We are live on
!
Find out more
William Blair Investment Management Portfolio holdings
AUM
$33.3B
1-Year Est. Return
44.76%
This Fund
S&P 500
This Quarter
Est. Return
+25.48%
1 Year Est. Return
+44.76%
3 Year Est. Return
+140.8%
5 Year Est. Return
+166.51%
10 Year Est. Return
+978.6%
AUM
$30B
AUM Growth
+$4.37B
(+17%)
Cap. Flow
-$974M
Cap. Flow
% of AUM
-3.24%
Top 10 Holdings %
Top 10 Hldgs %
17.75%
Holding
375
New
32
Increased
99
Reduced
224
Closed
19
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Bio-Techne
TECH
|
+$212M |
| 2 |
10x Genomics
TXG
|
+$186M |
| 3 |
TMX
Terminix Global Holdings, Inc.
TMX
|
+$126M |
| 4 |
Merit Medical Systems
MMSI
|
+$125M |
| 5 |
ZEN
ZENDESK INC
ZEN
|
+$121M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
iRhythm Holdings
IRTC
|
+$255M |
| 2 |
EXAS
Exact Sciences
EXAS
|
+$246M |
| 3 |
TransUnion
TRU
|
+$166M |
| 4 |
Brookfield
BN
|
+$112M |
| 5 |
TSMC
TSM
|
+$104M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 26.72% |
| 2 | Healthcare | 19.58% |
| 3 | Industrials | 13.65% |
| 4 | Consumer Discretionary | 13.62% |
| 5 | Financials | 6.72% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
326
Nexstar Media Group
NXST
$5.7B
| $6.46M | 0.02% |
+59,192
| New | +$5.78M |
|
|
HHR
327
DELISTED
HeadHunter Group PLC American Depositary Shares
HHR
| $6.35M | 0.02% |
+210,048
| New | +$5.36M |
|
328
Certara
CERT
$1.22B
| $6.15M | 0.02% |
+182,336
| New | +$6.68M |
|
329
ASML
ASML
$695B
| $5.89M | 0.02% |
12,083
+1,137
| +10% | +$478K |
|
|
CHX
330
DELISTED
ChampionX
CHX
| $5.76M | 0.02% |
+376,234
| New | +$4.18M |
|
331
Harmony Biosciences
HRMY
$2.32B
| $5.57M | 0.02% |
154,012
-129,076
| -46% | -$5.21M |
|
332
HF Sinclair
DINO
$15.6B
| $5.14M | 0.02% |
198,965
-3,931
| -2% | -$89K |
|
333
John Wiley & Sons Class A
WLY
$2.53B
| $5.1M | 0.02% |
+111,653
| New | +$4.04M |
|
334
Semtech
SMTC
$13B
| $5.01M | 0.02% |
69,444
-47,486
| -41% | -$3.03M |
|
335
Alamo Group
ALG
$2.01B
| $4.77M | 0.02% |
+34,608
| New | +$4.48M |
|
336
Cactus
WHD
$5.8B
| $4.7M | 0.02% |
180,423
-36,817
| -17% | -$834K |
|
337
ICICI Bank
IBN
$107B
| $4.27M | 0.01% |
287,374
-11,889
| -4% | -$149K |
|
|
IPG
338
DELISTED
Interpublic Group of Companies
IPG
| $4.16M | 0.01% |
176,963
-45,541
| -20% | -$955K |
|
|
NVO
339
Novo Nordisk
NVO
$203B
| $3.99M | 0.01% |
114,314
-5,200
| -4% | -$180K |
|
340
NetEase
NTES
$79.5B
| $3.63M | 0.01% |
37,905
-9,890
| -21% | -$887K |
|
341
Vanguard Russell 2000 ETF
VTWO
$17.4B
| $3.18M | 0.01% |
40,208
| – | – |
|
342
Alibaba
BABA
$300B
| $2.89M | 0.01% |
12,405
-1,961
| -14% | -$544K |
|
343
NXP Semiconductors
NXPI
$58.9B
| $2.84M | 0.01% |
17,868
-2,090
| -10% | -$308K |
|
344
State Street Utilities Select Sector SPDR ETF
XLU
$22.8B
| $2.84M | 0.01% |
90,480
-8,600
| -9% | -$272K |
|
345
NVR
NVR
$16.8B
| $2.79M | 0.01% |
683
-2,004
| -75% | -$8.33M |
|
346
Ryanair
RYAAY
$30.8B
| $2.35M | 0.01% |
53,295
-2,475
| -4% | -$97.1K |
|
347
CarMax
KMX
$8.33B
| $2.28M | 0.01% |
24,133
+2,241
| +10% | +$210K |
|
348
iShares MSCI Brazil ETF
EWZ
$8.57B
| $2.17M | 0.01% |
58,400
-27,700
| -32% | -$893K |
|
349
Donaldson
DCI
$11.2B
| $2.06M | 0.01% |
36,849
-5,070
| -12% | -$268K |
|
350
iShares Russell 2000 Growth ETF
IWO
$15B
| $1.79M | 0.01% |
6,257
-736
| -11% | -$188K |
|
Similar funds
GAM
VIA
William Blair Investment Management's Q4 2020 Portfolio in Review
As of Q4 2020, William Blair Investment Management held 375 positions worth $30B, up 17% from $25.7B the previous quarter. Its ten largest holdings account for 18% of the portfolio.
William Blair Investment Management withdrew a net $974M in Q4 2020, closing 19 positions and reducing 224 holdings. Its most notable exit was iRhythm Holdings, an estimated $255M position sold in full.
By sector, the portfolio is most concentrated in Technology at 27% of assets, up from 26% a quarter earlier, followed by Healthcare and Industrials.
Against the trend, William Blair Investment Management opened a new position in Bio-Techne worth $232M.
- William Blair Investment Management's largest Q4 2020 buy was Bio-Techne: 2,923,168 shares worth $232M.
- William Blair Investment Management added most to Terminix Global Holdings, Inc. in Q4 2020, an estimated $126M increase.
- William Blair Investment Management's biggest Q4 2020 reduction was Exact Sciences, cutting an estimated $246M.
- William Blair Investment Management fully exited iRhythm Holdings in Q4 2020, selling an estimated $255M.
- William Blair Investment Management's ten largest holdings make up 18% of its $30B portfolio in Q4 2020.
- William Blair Investment Management opened 32 new positions and closed 19 in Q4 2020.
- William Blair Investment Management's portfolio value rose 17% quarter-over-quarter to $30B.
Based on William Blair Investment Management's 13F filing for Q4 2020, filed 9 Feb 2021.