Fund Portfolio for William Blair Income I (BIFIX)

  • Style Box Details

    Details
    Average Eff Duration 3.83 Yrs
    Average Eff Maturity 5.07 Yrs
    Average Credit Quality AA

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    Style Box Detail calculations do not include the fund´s short positions (if any)
    Data as of 09/30/2009

  • Asset Allocation


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  • Sector Weightings

    Bonds Relative to Category Average Net Assets
    US Government 5.61% 0.26 5.61%
    US Treasuries 4.24% 0.38 4.24%
    TIPS 1.37% 2.54 1.37%
    US Agency 0.00% 0.00 0.00%
    Mortgage 27.22% 1.26 27.22%
    Mortgage Pass-Thru 27.21% 2.72 27.21%
    Mortgage CMO 0.01% 0.00086 0.01%
    Mortgage ARM 0.00% — 0.00%
    Credit 52.96% 1.56 52.96%
    US Corporate 46.26% 1.77 46.26%
    Asset-Backed 6.70% 0.91 6.70%
    Convertible 0.00% 0.00 0.00%
    Municipal 0.00% 0.00 0.00%
    Inflation Proof 0.00% — 0.00%
    Foreign 9.44% 1.20 9.44%
    Foreign Corp 9.44% 1.29 9.44%
    Foreign Govt 0.00% 0.00 0.00%
    Cash 4.77% 0.26 4.77%
    Data as of 09/30/2009

  • Bond Quality

    AAA 35.10%
    AA 15.30%
    A 40.70%
    BBB 8.90%
    BB 0.00%
    B 0.00%
    Below B 0.00%
    Not Rated 0.00%
    Data as of 05/31/2009

  • Top 25 Holdings

    Total Number of Stock Holdings (short): —
    Total Number of Stock Holdings (long): 0
    Total Number of Bond Holdings (short): —
    Total Number of Bond Holdings (long): 135
    Total Number of Other Holdings (short): —
    Total Number of Other Holdings (long): 5
    Assets in Top 10 Holdings: 16.47%
    Turnover: 38.00%
    30 Day SEC Yield % —
    Summary data as of 08/31/2009
    Holdings Maturity Date Total Holdings Value of Holdings Net Assets
    + Repurchase Agreement — 3.29 M 3.29 M 2.71%
    - FHLMC 6.5% 07/01/2022 2.31 M 2.5 M 2.06%
    - FNMA 7% 07/01/2020 2.09 M 2.29 M 1.88%
    = US Treasury Note 5.125% 05/15/2016 2 M 2.27 M 1.87%
    = Exelon Generation 6.2% 10/01/2017 2 M 2.12 M 1.75%
    = Corporacion Nacl Del Cobre 144A 4.75% 10/15/2014 1.82 M 1.92 M 1.58%
    = Intl Busn Machs 5.7% 09/14/2017 1.75 M 1.91 M 1.58%
    = Sbc Comms 5.1% 09/15/2014 1.75 M 1.89 M 1.56%
    = VERIZON COMMUNICATIONS 11/01/2018 1.48 M 1.87 M 1.54%
    = Jpmorgan Chase 6.125% 06/27/2017 1.75 M 1.85 M 1.52%
    = Abbott Labs 5.6% 11/30/2017 1.65 M 1.81 M 1.49%
    = TESCO PLC 11/15/2017 1.75 M 1.8 M 1.48%
    = Morgan Stanley 6.6% 04/01/2012 1.6 M 1.74 M 1.43%
    + US Treasury Note 2.375% 01/15/2017 1.6 M 1.67 M 1.38%
    = BOEING CAP 09/27/2010 1.55 M 1.64 M 1.35%
    = United Tech 4.875% 05/01/2015 1.5 M 1.63 M 1.34%
    - FNMA 8% 02/01/2016 1.47 M 1.63 M 1.34%
    = Simon Ppty Grp 6.35% 08/28/2012 1.5 M 1.59 M 1.31%
    = Phillips Pete 8.75% 05/25/2010 1.5 M 1.59 M 1.31%
    = GOLDMAN SACHS GROUP 10/01/2014 1.5 M 1.56 M 1.29%
    = GENERAL ELEC CAP 05/01/2013 1.5 M 1.56 M 1.28%
    = HOUSEHOLD FIN 07/15/2010 1.45 M 1.52 M 1.25%
    = AMERICAN EXPRESS 08/28/2017 1.5 M 1.5 M 1.24%
    = Fedex 01/15/2019 1.25 M 1.5 M 1.23%
    - Southwest Air 2007-1 6.15% 02/01/2024 1.54 M 1.5 M 1.23%
    + Increase - Decrease = No change * New since last portfolio
    Top 25 holdings account for the fund's short positions (if any). Net short positions appear shaded.
    Data as of 10/31/2009