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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
-14.81%
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
$20.1B
AUM Growth
-$8.75B
Cap. Flow
-$4.18B
Cap. Flow %
-20.77%
Top 10 Hldgs %
19.04%
Holding
450
New
31
Increased
192
Reduced
174
Closed
46

Top Buys

Rank Stock Value
1
CNI icon
Canadian National Railway
CNI
+$128M
2
WW
WW International
WW
+$107M
3
INGN icon
Inogen
INGN
+$106M
4
TREX icon
Trex
TREX
+$106M
5
SABR icon
Sabre
SABR
+$95.3M

Sector Composition

Rank Sector Weight
1 Technology 16.34%
2 Healthcare 14.5%
3 Financials 13.62%
4 Consumer Discretionary 13.1%
5 Industrials 12.65%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
RAMP icon
201
LiveRamp
RAMP
$2.3B
$18.4M 0.09%
477,013
+10,880
+2% +$493K
CDXS icon
202
Codexis
CDXS
$159M
$18.3M 0.09%
1,095,691
-232,942
-18% -$4.02M
PLOW icon
203
Douglas Dynamics
PLOW
$979M
$18.2M 0.09%
508,417
+112,753
+28% +$4.42M
NBHC icon
204
National Bank Holdings
NBHC
$1.92B
$18.2M 0.09%
588,547
+94,335
+19% +$3.27M
AKR icon
205
Acadia Realty Trust
AKR
$2.83B
$18.1M 0.09%
763,194
-216,408
-22% -$5.95M
SBCF icon
206
Seacoast Banking Corp of Florida
SBCF
$3.42B
$18.1M 0.09%
695,138
+9,933
+1% +$266K
CPE
207
DELISTED
Callon Petroleum Company
CPE
$17.8M 0.09%
273,860
+7,398
+3% +$714K
CIEN icon
208
Ciena
CIEN
$54.9B
$17.7M 0.09%
520,914
+7,636
+1% +$242K
WWW icon
209
Wolverine World Wide
WWW
$1.49B
$17.6M 0.09%
552,655
+12,113
+2% +$413K
SIVB
210
DELISTED
SVB Financial Group
SIVB
$17.6M 0.09%
92,635
+89,100
+2,521% +$21.8M
OEC icon
211
Orion
OEC
$377M
$17.5M 0.09%
691,503
+188,751
+38% +$4.92M
CNC icon
212
Centene
CNC
$32.1B
$17.4M 0.09%
302,220
-666,974
-69% -$44.7M
FNB icon
213
FNB Corp
FNB
$6.8B
$17.4M 0.09%
1,770,332
+34,786
+2% +$404K
ALE
214
DELISTED
Allete
ALE
$17.4M 0.09%
228,373
+3,404
+2% +$263K
VMC icon
215
Vulcan Materials
VMC
$37.3B
$17.4M 0.09%
175,971
-388,360
-69% -$39.4M
NFLX icon
216
Netflix
NFLX
$311B
$17.3M 0.09%
646,700
-753,720
-54% -$22.6M
IBN icon
217
ICICI Bank
IBN
$107B
$17.2M 0.09%
1,672,444
+49,807
+3% +$470K
HIW icon
218
Highwoods Properties
HIW
$3.4B
$17.1M 0.09%
442,998
+7,376
+2% +$319K
PRMW
219
DELISTED
Primo Water Corporation
PRMW
$17.1M 0.09%
1,223,183
+89,799
+8% +$1.38M
MDP
220
DELISTED
Meredith Corporation
MDP
$17.1M 0.09%
329,737
+4,991
+2% +$271K
TXNM
221
TXNM Energy Inc
TXNM
$5.91B
$17.1M 0.09%
+416,430
New +$17.1M
BOOT icon
222
Boot Barn
BOOT
$5.02B
$16.9M 0.08%
992,186
+299,627
+43% +$6.89M
SMTC icon
223
Semtech
SMTC
$12.2B
$16.8M 0.08%
367,268
+5,336
+1% +$254K
BDC icon
224
Belden
BDC
$5.26B
$16.8M 0.08%
401,063
+4,506
+1% +$245K
ADC icon
225
Agree Realty
ADC
$9.13B
$16.7M 0.08%
283,071
-77,924
-22% -$4.45M

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William Blair Investment Management's Q4 2018 Portfolio in Review

As of Q4 2018, William Blair Investment Management held 450 positions worth $20.1B, down 30% from $28.9B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair Investment Management withdrew a net $4.18B in Q4 2018, closing 46 positions and reducing 174 holdings. Its most notable exit was Hexcel, an estimated $187M position sold in full.

By sector, the portfolio is most concentrated in Technology at 16% of assets, down from 17% a quarter earlier, followed by Healthcare and Financials.

Against the trend, William Blair Investment Management opened a new position in Inogen worth $80.2M.

  • William Blair Investment Management's largest Q4 2018 buy was Inogen: 646,263 shares worth $80.2M.
  • William Blair Investment Management added most to Canadian National Railway in Q4 2018, an estimated $128M increase.
  • William Blair Investment Management's biggest Q4 2018 reduction was Suncor Energy, cutting an estimated $195M.
  • William Blair Investment Management fully exited Hexcel in Q4 2018, selling an estimated $187M.
  • William Blair Investment Management's ten largest holdings make up 19% of its $20.1B portfolio in Q4 2018.
  • William Blair Investment Management opened 31 new positions and closed 46 in Q4 2018.
  • William Blair Investment Management's portfolio value fell 30% quarter-over-quarter to $20.1B.

Based on William Blair Investment Management's 13F filing for Q4 2018, filed 13 Feb 2019.