We are live on ! Find out more
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
AVLR
51
DELISTED
Avalara, Inc.
AVLR
$217M 0.61%
1,243,659
-18,287
-1% -$3.14M
BURL icon
52
Burlington
BURL
$22.3B
$211M 0.6%
745,753
+6,654
+0.9% +$2.13M
ALRM icon
53
Alarm.com
ALRM
$2.71B
$209M 0.59%
2,672,781
+53,162
+2% +$4.4M
INSP icon
54
Inspire Medical Systems
INSP
$1.69B
$209M 0.59%
895,976
+134,501
+18% +$28.1M
HALO icon
55
Halozyme
HALO
$11.6B
$203M 0.57%
4,996,708
+114,222
+2% +$4.78M
HDB icon
56
HDFC Bank
HDB
$119B
$203M 0.57%
5,546,608
+233,308
+4% +$8.65M
RVLV icon
57
Revolve Group
RVLV
$1.69B
$202M 0.57%
3,278,058
+623,091
+23% +$40.6M
RBA icon
58
RB Global
RBA
$16B
$200M 0.56%
3,247,206
-676,101
-17% -$41.3M
CABO icon
59
Cable One
CABO
$196M
$199M 0.56%
110,017
+2,644
+2% +$5.18M
ENTG icon
60
Entegris
ENTG
$24.1B
$197M 0.56%
1,566,915
+44,549
+3% +$5.37M
CRM icon
61
Salesforce
CRM
$157B
$197M 0.55%
724,839
+21,745
+3% +$5.52M
LGND icon
62
Ligand Pharmaceuticals
LGND
$5.84B
$192M 0.54%
2,205,633
+207,570
+10% +$16.1M
VCYT icon
63
Veracyte
VCYT
$3.69B
$186M 0.52%
3,996,212
-42,629
-1% -$1.86M
PEN icon
64
Penumbra
PEN
$12.8B
$182M 0.51%
681,922
-8,778
-1% -$2.36M
FSV icon
65
FirstService
FSV
$6.19B
$179M 0.5%
991,627
-36,229
-4% -$6.7M
SEDG icon
66
SolarEdge
SEDG
$2.01B
$177M 0.5%
+668,168
New +$182M
HELE icon
67
Helen of Troy
HELE
$694M
$177M 0.5%
786,289
+15,931
+2% +$3.65M
BPMC
68
DELISTED
Blueprint Medicines
BPMC
$177M 0.5%
1,717,164
+681,246
+66% +$63.4M
UNH icon
69
UnitedHealth
UNH
$363B
$173M 0.49%
442,507
-31,496
-7% -$13M
FCFS icon
70
FirstCash
FCFS
$9.13B
$170M 0.48%
1,947,346
-11,176
-0.6% -$924K
ADBE icon
71
Adobe
ADBE
$102B
$168M 0.47%
291,367
-12,914
-4% -$8.13M
NATI
72
DELISTED
National Instruments Corp
NATI
$168M 0.47%
4,274,364
+77,748
+2% +$3.25M
GDDY icon
73
GoDaddy
GDDY
$11.4B
$167M 0.47%
2,389,593
-115,625
-5% -$8.95M
LOPE icon
74
Grand Canyon Education
LOPE
$3.7B
$166M 0.47%
1,889,011
-123,443
-6% -$11M
PFGC icon
75
Performance Food Group
PFGC
$17.2B
$165M 0.47%
3,548,519
+3,045,319
+605% +$140M
1 2
3
4 5

Similar funds

BAMCO Inc
BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return
GAM
Gotham Asset Management New York $32.7B AUM 27.65% 1-Year Est. Return
Kayne Anderson Rudnick Investment Management
Kayne Anderson Rudnick Investment Management Los Angeles, California $34B AUM 6.31% 1-Year Est. Return
Hotchkis & Wiley Capital Management
Hotchkis & Wiley Capital Management Los Angeles, California $32.4B AUM 17.21% 1-Year Est. Return
Public Sector Pension Investment Board (PSP Investments)
Public Sector Pension Investment Board (PSP Investments) Montreal, Quebec, Canada $32.1B AUM 31.84% 1-Year Est. Return
VIA
Vanguard Investments Australia Victoria, Australia $34.6B AUM
Chevy Chase Trust
Chevy Chase Trust Bethesda, Maryland $34.7B AUM 29.45% 1-Year Est. Return
Treasurer of the State of North Carolina
Treasurer of the State of North Carolina Raleigh, North Carolina $31.8B AUM 28.93% 1-Year Est. Return

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.