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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
MINT icon
926
PIMCO Enhanced Short Maturity Active Exchange-Traded Fund
MINT
$17B
$554K ﹤0.01%
5,452
-3,377
-38% -$342K
FLIR
927
DELISTED
FLIR Systems, Inc. (DE) Common Stock
FLIR
$553K ﹤0.01%
11,631
+96
+0.8% +$4.64K
UNG icon
928
United States Natural Gas Fund
UNG
$455M
$552K ﹤0.01%
5,881
-41
-0.7% -$4.1K
VV icon
929
Vanguard Morningstar Large-Cap ETF
VV
$54.3B
$550K ﹤0.01%
4,239
– –
RBC icon
930
RBC Bearings
RBC
$18B
$549K ﹤0.01%
4,318
-2,677
-38% -$360K
TILT icon
931
FlexShares Morningstar US Market Factors Tilt Index Fund
TILT
$2.26B
$548K ﹤0.01%
4,823
-2,789
-37% -$307K
APU
932
DELISTED
AmeriGas Partners, L.P.
APU
$547K ﹤0.01%
17,727
-7,717
-30% -$226K
APPN icon
933
Appian
APPN
$2.54B
$545K ﹤0.01%
15,842
+2,250
+17% +$76K
CRSP icon
934
CRISPR Therapeutics
CRSP
$5.17B
$544K ﹤0.01%
15,235
+100
+0.7% +$3.46K
LH icon
935
Labcorp
LH
$25.9B
$542K ﹤0.01%
4,123
-95
-2% -$11.7K
BRKL
936
DELISTED
Brookline Bancorp
BRKL
$541K ﹤0.01%
37,556
-1,600
-4% -$24K
ITGR icon
937
Integer Holdings
ITGR
$4.26B
$539K ﹤0.01%
7,152
– –
CY
938
DELISTED
Cypress Semiconductor
CY
$539K ﹤0.01%
36,154
-12,216
-25% -$177K
EWBC icon
939
East-West Bancorp
EWBC
$18B
$536K ﹤0.01%
11,183
-159
-1% -$8.12K
CTLT
940
DELISTED
CATALENT, INC.
CTLT
$536K ﹤0.01%
13,193
+1,770
+15% +$69.2K
URTH icon
941
iShares MSCI World ETF
URTH
$8.27B
$533K ﹤0.01%
6,007
+815
+16% +$69.7K
GBDC icon
942
Golub Capital BDC
GBDC
$3.42B
$530K ﹤0.01%
29,745
+2,812
+10% +$49.5K
SLF icon
943
Sun Life Financial
SLF
$45.4B
$527K ﹤0.01%
13,723
-2,401
-15% -$88.1K
VYMI icon
944
Vanguard International High Dividend Yield ETF
VYMI
$20.9B
$525K ﹤0.01%
7,614
+165
+2% +$9.92K
ESGD icon
945
iShares ESG Aware MSCI EAFE ETF
ESGD
$12.3B
$524K ﹤0.01%
8,288
+986
+14% +$60.5K
OHI icon
946
Omega Healthcare
OHI
$14.7B
$522K ﹤0.01%
13,684
-10,093
-42% -$374K
UBS icon
947
UBS Group
UBS
$176B
$522K ﹤0.01%
43,115
-220,881
-84% -$2.8M
MPWR icon
948
Monolithic Power Systems
MPWR
$68.9B
$521K ﹤0.01%
3,842
+962
+33% +$126K
INFY icon
949
Infosys
INFY
$50.7B
$520K ﹤0.01%
47,569
+276
+0.6% +$2.92K
A icon
950
Agilent Technologies
A
$41.2B
$517K ﹤0.01%
6,429
+572
+10% +$43.4K
36 37
38
39 40

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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.