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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
-13.3%
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
$13.7B
AUM Growth
-$2.6B
Cap. Flow
-$222M
Cap. Flow %
-1.61%
Top 10 Hldgs %
20.6%
Holding
1,859
New
191
Increased
555
Reduced
650
Closed
205

Top Buys

Rank Stock Value
1
LIN icon
Linde
LIN
+$55.6M
2
EFA icon
iShares MSCI EAFE ETF
EFA
+$22.8M
3
ULTA icon
Ulta Beauty
ULTA
+$22.1M
4
INTU icon
Intuit
INTU
+$22M
5
DIS icon
Walt Disney
DIS
+$21.1M

Top Sells

Rank Stock Value
1
PX
Praxair Inc
PX
+$73.7M
2
RHT
Red Hat Inc
RHT
+$46M
3
ESRX
Express Scripts Holding Company
ESRX
+$45.8M
4
META icon
Meta Platforms (Facebook)
META
+$32.9M
5
P
Everpure Inc
P
+$31.5M

Sector Composition

Rank Sector Weight
1 Technology 20.75%
2 Healthcare 18.42%
3 Financials 12.76%
4 Consumer Discretionary 9.45%
5 Industrials 9.06%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
XNTK icon
1201
State Street SPDR NYSE Technology ETF
XNTK
$2.19B
$218K ﹤0.01%
2,573
+212
+9% +$17.4K
DAKT icon
1202
Daktronics
DAKT
$1.05B
$217K ﹤0.01%
23,800
– –
REZI icon
1203
Resideo Technologies
REZI
$3.95B
$216K ﹤0.01%
+10,516
New +$224K
BAB icon
1204
Invesco Taxable Municipal Bond ETF
BAB
$1.02B
$214K ﹤0.01%
+7,193
New +$208K
AMN icon
1205
AMN Healthcare
AMN
$1.19B
$212K ﹤0.01%
3,738
-6,666
-64% -$374K
BXMT icon
1206
Blackstone Mortgage Trust
BXMT
$2.33B
$212K ﹤0.01%
+6,644
New +$225K
TOL icon
1207
Toll Brothers
TOL
$14.1B
$212K ﹤0.01%
6,425
-1,500
-19% -$48.2K
MPT
1208
Medical Properties Trust
MPT
$2.75B
$211K ﹤0.01%
13,093
-4,521
-26% -$71.5K
SPHD icon
1209
Invesco S&P 500 High Dividend Low Volatility ETF
SPHD
$3.36B
$211K ﹤0.01%
+5,532
New +$223K
TRN icon
1210
Trinity Industries
TRN
$2.47B
$211K ﹤0.01%
10,264
-10,289
-50% -$237K
FWONA icon
1211
Liberty Media Series A
FWONA
$22.9B
$210K ﹤0.01%
7,137
+5
+0.1% +$148
PIE icon
1212
Invesco Dorsey Wright Emerging Markets Momentum ETF
PIE
$248M
$210K ﹤0.01%
+13,490
New +$219K
ONC
1213
BeOne Medicines Ltd
ONC
$36.7B
$209K ﹤0.01%
1,490
– –
ASMB icon
1214
Assembly Biosciences
ASMB
$524M
$207K ﹤0.01%
762
-45
-6% -$13K
BKLN icon
1215
Invesco Senior Loan ETF
BKLN
$6.81B
$207K ﹤0.01%
+9,486
New +$216K
AYI icon
1216
Acuity Brands
AYI
$10.7B
$206K ﹤0.01%
1,790
+340
+23% +$42K
AMRB
1217
DELISTED
American River Bankshares
AMRB
$206K ﹤0.01%
14,776
-80
-0.5% -$1.17K
IRIX icon
1218
IRIDEX
IRIX
$14.6M
$205K ﹤0.01%
43,600
– –
OTTR icon
1219
Otter Tail
OTTR
$3.91B
$205K ﹤0.01%
+4,131
New +$197K
RBBN icon
1220
Ribbon Communications
RBBN
$376M
$204K ﹤0.01%
42,264
-4,359
-9% -$25.3K
SYRE icon
1221
Spyre Therapeutics
SYRE
$9.12B
$204K ﹤0.01%
1,088
– –
BLUE
1222
DELISTED
bluebird bio
BLUE
$203K ﹤0.01%
158
+14
+10% +$21.5K
ROBO icon
1223
ROBO Global Robotics & Automation Index ETF
ROBO
$2.07B
$203K ﹤0.01%
6,237
-2,867
-31% -$104K
NGHC
1224
DELISTED
National General Holdings Corp
NGHC
$203K ﹤0.01%
8,391
+299
+4% +$7.61K
ELS icon
1225
Equity Lifestyle Properties
ELS
$12.5B
$202K ﹤0.01%
+4,158
New +$201K
47 48
49
50 51

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William Blair & Company's Q4 2018 Portfolio in Review

As of Q4 2018, William Blair & Company held 1,859 positions worth $13.7B, down 16% from $16.3B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair & Company's Q4 2018 filing shows 191 new, 555 increased, 650 reduced and 205 closed positions. Its largest new stake was Linde: 352,000 shares worth $54.9M. The largest sale was Praxair Inc, an estimated $73.7M.

By sector, the portfolio is most concentrated in Technology at 21% of assets, down from 21% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2018 buy was Linde: 352,000 shares worth $54.9M.
  • William Blair & Company added most to iShares MSCI EAFE ETF in Q4 2018, an estimated $22.8M increase.
  • William Blair & Company's biggest Q4 2018 reduction was Red Hat Inc, cutting an estimated $46M.
  • William Blair & Company fully exited Praxair Inc in Q4 2018, selling an estimated $73.7M.
  • William Blair & Company's ten largest holdings make up 21% of its $13.7B portfolio in Q4 2018.
  • William Blair & Company opened 191 new positions and closed 205 in Q4 2018.
  • William Blair & Company's portfolio value fell 16% quarter-over-quarter to $13.7B.

Based on William Blair & Company's 13F filing for Q4 2018, filed 14 Feb 2019.