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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 | |
|---|---|---|---|---|---|---|
|
MGLN
301
DELISTED
Magellan Health Services, Inc.
MGLN
| $9.98M | 0.03% |
120,503
-2,385
| -2% | -$189K |
|
|
PRMW
302
DELISTED
Primo Water Corporation
PRMW
| $9.92M | 0.03% |
632,475
+20,361
| +3% | +$300K |
|
303
Douglas Emmett
DEI
$1.95B
| $9.63M | 0.03% |
330,031
+13,012
| +4% | +$370K |
|
|
PDCE
304
DELISTED
PDC Energy, Inc.
PDCE
| $9.54M | 0.03% |
464,764
-8,934
| -2% | -$140K |
|
305
WillScot Mobile Mini Holdings
WSC
$4B
| $9.49M | 0.03% |
+409,759
| New | +$8.26M |
|
306
Centene
CNC
$33.1B
| $9.41M | 0.03% |
156,746
-89,102
| -36% | -$5.66M |
|
307
First American
FAF
$7.38B
| $9.4M | 0.03% |
182,016
+57,486
| +46% | +$2.89M |
|
308
Jones Lang LaSalle
JLL
$16.7B
| $9.3M | 0.03% |
62,672
+2,005
| +3% | +$257K |
|
309
WisdomTree India Earnings Fund ETF
EPI
$2.04B
| $9.22M | 0.03% |
315,717
-3,958
| -1% | -$103K |
|
310
iShares MSCI Chile ETF
ECH
$1.03B
| $9.19M | 0.03% |
304,060
-1,149,640
| -79% | -$30.7M |
|
311
OceanFirst Financial
OCFC
$1.85B
| $8.97M | 0.03% |
481,283
-9,514
| -2% | -$156K |
|
312
CNX Resources
CNX
$5.29B
| $8.84M | 0.03% |
818,051
+93,588
| +13% | +$943K |
|
313
Carpenter Technology
CRS
$26.3B
| $8.68M | 0.03% |
298,201
-5,874
| -2% | -$136K |
|
314
Casey's General Stores
CASY
$31B
| $8.25M | 0.03% |
46,177
+7,364
| +19% | +$1.34M |
|
|
PRO
315
DELISTED
PROS Holdings
PRO
| $8.03M | 0.03% |
+158,153
| New | +$6.25M |
|
316
Performance Food Group
PFGC
$16.9B
| $8.02M | 0.03% |
+168,493
| New | +$7.1M |
|
317
Archrock
AROC
$5.84B
| $7.96M | 0.03% |
919,774
-135,528
| -13% | -$989K |
|
318
KB Home
KBH
$3.42B
| $7.92M | 0.03% |
+236,374
| New | +$8.49M |
|
319
Shopify
SHOP
$194B
| $7.8M | 0.03% |
68,930
-9,960
| -13% | -$1.05M |
|
|
PRSP
320
DELISTED
Perspecta Inc. Common Stock
PRSP
| $7.45M | 0.02% |
309,237
-1,282,480
| -81% | -$27.5M |
|
321
Federal Signal
FSS
$7.71B
| $7.12M | 0.02% |
214,733
-59,112
| -22% | -$1.87M |
|
322
Pinduoduo
PDD
$127B
| $7.11M | 0.02% |
+40,039
| New | +$4.79M |
|
323
Banc of California
BANC
$3.1B
| $6.79M | 0.02% |
461,554
-9,070
| -2% | -$119K |
|
|
MNRL
324
DELISTED
Brigham Minerals, Inc. Class A Common Stock
MNRL
| $6.69M | 0.02% |
608,534
-12,002
| -2% | -$124K |
|
325
Cavco Industries
CVCO
$4.6B
| $6.51M | 0.02% |
37,115
-22,014
| -37% | -$4.08M |
|
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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.