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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $30.3B
1-Year Est. Return 33.75%
This Fund
S&P 500
This Quarter Est. Return
+1.57%
1 Year Est. Return
+33.75%
3 Year Est. Return
+108.55%
5 Year Est. Return
+126.9%
10 Year Est. Return
+788.31%
AUM
$23.4B
AUM Growth
-$452M
Cap. Flow
-$478M
Cap. Flow %
-2.05%
Top 10 Hldgs %
20.73%
Holding
398
New
26
Increased
153
Reduced
172
Closed
41

Top Buys

Rank Stock Value
1
IAA
IAA, Inc. Common Stock
IAA
+$134M
2
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$128M
3
WWE
World Wrestling Entertainment
WWE
+$112M
4
PFPT
Proofpoint, Inc.
PFPT
+$102M
5
PRSP
Perspecta Inc. Common Stock
PRSP
+$97.8M

Top Sells

Rank Stock Value
1
RCI icon
Rogers Communications
RCI
+$201M
2
CSGP icon
CoStar Group
CSGP
+$173M
3
CPRT icon
Copart
CPRT
+$156M
4
GWR
Genesee & Wyoming Inc.
GWR
+$147M
5
DPZ icon
Domino's
DPZ
+$137M

Sector Composition

Rank Sector Weight
1 Technology 20.24%
2 Healthcare 13.8%
3 Consumer Discretionary 13.77%
4 Industrials 13.46%
5 Financials 13.14%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
OGS icon
201
ONE Gas
OGS
$5B
$19.7M 0.08%
204,874
+2,114
+1% +$193K
COR
202
DELISTED
Coresite Realty Corporation
COR
$19.6M 0.08%
161,157
+3,969
+3% +$455K
TXNM
203
TXNM Energy Inc
TXNM
$5.91B
$19.4M 0.08%
372,583
+43,273
+13% +$2.18M
IBKC
204
DELISTED
IBERIABANK Corp
IBKC
$19.3M 0.08%
256,029
+18,523
+8% +$1.37M
CCJ icon
205
Cameco
CCJ
$43B
$19.3M 0.08%
2,033,982
+200,379
+11% +$1.88M
ITGR icon
206
Integer Holdings
ITGR
$4.25B
$19.3M 0.08%
255,499
-49,776
-16% -$3.94M
ROST icon
207
Ross Stores
ROST
$80.8B
$19.3M 0.08%
175,308
+1,175
+0.7% +$124K
JNK icon
208
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.3B
$19.1M 0.08%
175,890
-1,030
-0.6% -$112K
JBTM
209
JBT Marel
JBTM
$6.32B
$19M 0.08%
191,558
+14,482
+8% +$1.6M
CBRL icon
210
Cracker Barrel
CBRL
$1.25B
$19M 0.08%
+117,014
New +$19.7M
PEB icon
211
Pebblebrook Hotel Trust
PEB
$2.01B
$19M 0.08%
684,100
+15,707
+2% +$431K
THG icon
212
Hanover Insurance
THG
$7.73B
$18.7M 0.08%
138,208
-8,227
-6% -$1.08M
LAD icon
213
Lithia Motors
LAD
$8.32B
$18.7M 0.08%
141,115
+7,446
+6% +$951K
SIVB
214
DELISTED
SVB Financial Group
SIVB
$18.6M 0.08%
89,098
+7,520
+9% +$1.58M
VIAV icon
215
Viavi Solutions
VIAV
$9.47B
$18.1M 0.08%
1,295,109
-85,062
-6% -$1.21M
CBPX
216
DELISTED
CONTINENTAL BUILDING PRODUCTS, INC.
CBPX
$17.8M 0.08%
653,340
-3,083
-0.5% -$77.7K
BDC icon
217
Belden
BDC
$5.26B
$17.8M 0.08%
333,787
+34,508
+12% +$1.73M
SSD icon
218
Simpson Manufacturing
SSD
$8.19B
$17.8M 0.08%
256,434
-4,102
-2% -$266K
CWST icon
219
Casella Waste Systems
CWST
$5.89B
$17.8M 0.08%
413,616
-170,845
-29% -$7.4M
CVCO icon
220
Cavco Industries
CVCO
$4.57B
$17.8M 0.08%
92,406
-5,969
-6% -$1.06M
VRNS icon
221
Varonis Systems
VRNS
$4.84B
$17.7M 0.08%
886,125
+35,187
+4% +$782K
BKH icon
222
Black Hills Corp
BKH
$5.59B
$17.6M 0.08%
229,816
+61,889
+37% +$4.82M
AKR icon
223
Acadia Realty Trust
AKR
$2.83B
$17.6M 0.08%
616,209
-39,171
-6% -$1.09M
LUV icon
224
Southwest Airlines
LUV
$22.3B
$17.5M 0.07%
323,892
+1,573
+0.5% +$82.3K
SCI icon
225
Service Corp International
SCI
$11.4B
$17.4M 0.07%
364,879
-714
-0.2% -$33.5K
7 8
9
10 11

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William Blair Investment Management's Q3 2019 Portfolio in Review

As of Q3 2019, William Blair Investment Management held 398 positions worth $23.4B, down 1.9% from $23.8B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair Investment Management's Q3 2019 filing shows 26 new, 153 increased, 172 reduced and 41 closed positions. Its largest new stake was IAA, Inc. Common Stock: 2,969,390 shares worth $124M. The largest sale was Rogers Communications, an estimated $201M.

By sector, the portfolio is most concentrated in Technology at 20% of assets, up from 18% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • William Blair Investment Management's largest Q3 2019 buy was IAA, Inc. Common Stock: 2,969,390 shares worth $124M.
  • William Blair Investment Management added most to State Street SPDR S&P 500 ETF Trust in Q3 2019, an estimated $128M increase.
  • William Blair Investment Management's biggest Q3 2019 reduction was CoStar Group, cutting an estimated $173M.
  • William Blair Investment Management fully exited Rogers Communications in Q3 2019, selling an estimated $201M.
  • William Blair Investment Management's ten largest holdings make up 21% of its $23.4B portfolio in Q3 2019.
  • William Blair Investment Management opened 26 new positions and closed 41 in Q3 2019.
  • William Blair Investment Management's portfolio value fell 1.9% quarter-over-quarter to $23.4B.

Based on William Blair Investment Management's 13F filing for Q3 2019, filed 12 Nov 2019.