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
AIN icon
126
Albany International
AIN
$1.81B
$69.6M 0.2%
905,081
+558,295
+161% +$44.9M
SPB icon
127
Spectrum Brands
SPB
$2.08B
$68.7M 0.19%
718,583
+498,978
+227% +$42.4M
VRRM icon
128
Verra Mobility
VRRM
$708M
$68.7M 0.19%
4,560,675
-34,546
-0.8% -$528K
ACH
129
Accendra Health
ACH
$87.7M
$67.6M 0.19%
2,160,292
+1,152,114
+114% +$45.3M
LNTH icon
130
Lantheus
LNTH
$6.59B
$67.6M 0.19%
2,631,246
+2,625,646
+46,887% +$68.6M
WDAY icon
131
Workday
WDAY
$43.3B
$67.5M 0.19%
270,102
-10,010
-4% -$2.48M
FTV icon
132
Fortive
FTV
$18.4B
$66.2M 0.19%
1,245,404
-44,841
-3% -$2.45M
TMO icon
133
Thermo Fisher Scientific
TMO
$222B
$65.2M 0.18%
114,071
-1,137
-1% -$624K
BOOT icon
134
Boot Barn
BOOT
$4.97B
$65.1M 0.18%
732,211
-87,064
-11% -$7.5M
LRCX icon
135
Lam Research
LRCX
$422B
$64.6M 0.18%
1,134,260
-285,890
-20% -$17.4M
ALGN icon
136
Align Technology
ALGN
$12.3B
$64.5M 0.18%
96,902
-1,188
-1% -$807K
BDC icon
137
Belden
BDC
$5.36B
$64.3M 0.18%
1,103,981
+1,084,056
+5,441% +$58.1M
TPH
138
DELISTED
Tri Pointe Homes
TPH
$61.8M 0.17%
2,938,781
+2,933,091
+51,548% +$66.1M
CWST icon
139
Casella Waste Systems
CWST
$5.77B
$59.7M 0.17%
786,428
+8,660
+1% +$610K
OXM icon
140
Oxford Industries
OXM
$545M
$58.7M 0.17%
651,027
+649,712
+49,408% +$59.1M
PACW
141
DELISTED
PacWest Bancorp
PACW
$58.4M 0.16%
1,287,810
+879,754
+216% +$36.5M
ATVI
142
DELISTED
Activision Blizzard
ATVI
$58M 0.16%
750,056
-133,212
-15% -$11.1M
ZIP icon
143
ZipRecruiter
ZIP
$369M
$58M 0.16%
+2,102,216
New +$54.4M
CNOB icon
144
Center Bancorp
CNOB
$1.82B
$57.3M 0.16%
1,908,383
+1,904,418
+48,031% +$52.6M
EWBC icon
145
East-West Bancorp
EWBC
$18.6B
$56.5M 0.16%
728,919
-20,298
-3% -$1.48M
NVDA icon
146
NVIDIA
NVDA
$5.44T
$55.9M 0.16%
2,696,030
+244,590
+10% +$5.08M
CDXS icon
147
Codexis
CDXS
$176M
$55.2M 0.16%
2,371,197
+27,319
+1% +$646K
BLK icon
148
Blackrock
BLK
$181B
$53.9M 0.15%
64,295
-724
-1% -$649K
ISRG icon
149
Intuitive Surgical
ISRG
$142B
$52.8M 0.15%
159,309
-1,056
-0.7% -$355K
FIS icon
150
Fidelity National Information Services
FIS
$21.9B
$52.3M 0.15%
429,840
-360,511
-46% -$48.4M
4 5
6
7 8

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
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
Gates Foundation Trust
Gates Foundation Trust Kirkland, Washington $31.7B AUM 20.52% 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.