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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
LECO icon
1251
Lincoln Electric
LECO
$15.4B
$223K ﹤0.01%
2,655
-204
-7% -$17.3K
TME icon
1252
Tencent Music
TME
$15.5B
$223K ﹤0.01%
+12,300
New +$196K
VMI icon
1253
Valmont Industries
VMI
$9.53B
$222K ﹤0.01%
+1,704
New +$220K
ASTE icon
1254
Astec Industries
ASTE
$1.01B
$220K ﹤0.01%
3,775
– –
COHU icon
1255
Cohu
COHU
$2.49B
$220K ﹤0.01%
14,903
– –
EMN icon
1256
Eastman Chemical
EMN
$8.46B
$220K ﹤0.01%
+2,899
New +$230K
LVS icon
1257
Las Vegas Sands
LVS
$29.3B
$220K ﹤0.01%
+3,601
New +$212K
BAB icon
1258
Invesco Taxable Municipal Bond ETF
BAB
$1.02B
$219K ﹤0.01%
7,193
– –
BLMN icon
1259
Bloomin' Brands
BLMN
$953M
$219K ﹤0.01%
+10,700
New +$213K
SYRE icon
1260
Spyre Therapeutics
SYRE
$9.18B
$219K ﹤0.01%
1,088
– –
PAGP icon
1261
Plains GP Holdings
PAGP
$4.91B
$218K ﹤0.01%
+8,748
New +$207K
WBD icon
1262
Warner Bros
WBD
$66.8B
$218K ﹤0.01%
8,080
+192
+2% +$5.34K
XNTK icon
1263
State Street SPDR NYSE Technology ETF
XNTK
$2.21B
$218K ﹤0.01%
2,575
+2
+0.1% +$134
DAKT icon
1264
Daktronics
DAKT
$1.04B
$217K ﹤0.01%
23,800
– –
FLOT icon
1265
iShares Floating Rate Bond ETF
FLOT
$10.3B
$217K ﹤0.01%
4,260
+2,519
+145% +$128K
MBB icon
1266
iShares MBS ETF
MBB
$39.1B
$216K ﹤0.01%
2,031
-500
-20% -$52.6K
HCCI
1267
DELISTED
Heritage-Crystal Clean, Inc.
HCCI
$216K ﹤0.01%
7,854
-36,417
-82% -$926K
GLPI icon
1268
Gaming and Leisure Properties
GLPI
$12.8B
$215K ﹤0.01%
+5,571
New +$203K
ASML icon
1269
ASML
ASML
$665B
$214K ﹤0.01%
+1,137
New +$201K
FDL icon
1270
First Trust Morningstar Dividend Leaders Index Fund
FDL
$7.8B
$214K ﹤0.01%
+7,105
New +$206K
SEE
1271
DELISTED
Sealed Air
SEE
$214K ﹤0.01%
+4,643
New +$193K
ASMB icon
1272
Assembly Biosciences
ASMB
$528M
$213K ﹤0.01%
902
+140
+18% +$35.4K
RBBN icon
1273
Ribbon Communications
RBBN
$377M
$213K ﹤0.01%
41,264
-1,000
-2% -$5.36K
BXMT icon
1274
Blackstone Mortgage Trust
BXMT
$2.39B
$212K ﹤0.01%
6,129
-515
-8% -$17.5K
PBA icon
1275
Pembina Pipeline
PBA
$27.8B
$212K ﹤0.01%
+5,762
New +$204K
49 50
51
52 53

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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.