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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $33.3B
1-Year Est. Return 44.76%
This Fund
S&P 500
This Quarter Est. Return
+2.16%
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
$35.5B
AUM Growth
+$3.59B
Cap. Flow
+$3.35B
Cap. Flow %
9.44%
Top 10 Hldgs %
14.72%
Holding
520
New
55
Increased
211
Reduced
159
Closed
89

Top Buys

Rank Stock Value
1
BBBY
Bed Bath & Beyond
BBBY
+$213M
2
SEDG icon
SolarEdge
SEDG
+$182M
3
CHE icon
Chemed
CHE
+$161M
4
PFGC icon
Performance Food Group
PFGC
+$140M
5
PACB icon
Pacific Biosciences
PACB
+$121M

Top Sells

Rank Stock Value
1
GNRC icon
Generac Holdings
GNRC
+$257M
2
AZPN
ASPEN TECHNOLOGY INC
AZPN
+$209M
3
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$205M
4
ZD icon
Ziff Davis
ZD
+$175M
5
BJ icon
BJs Wholesale Club
BJ
+$167M

Sector Composition

Rank Sector Weight
1 Technology 25.42%
2 Healthcare 19.29%
3 Consumer Discretionary 15.58%
4 Industrials 14.33%
5 Financials 8.5%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PRMW
351
DELISTED
Primo Water Corporation
PRMW
$11.8M 0.03%
753,770
+10,198
+1% +$172K
VCEL icon
352
Vericel Corp
VCEL
$2.29B
$11.3M 0.03%
232,476
+3,348
+1% +$173K
TTWO icon
353
Take-Two Interactive
TTWO
$45.4B
$11M 0.03%
71,520
-950
-1% -$154K
HASI icon
354
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$5.37B
$10.7M 0.03%
200,135
+2,888
+1% +$165K
BFLY icon
355
Butterfly Network
BFLY
$2.52B
$10.7M 0.03%
1,023,052
+15,426
+2% +$178K
ROK icon
356
Rockwell Automation
ROK
$50.1B
$9.99M 0.03%
33,984
-14,272
-30% -$4.38M
CNC icon
357
Centene
CNC
$33.1B
$9.25M 0.03%
148,489
+3,407
+2% +$228K
EWZ icon
358
iShares MSCI Brazil ETF
EWZ
$8.57B
$9.04M 0.03%
281,500
-1,400
-0.5% -$51.2K
Z icon
359
Zillow
Z
$7.48B
$9.02M 0.03%
102,298
-1,355
-1% -$137K
JNK icon
360
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.31B
$8.55M 0.02%
78,150
-19,200
-20% -$2.1M
XLF icon
361
State Street Financial Select Sector SPDR ETF
XLF
$59.1B
$7.59M 0.02%
202,270
-61,100
-23% -$2.29M
INNV icon
362
InnovAge Holding
INNV
$1.42B
$7.54M 0.02%
1,140,083
+16,666
+1% +$258K
IWO icon
363
iShares Russell 2000 Growth ETF
IWO
$15B
$7.44M 0.02%
25,330
-2,343
-8% -$704K
ASML icon
364
ASML
ASML
$695B
$7.31M 0.02%
9,803
-1,151
-11% -$905K
EBC icon
365
Eastern Bankshares
EBC
$5.34B
$7.07M 0.02%
+348,413
New +$6.67M
PAR icon
366
PAR Technology
PAR
$741M
$6.41M 0.02%
104,227
+1,766
+2% +$113K
MMYT icon
367
MakeMyTrip
MMYT
$5.67B
$6.38M 0.02%
234,784
-433,497
-65% -$11.7M
NVO
368
Novo Nordisk
NVO
$203B
$5.77M 0.02%
120,126
-1,466
-1% -$70.9K
SHOP icon
369
Shopify
SHOP
$194B
$5.37M 0.02%
39,600
-32,250
-45% -$4.83M
LUV icon
370
Southwest Airlines
LUV
$22B
$4.85M 0.01%
94,374
+20,674
+28% +$1.04M
IWF icon
371
iShares Russell 1000 Growth ETF
IWF
$128B
$3.97M 0.01%
+58,000
New +$4.1M
LFCR icon
372
Lifecore Biomedical
LFCR
$181M
$3.92M 0.01%
425,607
+423,272
+18,127% +$4.61M
VTWO icon
373
Vanguard Russell 2000 ETF
VTWO
$17.4B
$3.56M 0.01%
40,208
– –
NVR icon
374
NVR
NVR
$16.8B
$2.67M 0.01%
558
– –
AEIS icon
375
Advanced Energy
AEIS
$13.5B
$2.64M 0.01%
+30,130
New +$2.82M
13 14
15
16 17

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William Blair Investment Management's Q3 2021 Portfolio in Review

As of Q3 2021, William Blair Investment Management held 520 positions worth $35.5B, up 11% from $31.9B the previous quarter. Its ten largest holdings account for 15% of the portfolio.

William Blair Investment Management deployed $3.35B of net new capital in Q3 2021, opening 55 new positions and adding to 211 existing holdings. Its largest new stake was Bed Bath & Beyond: 3,069,659 shares worth $217M.

By sector, the portfolio is most concentrated in Technology at 25% of assets, down from 26% a quarter earlier, followed by Healthcare and Consumer Discretionary.

On the sell side, the largest reduction was Generac Holdings, an estimated $257M trimmed.

  • William Blair Investment Management's largest Q3 2021 buy was Bed Bath & Beyond: 3,069,659 shares worth $217M.
  • William Blair Investment Management added most to Performance Food Group in Q3 2021, an estimated $140M increase.
  • William Blair Investment Management's biggest Q3 2021 reduction was Generac Holdings, cutting an estimated $257M.
  • William Blair Investment Management fully exited ASPEN TECHNOLOGY INC in Q3 2021, selling an estimated $209M.
  • William Blair Investment Management's ten largest holdings make up 15% of its $35.5B portfolio in Q3 2021.
  • William Blair Investment Management opened 55 new positions and closed 89 in Q3 2021.
  • William Blair Investment Management's portfolio value rose 11% quarter-over-quarter to $35.5B.

Based on William Blair Investment Management's 13F filing for Q3 2021, filed 10 Nov 2021.