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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
RH icon
551
RH
RH
$3.71B
$2.05M 0.01%
19,949
+1,670
+9% +$227K
WRK
552
DELISTED
WestRock Company
WRK
$2.05M 0.01%
53,537
+8,965
+20% +$351K
PDP icon
553
Invesco Dorsey Wright Momentum ETF
PDP
$1.5B
$2.05M 0.01%
35,960
+2,610
+8% +$139K
IXUS icon
554
iShares Core MSCI Total International Stock ETF
IXUS
$60.1B
$2.04M 0.01%
35,165
+32,810
+1,393% +$1.85M
IAU icon
555
iShares Gold Trust
IAU
$67.5B
$2.04M 0.01%
82,409
+4,257
+5% +$106K
HACK icon
556
Amplify Cybersecurity ETF
HACK
$2.9B
$2.03M 0.01%
50,760
-13,077
-20% -$498K
HGV icon
557
Hilton Grand Vacations
HGV
$3.55B
$2.03M 0.01%
65,693
+7,021
+12% +$215K
GBT
558
DELISTED
Global Blood Therapeutics, Inc.
GBT
$2.03M 0.01%
38,298
+31,738
+484% +$1.56M
SLCA
559
DELISTED
U.S. SILICA HOLDINGS, INC.
SLCA
$2.02M 0.01%
116,575
+7,500
+7% +$107K
EXC icon
560
Exelon
EXC
$47B
$2.02M 0.01%
56,548
-43,417
-43% -$1.48M
DTD icon
561
WisdomTree US Total Dividend Fund
DTD
$1.69B
$2.02M 0.01%
42,594
+4
+0% +$183
RGEN icon
562
Repligen
RGEN
$9.25B
$2.01M 0.01%
34,095
-345
-1% -$19.8K
MKL icon
563
Markel Group
MKL
$23.2B
$2.01M 0.01%
2,019
+227
+13% +$231K
WWD icon
564
Woodward
WWD
$21.4B
$1.96M 0.01%
20,672
– –
XPO icon
565
XPO
XPO
$23.7B
$1.96M 0.01%
105,354
-3,195
-3% -$61.3K
XEL icon
566
Xcel Energy
XEL
$48.8B
$1.96M 0.01%
34,773
+1,460
+4% +$77.7K
AFL icon
567
Aflac
AFL
$63.4B
$1.95M 0.01%
39,039
+4,753
+14% +$229K
BURL icon
568
Burlington
BURL
$23.2B
$1.94M 0.01%
12,392
+2,382
+24% +$384K
BPL
569
DELISTED
Buckeye Partners, L.P.
BPL
$1.94M 0.01%
57,092
+4,354
+8% +$141K
IFF icon
570
International Flavors & Fragrances
IFF
$21.9B
$1.94M 0.01%
15,072
-6,926
-31% -$918K
GPC icon
571
Genuine Parts
GPC
$18.7B
$1.94M 0.01%
17,300
+1,627
+10% +$168K
TMX
572
DELISTED
Terminix Global Holdings, Inc.
TMX
$1.93M 0.01%
41,360
-829
-2% -$34.7K
APC
573
DELISTED
Anadarko Petroleum
APC
$1.92M 0.01%
42,263
+73
+0.2% +$3.31K
STIM icon
574
Neuronetics
STIM
$166M
$1.9M 0.01%
124,868
-1,652
-1% -$27.3K
BSX icon
575
Boston Scientific
BSX
$71.5B
$1.9M 0.01%
49,463
+14,682
+42% +$561K
21 22
23
24 25

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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.