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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
LSTR icon
476
Landstar System
LSTR
$6.21B
$2.81M 0.02%
25,736
-5,640
-18% -$594K
MPC icon
477
Marathon Petroleum
MPC
$83.7B
$2.81M 0.02%
47,039
+51
+0.1% +$3.21K
DNKN
478
DELISTED
Dunkin' Brands Group, Inc.
DNKN
$2.79M 0.02%
37,143
-997
-3% -$69.8K
MFC icon
479
Manulife Financial
MFC
$73.5B
$2.77M 0.02%
163,842
-3,208
-2% -$52.2K
LMNX
480
DELISTED
Luminex Corp
LMNX
$2.76M 0.02%
120,050
-17,532
-13% -$440K
EWJ icon
481
iShares MSCI Japan ETF
EWJ
$23B
$2.75M 0.02%
50,269
-953
-2% -$51.3K
GWR
482
DELISTED
Genesee & Wyoming Inc.
GWR
$2.75M 0.02%
31,552
-2,102
-6% -$170K
AMAT icon
483
Applied Materials
AMAT
$428B
$2.75M 0.02%
69,233
-2,811
-4% -$107K
LHCG
484
DELISTED
LHC Group LLC
LHCG
$2.73M 0.02%
24,657
+1,740
+8% +$186K
CONE
485
DELISTED
CyrusOne Inc Common Stock
CONE
$2.71M 0.02%
51,763
+13,997
+37% +$732K
YUMC icon
486
Yum China
YUMC
$16.3B
$2.7M 0.02%
60,107
-2,975
-5% -$117K
WM icon
487
Waste Management
WM
$91B
$2.68M 0.02%
25,791
+3,610
+16% +$352K
CDK
488
DELISTED
CDK Global, Inc.
CDK
$2.68M 0.02%
45,571
-5,953
-12% -$325K
MIDD icon
489
Middleby
MIDD
$6.08B
$2.66M 0.02%
20,488
-284
-1% -$34.1K
EPAM icon
490
EPAM Systems
EPAM
$5.03B
$2.66M 0.02%
15,724
+3,404
+28% +$510K
MNST icon
491
Monster Beverage
MNST
$88.5B
$2.59M 0.02%
38,776
-206
-0.5% -$5.87K
PFF icon
492
iShares Preferred and Income Securities ETF
PFF
$13.3B
$2.58M 0.02%
70,683
-2,269
-3% -$81.5K
HBAN icon
493
Huntington Bancshares
HBAN
$35.5B
$2.58M 0.02%
203,589
-22,879
-10% -$307K
GKOS icon
494
Glaukos
GKOS
$10.6B
$2.58M 0.02%
32,853
+2,838
+9% +$189K
SPDW icon
495
State Street SPDR Portfolio Developed World ex-US ETF
SPDW
$41.6B
$2.56M 0.02%
82,028
+4,465
+6% +$127K
BBY icon
496
Best Buy
BBY
$17.3B
$2.54M 0.02%
35,793
+2,008
+6% +$125K
CVET
497
DELISTED
Covetrus, Inc. Common Stock
CVET
$2.54M 0.02%
+79,823
New +$2.83M
BOTZ icon
498
Global X Robotics & Artificial Intelligence ETF
BOTZ
$3.51B
$2.54M 0.02%
126,260
+94,558
+298% +$1.79M
HDV
499
iShares Core High Dividend ETF
HDV
$14.9B
$2.5M 0.02%
134,195
+40,495
+43% +$727K
MTD icon
500
Mettler-Toledo International
MTD
$28.6B
$2.48M 0.02%
3,436
+518
+18% +$337K
18 19
20
21 22

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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.