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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
-13.3%
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
$13.7B
AUM Growth
-$2.6B
Cap. Flow
-$222M
Cap. Flow %
-1.61%
Top 10 Hldgs %
20.6%
Holding
1,859
New
191
Increased
555
Reduced
650
Closed
205

Top Buys

Rank Stock Value
1
LIN icon
Linde
LIN
+$55.6M
2
EFA icon
iShares MSCI EAFE ETF
EFA
+$22.8M
3
ULTA icon
Ulta Beauty
ULTA
+$22.1M
4
INTU icon
Intuit
INTU
+$22M
5
DIS icon
Walt Disney
DIS
+$21.1M

Top Sells

Rank Stock Value
1
PX
Praxair Inc
PX
+$73.7M
2
RHT
Red Hat Inc
RHT
+$46M
3
ESRX
Express Scripts Holding Company
ESRX
+$45.8M
4
META icon
Meta Platforms (Facebook)
META
+$32.9M
5
P
Everpure Inc
P
+$31.5M

Sector Composition

Rank Sector Weight
1 Technology 20.75%
2 Healthcare 18.42%
3 Financials 12.76%
4 Consumer Discretionary 9.45%
5 Industrials 9.06%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SNY icon
1126
Sanofi
SNY
$104B
$263K ﹤0.01%
6,051
-458
-7% -$20.2K
CSGS
1127
DELISTED
CSG Systems International
CSGS
$262K ﹤0.01%
8,244
-637
-7% -$22.4K
HURN icon
1128
Huron Consulting
HURN
$2.39B
$260K ﹤0.01%
5,065
– –
KEY icon
1129
KeyCorp
KEY
$24.3B
$260K ﹤0.01%
17,618
-12,009
-41% -$211K
USD icon
1130
ProShares Ultra Semiconductors
USD
$2.85B
$260K ﹤0.01%
140,400
– –
ECON icon
1131
Columbia Emerging Markets Consumer ETF
ECON
$333M
$259K ﹤0.01%
12,441
+2,526
+25% +$52.7K
NUE icon
1132
Nucor
NUE
$61.9B
$259K ﹤0.01%
4,991
-74
-1% -$4.37K
PEGI
1133
DELISTED
Pattern Energy Group Inc. Class A
PEGI
$259K ﹤0.01%
13,900
– –
BV icon
1134
BrightView Holdings
BV
$1.02B
$258K ﹤0.01%
+23,860
New +$307K
KBH icon
1135
KB Home
KBH
$3.49B
$257K ﹤0.01%
13,465
-3,700
-22% -$75.9K
TRQ
1136
DELISTED
Turquoise Hill Resources Ltd
TRQ
$256K ﹤0.01%
15,487
+7,553
+95% +$136K
PETS icon
1137
PetMed Express
PETS
$42.1M
$254K ﹤0.01%
+10,941
New +$292K
CMD
1138
DELISTED
Cantel Medical Corporation
CMD
$254K ﹤0.01%
2,612
– –
DLTR icon
1139
Dollar Tree
DLTR
$24.9B
$253K ﹤0.01%
2,804
– –
AZZ icon
1140
AZZ Inc
AZZ
$4.53B
$252K ﹤0.01%
6,235
– –
ICF icon
1141
iShares Select U.S. REIT ETF
ICF
$2.08B
$252K ﹤0.01%
5,268
-1,820
-26% -$90.8K
DISCK
1142
DELISTED
Discovery, Inc. Series C Common Stock
DISCK
$252K ﹤0.01%
10,900
+8,778
+414% +$244K
AGCO icon
1143
AGCO
AGCO
$7.12B
$251K ﹤0.01%
4,505
-15
-0.3% -$847
BWX icon
1144
State Street SPDR Bloomberg International Treasury Bond ETF
BWX
$1.31B
$251K ﹤0.01%
9,083
+33
+0.4% +$895
ACIW icon
1145
ACI Worldwide
ACIW
$5.61B
$250K ﹤0.01%
9,023
-373
-4% -$10.1K
BNDX icon
1146
Vanguard Total International Bond ETF
BNDX
$82.1B
$250K ﹤0.01%
4,607
+353
+8% +$19.3K
CBUS icon
1147
Cibus
CBUS
$143M
$249K ﹤0.01%
481
-573
-54% -$343K
RSPH icon
1148
Invesco S&P 500 Equal Weight Health Care ETF
RSPH
$775M
$249K ﹤0.01%
+14,000
New +$266K
MRO
1149
DELISTED
Marathon Oil Corporation
MRO
$249K ﹤0.01%
17,372
+5,746
+49% +$103K
MDRX
1150
DELISTED
Veradigm Inc. Common Stock
MDRX
$249K ﹤0.01%
25,810
-106,095
-80% -$1.18M
44 45
46
47 48

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William Blair & Company's Q4 2018 Portfolio in Review

As of Q4 2018, William Blair & Company held 1,859 positions worth $13.7B, down 16% from $16.3B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair & Company's Q4 2018 filing shows 191 new, 555 increased, 650 reduced and 205 closed positions. Its largest new stake was Linde: 352,000 shares worth $54.9M. The largest sale was Praxair Inc, an estimated $73.7M.

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

  • William Blair & Company's largest Q4 2018 buy was Linde: 352,000 shares worth $54.9M.
  • William Blair & Company added most to iShares MSCI EAFE ETF in Q4 2018, an estimated $22.8M increase.
  • William Blair & Company's biggest Q4 2018 reduction was Red Hat Inc, cutting an estimated $46M.
  • William Blair & Company fully exited Praxair Inc in Q4 2018, selling an estimated $73.7M.
  • William Blair & Company's ten largest holdings make up 21% of its $13.7B portfolio in Q4 2018.
  • William Blair & Company opened 191 new positions and closed 205 in Q4 2018.
  • William Blair & Company's portfolio value fell 16% quarter-over-quarter to $13.7B.

Based on William Blair & Company's 13F filing for Q4 2018, filed 14 Feb 2019.