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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
+9.84%
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
$31.2B
AUM Growth
+$2.49B
Cap. Flow
+$357M
Cap. Flow %
1.14%
Top 10 Hldgs %
20.4%
Holding
426
New
33
Increased
232
Reduced
127
Closed
31

Top Buys

Rank Stock Value
1
TECH icon
Bio-Techne
TECH
+$186M
2
TYL icon
Tyler Technologies
TYL
+$171M
3
NVDA icon
NVIDIA
NVDA
+$167M
4
NOW icon
ServiceNow
NOW
+$128M
5
BFAM icon
Bright Horizons
BFAM
+$109M

Top Sells

Rank Stock Value
1
PD icon
PagerDuty
PD
+$171M
2
BLDR icon
Builders FirstSource
BLDR
+$157M
3
PYPL icon
PayPal
PYPL
+$135M
4
NATI
National Instruments Corp
NATI
+$122M
5
LECO icon
Lincoln Electric
LECO
+$116M

Sector Composition

Rank Sector Weight
1 Technology 25.63%
2 Industrials 16.13%
3 Healthcare 15.71%
4 Consumer Discretionary 14.7%
5 Financials 8.24%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AMBP icon
401
Ardagh Metal Packaging
AMBP
$3.02B
– –
-2,487,809
Closed -$10.2M
CDNS icon
402
Cadence Design Systems
CDNS
$89B
– –
-6,785
Closed -$1.43M
CLVT icon
403
Clarivate
CLVT
$1.19B
– –
-55,805
Closed -$524K
CNOB icon
404
Center Bancorp
CNOB
$1.81B
– –
-1,127,616
Closed -$19.9M
DCOM icon
405
Dime Commercial Bancshares
DCOM
$1.81B
– –
-1,133,312
Closed -$25.7M
DXCM icon
406
DexCom
DXCM
$34.3B
– –
-8,155
Closed -$947K
EPI icon
407
WisdomTree India Earnings Fund ETF
EPI
$2.04B
– –
-785,263
Closed -$24.8M
ETR icon
408
Entergy
ETR
$50.3B
– –
-3,946
Closed -$213K
EWY icon
409
iShares MSCI South Korea ETF
EWY
$27.2B
– –
-34,350
Closed -$2.1M
G icon
410
Genpact
G
$5.7B
– –
-2,004,108
Closed -$92.6M
HES
411
DELISTED
Hess
HES
– –
-6,715
Closed -$889K
LESL icon
412
Leslie's
LESL
$12.4M
– –
-200,132
Closed -$44.1M
MTD icon
413
Mettler-Toledo International
MTD
$28.8B
– –
-504
Closed -$771K
PD icon
414
PagerDuty
PD
$876M
– –
-4,875,088
Closed -$171M
SLM icon
415
SLM Corp
SLM
$5.26B
– –
-18,684
Closed -$231K
SMIN icon
416
iShares MSCI India Small-Cap ETF
SMIN
$771M
– –
-228,262
Closed -$11.4M
SQM icon
417
Sociedad Química y Minera de Chile
SQM
$20.4B
– –
-273,419
Closed -$22.2M
STE icon
418
Steris
STE
$23.1B
– –
-1,990
Closed -$381K
TDY icon
419
Teledyne Technologies
TDY
$31.8B
– –
-2,630
Closed -$1.18M
TFC icon
420
Truist Financial
TFC
$64.3B
– –
-14,791
Closed -$504K
TS icon
421
Tenaris
TS
$26.8B
– –
-130,589
Closed -$3.71M
TTWO icon
422
Take-Two Interactive
TTWO
$45.4B
– –
-41,331
Closed -$4.93M
WNS
423
DELISTED
WNS Holdings
WNS
– –
-314,445
Closed -$29.3M
WST icon
424
West Pharmaceutical
WST
$24.8B
– –
-1,595
Closed -$553K
TDCX
425
DELISTED
TDCX Inc. American Depositary Shares, each representing one Class A ordinary share
TDCX
– –
-56,261
Closed -$501K
14 15 16
17
18

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William Blair Investment Management's Q2 2023 Portfolio in Review

As of Q2 2023, William Blair Investment Management held 426 positions worth $31.2B, up 8.7% from $28.7B the previous quarter. Its ten largest holdings account for 20% of the portfolio.

William Blair Investment Management's Q2 2023 filing shows 33 new, 232 increased, 127 reduced and 31 closed positions. Its largest new stake was Bio-Techne: 2,314,458 shares worth $189M. The largest sale was PagerDuty, an estimated $171M.

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

  • William Blair Investment Management's largest Q2 2023 buy was Bio-Techne: 2,314,458 shares worth $189M.
  • William Blair Investment Management added most to NVIDIA in Q2 2023, an estimated $167M increase.
  • William Blair Investment Management's biggest Q2 2023 reduction was Builders FirstSource, cutting an estimated $157M.
  • William Blair Investment Management fully exited PagerDuty in Q2 2023, selling an estimated $171M.
  • William Blair Investment Management's ten largest holdings make up 20% of its $31.2B portfolio in Q2 2023.
  • William Blair Investment Management opened 33 new positions and closed 31 in Q2 2023.
  • William Blair Investment Management's portfolio value rose 8.7% quarter-over-quarter to $31.2B.

Based on William Blair Investment Management's 13F filing for Q2 2023, filed 11 Aug 2023.