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William Blair & Company

William Blair & Company Portfolio holdings

AUM $34.9B
1-Year Est. Return 18.88%
This Fund
S&P 500
This Quarter Est. Return
+5%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+512.03%
AUM
$56.2B
AUM Growth
+$5.67B
Cap. Flow
+$1.41B
Cap. Flow %
2.51%
Top 10 Hldgs %
8.17%
Holding
2,258
New
269
Increased
765
Reduced
785
Closed
211

Top Sells

Rank Stock Value
1
TSM icon
TSMC
TSM
+$102M
2
UNP icon
Union Pacific
UNP
+$72.8M
3
SWI
SOLARWINDS INC COM STK (DE)
SWI
+$70.7M
4
P
Pandora Media Inc
P
+$65.7M
5
HOLX
Hologic
HOLX
+$60.9M

Sector Composition

Rank Sector Weight
1 Industrials 9.02%
2 Technology 6.74%
3 Consumer Discretionary 6.57%
4 Healthcare 5.86%
5 Financials 5.46%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
EXEL icon
1276
Exelixis
EXEL
$14.1B
$112K ﹤0.01%
19,400
+3,900
+25% +$20.2K
RAD
1277
DELISTED
Rite Aid Corporation
RAD
$109K ﹤0.01%
+1,150
New +$78.5K
IRT icon
1278
Independence Realty Trust
IRT
$4.02B
$107K ﹤0.01%
+13,000
New +$108K
RMBS icon
1279
Rambus
RMBS
$10.9B
$106K ﹤0.01%
11,325
SSRI
1280
DELISTED
Silver Standard Resources
SSRI
$106K ﹤0.01%
17,328
-3,134
-15% -$23.5K
VVUS
1281
DELISTED
Vivus Inc
VVUS
$102K ﹤0.01%
+1,100
New +$137K
FTEK icon
1282
Fuel Tech
FTEK
$47.7M
$95K ﹤0.01%
+22,000
New +$87.5K
PBW icon
1283
Invesco WilderHill Clean Energy ETF
PBW
$427M
$93K ﹤0.01%
2,940
FOE
1284
DELISTED
Ferro Corporation
FOE
$93K ﹤0.01%
+10,260
New +$76.5K
RHT
1285
CALL
DELISTED
Red Hat Inc
RHT
$92K ﹤0.01%
+2,000
New +$101K
MWW
1286
DELISTED
Monster Worldwide Inc
MWW
$86K ﹤0.01%
19,625
-750
-4% -$3.68K
LIME
1287
DELISTED
LIME ENERGY CO.NEW COMMON STOCK
LIME
$85K ﹤0.01%
25,059
+1,012
+4% +$4.91K
HK
1288
DELISTED
Halcon Resources Corporation
HK
$84K ﹤0.01%
111
-9
-8% -$8.21K
GST
1289
DELISTED
Gastar Exploration Inc.
GST
$79K ﹤0.01%
+20,000
New +$69.1K
CACH
1290
DELISTED
CACHE INC (DE)
CACH
$79K ﹤0.01%
13,336
KERX
1291
DELISTED
Keryx Biopharmaceuticals Inc
KERX
$72K ﹤0.01%
+7,200
New +$64.1K
KGC icon
1292
Kinross Gold
KGC
$28B
$70K ﹤0.01%
13,934
-705
-5% -$3.73K
ANR
1293
DELISTED
Alpha Natural Resources Inc
ANR
$68K ﹤0.01%
11,581
SMED
1294
DELISTED
Sharps Compliance Corp
SMED
$61K ﹤0.01%
20,000
-2,000
-9% -$5.4K
KERX
1295
CALL
DELISTED
Keryx Biopharmaceuticals Inc
KERX
$60K ﹤0.01%
+6,000
New +$53.4K
NVAX icon
1296
Novavax
NVAX
$1.26B
$56K ﹤0.01%
899
AMD icon
1297
Advanced Micro Devices
AMD
$846B
$54K ﹤0.01%
14,375
VTSS
1298
DELISTED
VITESSE SEMICONDUCTOR CORPORATION COMMON STOCK
VTSS
$54K ﹤0.01%
18,000
DRRX
1299
DELISTED
DURECT Corp
DRRX
$52K ﹤0.01%
3,875
ACHN
1300
DELISTED
Achillion Pharmaceuticals
ACHN
$52K ﹤0.01%
17,500

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William Blair & Company's Q3 2013 Portfolio in Review

As of Q3 2013, William Blair & Company held 2,258 positions worth $56.2B, up 11% from $50.6B the previous quarter. Its ten largest holdings account for 8.2% of the portfolio.

William Blair & Company's Q3 2013 filing shows 269 new, 765 increased, 785 reduced and 211 closed positions. Its largest new stake was Canadian Pacific Kansas City: 5,515,110 shares worth $136M. The largest sale was TSMC, an estimated $102M.

By sector, the portfolio is most concentrated in Industrials at 9% of assets, up from 8.7% a quarter earlier, followed by Technology and Consumer Discretionary.

  • William Blair & Company's largest Q3 2013 buy was Canadian Pacific Kansas City: 5,515,110 shares worth $136M.
  • William Blair & Company added most to COMPANHIA BEBIDA ADS EACH REPSTG 1 PFD SH in Q3 2013, an estimated $123M increase.
  • William Blair & Company's biggest Q3 2013 reduction was TSMC, cutting an estimated $102M.
  • William Blair & Company fully exited Precision Drilling in Q3 2013, selling an estimated $27.8M.
  • William Blair & Company's ten largest holdings make up 8.2% of its $56.2B portfolio in Q3 2013.
  • William Blair & Company opened 269 new positions and closed 211 in Q3 2013.
  • William Blair & Company's portfolio value rose 11% quarter-over-quarter to $56.2B.

Based on William Blair & Company's 13F filing for Q3 2013, filed 12 Nov 2013.