/27/06 LZSCX 26.37% 12/27/06 HISRX 25.53% 12/18/06 BBBFX 25.36% 12/18/06 IBBFX 24.37% 12/21/06 AILIX 23.73% 12/21/06 AAICX 23.63% 12/21/06 DABAX 23.11% 12/21/06 DABBX 23.08% 12/21/06 DABCX 22.70% 12/21/06 DABIX 22.65% 12/21/06 APCBX 21.95% 12/27/06 LZSMX 21.93% 12/27/06 LZISX 21.87% 12/15/06 JAGTX 21.82% 12/14/06 GBEMX 21.30% 12/20/06 MAGIX 21.29% 12/20/06 MGIFX 21.26% 12/20/06 RCECX 20.03% 12/14/06 SKSEX 19.22% 12/19/06 VALLX 19.04% 12/15/06 MICBX 18.92% 12/21/06 SWOSX 18.82% 12/6/06 MAKOX 18.79% 12/21/06 SWMSX 18.58% 12/14/06 RSGRX 18.31% 12/15/06 MICAX 18.16% 12/19/06 TPLNX 17.70% 12/14/06 WSCYX 17.51% 12/20/06 SSCYX 17.27% 12/6/06 RYCOX 17.12% 12/6/06 TMRCX 17.09% 12/13/06 IRHBX 16.92% 12/22/06 TGSVX 16.92% 12/27/06 AZIBX 16.88% 12/27/06 AZIAX 16.88% 12/27/06 AZICX 16.73% 12/20/06 ARTJX 16.71% 12/6/06 TMRFX 16.39% 12/14/06 RSIFX 16.36% 12/13/06 IRHAX 16.32% 12/6/06 TMRIX 16.08% 12/15/06 HCRBX 16.04% 12/15/06 HCRCX 16.04% 12/8/06 CCPCX 16.00% 12/14/06 RMCAX 15.80% 12/14/06 RMDIX 15.69% 12/28/06 HINTX 15.65% 12/28/06 HIVVX 15.57% 12/14/06 RSNRX 15.44% 12/21/06 GPGCX 15.19% 12/11/06 DRSMX 14.90% 12/13/06 MBRFX 14.80% 12/22/06 NRSBX 14.80% 12/22/06 NRSCX 14.74% 11/21/06 LADPX 14.72% 12/13/06 IRHLX 14.63% 12/21/06 MGEMX 14.53% 12/15/06 FVFDX 14.51% 12/29/06 APITX 14.49% 12/15/06 FVFBX 14.23% 12/6/06 MACSX 14.18% 12/15/06 HCRAX 14.18% 12/4/06 DLDRX 14.06% 12/20/06 RMKAX 13.94% 12/29/06 YCVTX 13.92% 12/11/06 LSCCX 13.89% 12/15/06 TEEMX 13.87% 12/22/06 NRSAX 13.87% 12/11/06 LSCBX 13.81% 12/20/06 GMSIX 13.76% 12/15/06 HCRDX 13.74% 12/29/06 CGROX 13.72% 12/11/06 LSRRX 13.66% 11/15/06 VVFCX 13.64% 12/14/06 WSLCX 13.63% 12/27/06 LZEMX 13.62% 12/20/06 RAGAX 13.54% 12/20/06 RMKIX 13.53% 12/11/06 LISRX 13.50% 12/7/06 SIMTX 13.48% 12/21/06 HCCEX 13.41% 12/27/06 LZOEX 13.21% 12/22/06 NECVX 13.21% 12/22/06 NEVBX 13.08% 12/15/06 GVEWX 13.05% 12/15/06 GVEVX 12.99% 12/22/06 TGVNX 12.94% 12/15/06 GVEYX 12.91% 12/22/06 TGVKX 12.87% 12/15/06 FVFCX 12.87% 11/14/06 SHGDX 12.85% 11/14/06 SHGBX 12.80% 11/14/06 SHGCX 12.74% 12/22/06 TGVOX 12.72% 12/15/06 FVFAX 12.71% 12/29/06 EMRCX 12.54% 12/14/06 PRAAX 12.52% 12/29/06 GBFAX 12.49% 12/19/06 CHUSX 12.46% 11/28/06 COCAX 12.44% 12/27/06 CNJFX 12.44% 12/7/06 CWVCX 12.36% 12/22/06 NEDCX 12.35% 12/22/06 NEDBX 12.34% 12/15/06 DPAGX 12.27% 12/15/06 SMEAX 12.26% 12/14/06 XSTFX 12.26% 12/11/06 DMGTX 12.11% 12/19/06 XAMSX 12.11% 12/15/06 ICSIX 12.08% 12/5/06 LFEAX 12.08% 12/5/06 LFETX 12.08% 12/7/06 CWVBX 12.03% 12/15/06 VKIIX 11.87% 12/15/06 RISIX 11.86% 12/15/06 GIEWX 11.82% 12/15/06 VKIAX 11.81% 12/15/06 GIEVX 11.77% 12/20/06 ARTVX 11.72% 12/15/06 VKIBX 11.71% 12/21/06 SWMGX 11.71% 12/19/06 PIIRX 11.68% 11/28/06 CWRSX 11.65% 11/14/06 SLFCX 11.63% 12/15/06 GIEYX 11.61% 12/29/06 LSVAX 11.60% 12/15/06 VKICX 11.58% 11/14/06 SLFBX 11.58% 11/14/06 SLFDX 11.51% 12/7/06 LGASX 11.51% 12/22/06 NEFVX 11.46% 12/22/06 TGSSX 11.35% 12/11/06 SEQUX 11.33% 11/14/06 SGSRX 11.32% 12/15/06 GSCWX 11.30% 12/27/06 CNZLX 11.26% 12/29/06 IIGCX 11.25% 11/14/06 SHGAX 11.23% 12/15/06 GSCVX 11.04% 12/22/06 NEFDX 11.01% 12/29/06 INIVX 10.99% 12/19/06 AMGCX 10.99% 12/15/06 MSRAX 10.97% 12/19/06 AMCGX 10.94% 12/15/06 GSCYX 10.87% 12/28/06 WMICX 10.86% 11/14/06 SGSIX 10.83% 12/7/06 CWVGX 10.74% 11/14/06 SHEBX 10.71% 12/28/06 ADEGX 10.70% 11/14/06 SHECX 10.63% 11/28/06 CMCPX 10.62% 11/14/06 SHEDX 10.55% 12/20/06 TAVIX 10.41% 12/29/06 KOGRX 10.26% 12/27/06 LZSIX 10.24% 12/27/06 LZESX 10.24% 12/4/06 PSBNX 10.22% 12/26/06 MARTX 10.20% 12/8/06 SLLAX 10.16% 12/12/06 SFCSX 10.13% 12/7/06 CWVIX 10.11% 12/8/06 SLLGX 10.02% 12/20/06 ARTMX 9.99% 11/14/06 SFFRX 9.96% 11/28/06 CMCEX 9.96% 12/29/06 DNAIX 9.92% 11/14/06 SLFRX 9.92% 12/22/06 TISVX 9.92% 12/19/06 AMGAX 9.91% 12/22/06 SAHMX 9.86% 12/15/06 GIEZX 9.81% 11/14/06 SERRX 9.77% 11/14/06 SHEMX 9.72% 12/19/06 VLIFX 9.66% 12/13/06 ICRLX 9.61% 12/13/06 ICRAX 9.60% 11/14/06 SFFIX 9.59% 12/13/06 ICRBX 9.32% 12/18/06 DFFVX 9.30% 12/14/06 PMGAX 9.28% 12/20/06 TAREX 9.26% 12/15/06 DPIEX 9.24% 11/14/06 SERIX 9.08% 12/18/06 DTMVX 9.06% 12/15/06 DPHYX 8.99% 12/7/06 HAREX 8.99% 12/7/06 HARSX 8.94% 12/19/06 ASRRX 8.93% 12/22/06 TISBX 8.92% 12/21/06 ALEIX 8.92% 12/22/06 SAUMX 8.91% 12/19/06 ASRGX 8.85% 12/22/06 TGAPX 8.84% 12/14/06 PMCIX 8.83% 12/28/06 NNLEX 8.80% 12/15/06 IMVBX 8.78% 12/28/06 NCLEX 8.75% 11/29/06 OGIYX 8.65% 12/22/06 TISGX 8.65% 12/14/06 KREYX 8.63% 12/21/06 AQEAX 8.59% 12/14/06 KREAX 8.56% 12/29/06 DCAIX 8.48% 12/28/06 SMIIX 8.47% 12/14/06 KRECX 8.46% 12/28/06 TWEBX 8.45% 12/28/06 SNRAX 8.43% 12/14/06 KREBX 8.39% 12/19/06 PGNBX 8.39% 12/28/06 RSIHX 8.39% 12/19/06 PIGRX 8.35% 12/6/06 PUVBX 8.33% 12/19/06 PIGMX 8.31% 12/28/06 SMIAX 8.29% 12/26/06 NICSX 8.29% 12/19/06 PNGAX 8.27% 12/20/06 ARTIX 8.24% 12/18/06 DFBMX 8.24% 12/28/06 FMNAX 8.21% 12/28/06 SMIBX 8.17% 12/28/06 RSITX 8.15% 12/19/06 DSVTX 8.14% 12/28/06 FBMGX 8.12% 12/7/06 LGSCX 8.10% 11/30/06 FFINX 8.06% 12/28/06 RSIOX 8.04% 12/28/06 SNRBX 8.02% 12/14/06 KSRYX 8.00% 12/15/06 GSCZX 8.00% 12/21/06 RYGEX 7.98% 12/15/06 WSDCX 7.97% 12/21/06 RYGHX 7.96% 12/14/06 KSRAX 7.88% 12/21/06 AQEBX 7.87% 12/21/06 RYGGX 7.86% 12/7/06 XSTFX 7.86% 11/30/06 NBVZX 7.85% 12/15/06 GVEZX 7.83% 12/14/06 KSRCX 7.83% 12/14/06 KSRBX 7.81% 12/6/06 PRENX 7.80% 11/27/06 AWGFX 7.78% 12/29/06 GHACX 7.75% 12/21/06 SWMIX 7.75% 12/15/06 ATICX 7.75% 12/22/06 HWAIX 7.74% 12/15/06 ATIBX 7.69% 12/18/06 MGRCX 7.64% 12/15/06 ATIAX 7.64% 12/18/06 DFAVX 7.63% 12/27/06 MFCPX 7.62% 12/15/06 ATIRX 7.62% 12/21/06 SWOIX 7.53% 12/18/06 DFUVX 7.53% 12/15/06 SRTDX 7.50% 12/21/06 PMVCX 7.49% 12/15/06 ATIIX 7.46% 12/22/06 TGONX 7.46% 12/19/06 AGIRX 7.46% 12/22/06 SABTX 7.44% 12/19/06 VLAAX 7.42% 12/14/06 RSCNX 7.42% 12/29/06 GHAAX 7.40% 12/29/06 MAFDX 7.40% 12/22/06 TGOKX 7.40% 12/29/06 GHAIX 7.39% 12/18/06 PVFIX 7.38% 12/14/06 RSCIX 7.37% 12/28/06 JHLGX 7.34% 12/22/06 TRCVX 7.33% 12/28/06 REBHX 7.32% 12/29/06 LCMMX 7.31% 12/21/06 PAMVX 7.31% 12/19/06 ALMRX 7.31% 12/28/06 JILGX 7.30% 11/30/06 SPVZX 7.30% 12/18/06 DFCVX 7.29% 12/28/06 JTLGX 7.29% 12/28/06 SEBIX 7.26% 12/26/06 MNRMX 7.25% 12/14/06 USTBX 7.25% 12/28/06 EVAMX 7.23% 12/22/06 DIVSX 7.23% 12/29/06 MAFAX 7.20% 12/19/06 VALSX 7.20% 12/15/06 SRTBX 7.19% 12/20/06 RMCVX 7.19% 12/28/06 REBTX 7.18% 12/18/06 DFLVX 7.18% 12/28/06 NBSAX 7.15% 12/13/06 IAIBX 7.12% 12/28/06 SLBAX 7.11% 12/27/06 HMCGX 7.10% 12/27/06 LZMOX 7.09% 12/28/06 REBOX 7.08% 12/13/06 IAILX 7.08% 12/27/06 HMDIX 7.06% 12/28/06 JSLGX 7.01% 12/27/06 LZMIX 7.00% 12/15/06 GGBWX 6.97% 12/15/06 GGBVX 6.94% 12/22/06 TCLCX 6.93% 12/15/06 LSHIX 6.92% 12/6/06 BMCFX 6.91% 12/28/06 SLBBX 6.90% 12/5/06 EBGLX 6.88% 12/28/06 JALGX 6.87% 12/15/06 DPCEX 6.87% 12/13/06 IAIAX 6.87% 12/22/06 TGEIX 6.86% 12/5/06 ECGLX 6.85% 12/22/06 TGLNX 6.83% 12/14/06 IGNAX 6.82% 12/28/06 JRLGX 6.82% 12/29/06 HOVLX 6.81% 11/29/06 DXMLX 6.81% 12/28/06 SCARX 6.80% 12/28/06 NBSBX 6.76% 12/15/06 SRTCX 6.72% 12/15/06 SRTAX 6.68% 12/18/06 DEMSX 6.67% 12/29/06 MAFCX 6.67% 12/7/06 LGFMX 6.60% 11/27/06 DXRLX 6.59% 12/29/06 MAFBX 6.58% 12/28/06 JILBX 6.58% 12/15/06 EXLSX 6.58% 12/28/06 JHLAX 6.56% 12/28/06 JTSBX 6.55% 12/13/06 PEMBX 6.52% 12/28/06 SNPIX 6.51% 12/26/06 MPHSX 6.48% 12/15/06 GCOWX 6.48% 12/26/06 DLHYX 6.47% 12/15/06 GCOVX 6.45% 12/22/06 TIMGX 6.45% 12/15/06 TFEQX 6.45% 12/26/06 MPHLX 6.44% 12/19/06 XEMOX 6.44% 12/28/06 JRLBX 6.44% 12/28/06 JALBX 6.44% 12/28/06 JSLBX 6.42% 12/28/06 SOPIX 6.37% 11/27/06 DXRSX 6.35% 12/18/06 DFSVX 6.32% 12/28/06 JBLBX 6.30% 12/21/06 PSPFX 6.29% 12/7/06 PSSJX 6.29% 12/28/06 JCLGX 6.26% 12/18/06 DISVX 6.26% 12/15/06 LLCVX 6.25% 12/26/06 MPHAX 6.25% 12/28/06 JCLBX 6.22% 12/28/06 JBLGX 6.21% 12/18/06 DFSCX 6.20% 12/29/06 VSVAX 6.20% 12/26/06 MPHNX 6.18% 12/13/06 ICVBX 6.18% 12/29/06 PYHIX 6.16% 12/12/06 WFOSX 6.15% 12/27/06 WBGBX 6.13% 12/15/06 VADDX 6.12% 11/14/06 SSCBX 6.12% 11/14/06 SSVDX 6.12% 11/14/06 SVMCX 6.12% 12/13/06 ICVLX 6.09% 12/15/06 LCVJX 6.07% 12/13/06 ICVAX 6.07% 12/14/06 USTFX 5.98% 12/29/06 PVFAX 5.98% 12/29/06 AVIEX 5.97% 12/15/06 GGBYX 5.94% 12/22/06 PINSX 5.94% 12/15/06 DCRIX 5.91% 12/28/06 RRPIX 5.90% 12/29/06 FISBX 5.88% 12/20/06 FEFPX 5.88% 12/13/06 FEFPX 5.88% 12/28/06 JILCX 5.88% 12/28/06 JTLRX 5.88% 12/29/06 ADJEX 5.85% 12/28/06 JHLMX 5.85% 12/28/06 JTLMX 5.81% 12/28/06 JSLCX 5.81% 12/28/06 TEQUX 5.81% 12/28/06 JRLCX 5.81% 12/12/06 WFMBX 5.79% 12/26/06 CNWFX 5.78% 12/28/06 JILMX 5.78% 12/28/06 JSLMX 5.74% 12/28/06 JALRX 5.72% 12/27/06 NCTWX 5.71% 12/28/06 JALMX 5.71% 12/28/06 JRLMX 5.70% 12/22/06 CMDPX 5.67% 11/21/06 PMPIX 5.66% 12/22/06 TMVIX 5.66% 12/5/06 PHGCX 5.66% 12/5/06 PIHGX 5.66% 12/28/06 HICFX 5.65% 11/21/06 PMPSX 5.62% 11/14/06 SSVRX 5.61% 12/28/06 JCLCX 5.61% 12/28/06 JBLCX 5.60% 12/22/06 AMDPX 5.59% 12/20/06 ARTQX 5.59% 12/28/06 HICCX 5.58% 12/28/06 JCLMX 5.57% 11/14/06 SSCVX 5.56% 12/28/06 FAMEX 5.54% 11/27/06 DXQLX 5.54% 12/28/06 SHPIX 5.52% 12/27/06 NNTWX 5.52% 12/22/06 TGINX 5.51% 12/28/06 JBLMX 5.51% 12/14/06 NAPRX 5.50% 12/22/06 TRBDX 5.49% 11/27/06 DXQSX 5.49% 12/27/06 MBEQX 5.48% 12/5/06 PDHZX 5.48% 12/26/06 CNWEX 5.46% 12/27/06 AZAGX 5.46% 12/27/06 MNNKX 5.46% 11/16/06 CICVX 5.45% 12/28/06 FFCEX 5.43% 12/5/06 PGARX 5.42% 12/4/06 PLVNX 5.42% 12/28/06 BRPIX 5.40% 12/5/06 PHGAX 5.39% 12/29/06 FISSX 5.38% 12/4/06 PLVPX 5.38% 12/27/06 PFNDX 5.36% 11/29/06 OEPIX 5.36% 11/14/06 SSVIX 5.35% 11/29/06 OEPSX 5.34% 12/20/06 ARTKX 5.33% 12/15/06 VADCX 5.30% 12/27/06 AZBGX 5.28% 12/15/06 BTTNX 5.27% 12/20/06 TASCX 5.26% 12/15/06 FRMCX 5.25% 11/30/06 PMPSX 5.23% 11/30/06 PMPIX 5.23% 11/27/06 UAPIX 5.21% 11/27/06 UAPSX 5.21% 12/15/06 ATDIX 5.20% 12/22/06 CEDPX 5.18% 12/28/06 BCIFX 5.17% 12/18/06 OEPIX 5.17% 12/27/06 AZCGX 5.17% 12/18/06 OEPSX 5.17% 12/28/06 CNCRX 5.16% 12/14/06 RSSGX 5.16% 12/15/06 BTTTX 5.15% 12/22/06 AEDPX 5.14% 12/14/06 RFSIX 5.14% 11/27/06 RYRSX 5.14% 11/27/06 RYIUX 5.14% 11/27/06 RYIZX 5.13% 12/28/06 FAMVX 5.13% 11/27/06 RYRLX 5.13% 11/27/06 DXMLX 5.12% 12/19/06 ASTBX 5.12% 11/27/06 RYQCX 5.11% 11/27/06 RYIRX 5.11% 12/15/06 BTFTX 5.11% 11/27/06 RYRUX 5.10% 12/15/06 ACTRX 5.10% 11/27/06 UCPSX 5.09% 12/21/06 HCVEX 5.08% 11/27/06 INPSX 5.07% 11/27/06 INPIX 5.07% 11/27/06 UCPIX 5.07% 12/29/06 MHEFX 5.07% 11/16/06 CGIIX 5.07% 11/27/06 DXZLX 5.06% 12/27/06 ASGIX 5.06% 12/28/06 UCPIX 5.02% 12/29/06 JACOX 5.02% 12/29/06 LSGIX 5.02% 12/21/06 SAISX 5.02% 12/14/06 RSINX 5.01% 12/15/06 DCPFX 5.01% 12/28/06 SNPSX
