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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $33.3B
1-Year Est. Return 44.76%
This Fund
S&P 500
This Quarter Est. Return
+7.86%
1 Year Est. Return
+44.76%
3 Year Est. Return
+140.8%
5 Year Est. Return
+166.51%
10 Year Est. Return
+978.6%
AUM
$28.9B
AUM Growth
+$2.01B
Cap. Flow
+$420M
Cap. Flow %
1.46%
Top 10 Hldgs %
17.78%
Holding
509
New
33
Increased
212
Reduced
167
Closed
90

Top Buys

Rank Stock Value
1
RCI icon
Rogers Communications
RCI
+$228M
2
BN icon
Brookfield
BN
+$96.9M
3
EEFT icon
Euronet Worldwide
EEFT
+$92.3M
4
TFX icon
Teleflex
TFX
+$84.9M
5
P
Everpure Inc
P
+$79.7M

Top Sells

Rank Stock Value
1
YUMC icon
Yum China
YUMC
+$188M
2
CRL icon
Charles River Laboratories
CRL
+$188M
3
FND icon
Floor & Decor
FND
+$129M
4
TWOU
2U Inc
TWOU
+$87.5M
5
MTN icon
Vail Resorts
MTN
+$71.8M

Sector Composition

Rank Sector Weight
1 Technology 16.83%
2 Healthcare 15.47%
3 Industrials 13.49%
4 Consumer Discretionary 13%
5 Financials 12.64%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
KNX icon
401
Knight Transportation
KNX
$11.2B
$951K ﹤0.01%
+27,574
New +$965K
MMS icon
402
Maximus
MMS
$2.84B
$948K ﹤0.01%
14,566
+921
+7% +$59.8K
CHDN icon
403
Churchill Downs
CHDN
$6.18B
$944K ﹤0.01%
20,406
+2,190
+12% +$104K
HOLX
404
DELISTED
Hologic
HOLX
$932K ﹤0.01%
22,747
+1,444
+7% +$58.4K
STLD icon
405
Steel Dynamics
STLD
$37.8B
$915K ﹤0.01%
20,237
+1,281
+7% +$59K
CXO
406
DELISTED
CONCHO RESOURCES INC.
CXO
$889K ﹤0.01%
5,823
– –
CPT icon
407
Camden Property Trust
CPT
$10.9B
$877K ﹤0.01%
9,370
+594
+7% +$55.2K
ELS icon
408
Equity Lifestyle Properties
ELS
$12.4B
$835K ﹤0.01%
17,308
+1,078
+7% +$50.6K
PTEN icon
409
Patterson-UTI
PTEN
$4.22B
$830K ﹤0.01%
48,536
+3,070
+7% +$52.7K
AFG icon
410
American Financial Group
AFG
$12B
$801K ﹤0.01%
7,219
+458
+7% +$51K
IEX icon
411
IDEX
IEX
$17.5B
$800K ﹤0.01%
5,308
-1,840
-26% -$274K
INGR icon
412
Ingredion
INGR
$6.6B
$760K ﹤0.01%
7,245
+459
+7% +$46.9K
ETFC
413
DELISTED
E*Trade Financial Corporation
ETFC
$703K ﹤0.01%
13,414
-6,585
-33% -$386K
FAF icon
414
First American
FAF
$7.32B
$622K ﹤0.01%
12,056
+765
+7% +$41.9K
IWP icon
415
iShares Russell Mid-Cap Growth ETF
IWP
$20.8B
$472K ﹤0.01%
6,960
+2,000
+40% +$133K
XLV icon
416
State Street Health Care Select Sector SPDR ETF
XLV
$43.9B
$377K ﹤0.01%
3,957
– –
EMB icon
417
iShares JPMorgan USD Emerging Markets Bond ETF
EMB
$14.9B
$65K ﹤0.01%
600
– –
ELD icon
418
WisdomTree Emerging Markets Local Debt Fund
ELD
$143M
$62K ﹤0.01%
1,900
– –
IWN icon
419
iShares Russell 2000 Value ETF
IWN
$14.6B
$50K ﹤0.01%
378
-49,093
-99% -$6.61M
ACHC icon
420
Acadia Healthcare
ACHC
$2.9B
– –
-7,960
Closed -$326K
AGRO icon
421
Adecoagro
AGRO
$1.36B
– –
-94,949
Closed -$755K
AKAM icon
422
Akamai
AKAM
$16.8B
– –
-910,694
Closed -$66.7M
AMN icon
423
AMN Healthcare
AMN
$1.28B
– –
-5,780
Closed -$339K
APOG icon
424
Apogee Enterprises
APOG
$904M
– –
-6,890
Closed -$332K
ARCO icon
425
Arcos Dorados Holdings
ARCO
$1.67B
– –
-145,226
Closed -$982K
15 16
17
18 19

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William Blair Investment Management's Q3 2018 Portfolio in Review

As of Q3 2018, William Blair Investment Management held 509 positions worth $28.9B, up 7.5% from $26.9B the previous quarter. Its ten largest holdings account for 18% of the portfolio.

William Blair Investment Management's Q3 2018 filing shows 33 new, 212 increased, 167 reduced and 90 closed positions. Its largest new stake was Rogers Communications: 4,461,925 shares worth $229M. The largest sale was Yum China, an estimated $188M.

By sector, the portfolio is most concentrated in Technology at 17% of assets, up from 15% a quarter earlier, followed by Healthcare and Industrials.

  • William Blair Investment Management's largest Q3 2018 buy was Rogers Communications: 4,461,925 shares worth $229M.
  • William Blair Investment Management added most to Brookfield in Q3 2018, an estimated $96.9M increase.
  • William Blair Investment Management's biggest Q3 2018 reduction was Vail Resorts, cutting an estimated $71.8M.
  • William Blair Investment Management fully exited Yum China in Q3 2018, selling an estimated $188M.
  • William Blair Investment Management's ten largest holdings make up 18% of its $28.9B portfolio in Q3 2018.
  • William Blair Investment Management opened 33 new positions and closed 90 in Q3 2018.
  • William Blair Investment Management's portfolio value rose 7.5% quarter-over-quarter to $28.9B.

Based on William Blair Investment Management's 13F filing for Q3 2018, filed 13 Nov 2018.