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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
+23.04%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+563.35%
AUM
$16.4B
AUM Growth
+$2.69B
Cap. Flow
+$306M
Cap. Flow %
1.86%
Top 10 Hldgs %
21%
Holding
1,770
New
129
Increased
754
Reduced
490
Closed
65

Top Buys

Rank Stock Value
1
FISV
Fiserv Inc
FISV
+$65.4M
2
P
Everpure Inc
P
+$35.3M
3
PYPL icon
PayPal
PYPL
+$30.4M
4
BA icon
Boeing
BA
+$28.3M
5
TWLO icon
Twilio
TWLO
+$24.2M

Top Sells

Rank Stock Value
1
TTE icon
TotalEnergies
TTE
+$155M
2
RHT
Red Hat Inc
RHT
+$73.4M
3
ULTI
Ultimate Software Group Inc
ULTI
+$70.6M
4
INGN icon
Inogen
INGN
+$25.8M
5
CELG
Celgene Corp
CELG
+$20.1M

Sector Composition

Rank Sector Weight
1 Technology 22.65%
2 Healthcare 17.38%
3 Financials 12.48%
4 Consumer Discretionary 9.87%
5 Industrials 9.37%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
OEF icon
1076
iShares S&P 100 ETF
OEF
$20.5B
$360K ﹤0.01%
2,874
– –
DSGR icon
1077
Distribution Solutions Group
DSGR
$1.61B
$359K ﹤0.01%
22,900
-11,362
-33% -$172K
XENT
1078
DELISTED
Intersect ENT, Inc
XENT
$357K ﹤0.01%
11,093
-50
-0.4% -$1.55K
CSGS
1079
DELISTED
CSG Systems International
CSGS
$356K ﹤0.01%
8,407
+163
+2% +$6.3K
EDIT icon
1080
Editas Medicine
EDIT
$442M
$355K ﹤0.01%
14,533
-938
-6% -$21.2K
FFIN icon
1081
First Financial Bankshares
FFIN
$4.96B
$355K ﹤0.01%
12,298
-968
-7% -$29.6K
WFC.PRL icon
1082
Wells Fargo 7.5% Non Cumv Perp Conv
WFC.PRL
$4.65B
$354K ﹤0.01%
274
– –
MTB icon
1083
M&T Bank
MTB
$36.3B
$353K ﹤0.01%
2,249
-203
-8% -$33.3K
SWKS icon
1084
Skyworks Solutions
SWKS
$10.5B
$351K ﹤0.01%
4,251
-1,242
-23% -$95.9K
XT icon
1085
iShares Future Exponential Technologies ETF
XT
$3.96B
$351K ﹤0.01%
9,252
– –
CNC icon
1086
Centene
CNC
$32.5B
$349K ﹤0.01%
6,572
-3,278
-33% -$199K
LUMN icon
1087
Lumen
LUMN
$6.48B
$349K ﹤0.01%
29,140
-1,761
-6% -$24.5K
PSLV icon
1088
Sprott Physical Silver Trust
PSLV
$13.2B
$349K ﹤0.01%
63,033
+11,350
+22% +$64.2K
CIEN icon
1089
Ciena
CIEN
$58.1B
$347K ﹤0.01%
9,300
– –
GUNR icon
1090
FlexShares Global Upstream Natural Resources Index Fund
GUNR
$7.34B
$346K ﹤0.01%
10,570
-8,644
-45% -$276K
HCR
1091
DELISTED
Hi-Crush Inc. Common Stock
HCR
$346K ﹤0.01%
77,825
+2,625
+3% +$11K
SKYY icon
1092
First Trust Cloud Computing ETF
SKYY
$3.12B
$341K ﹤0.01%
5,914
-2,403
-29% -$131K
TCRT icon
1093
Alaunos Therapeutics
TCRT
$4.81M
$341K ﹤0.01%
591
– –
PINC
1094
DELISTED
Premier
PINC
$340K ﹤0.01%
9,870
-1,885
-16% -$69.7K
PNR icon
1095
Pentair
PNR
$11.2B
$340K ﹤0.01%
7,632
-848
-10% -$35.3K
VCR icon
1096
Vanguard Consumer Discretionary ETF
VCR
$6.33B
$338K ﹤0.01%
1,958
-1,070
-35% -$177K
AYI icon
1097
Acuity Brands
AYI
$10.8B
$337K ﹤0.01%
2,811
+1,021
+57% +$127K
GEN icon
1098
Gen Digital
GEN
$17.5B
$337K ﹤0.01%
14,650
-214
-1% -$4.66K
CSLT
1099
DELISTED
CASTLIGHT HEALTH, INC.
CSLT
$337K ﹤0.01%
89,925
+22,020
+32% +$69.9K
SCHP icon
1100
Schwab US TIPS ETF
SCHP
$16.3B
$336K ﹤0.01%
12,228
-1,572
-11% -$42.4K
42 43
44
45 46

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William Blair & Company's Q1 2019 Portfolio in Review

As of Q1 2019, William Blair & Company held 1,770 positions worth $16.4B, up 20% from $13.7B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair & Company's Q1 2019 filing shows 129 new, 754 increased, 490 reduced and 65 closed positions. Its largest new stake was Western Midstream Partners: 147,267 shares worth $4.62M. The largest sale was TotalEnergies, an estimated $155M.

By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 21% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q1 2019 buy was Western Midstream Partners: 147,267 shares worth $4.62M.
  • William Blair & Company added most to Fiserv Inc in Q1 2019, an estimated $65.4M increase.
  • William Blair & Company's biggest Q1 2019 reduction was TotalEnergies, cutting an estimated $155M.
  • William Blair & Company fully exited MB Financial Corp in Q1 2019, selling an estimated $7.72M.
  • William Blair & Company's ten largest holdings make up 21% of its $16.4B portfolio in Q1 2019.
  • William Blair & Company opened 129 new positions and closed 65 in Q1 2019.
  • William Blair & Company's portfolio value rose 20% quarter-over-quarter to $16.4B.

Based on William Blair & Company's 13F filing for Q1 2019, filed 14 May 2019.