We are live on ! Find out more
William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
+14.12%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$29.3B
AUM Growth
+$3.27B
Cap. Flow
-$91M
Cap. Flow %
-0.31%
Top 10 Hldgs %
24.41%
Holding
1,872
New
83
Increased
624
Reduced
816
Closed
87

Top Buys

Rank Stock Value
1
GWRE icon
Guidewire Software
GWRE
+$37.5M
2
SCHW
Charles Schwab
SCHW
+$37.1M
3
VLTO icon
Veralto
VLTO
+$17.1M
4
VRTX icon
Vertex Pharmaceuticals
VRTX
+$16.7M
5
CSGP icon
CoStar Group
CSGP
+$16.3M

Top Sells

Rank Stock Value
1
DHR icon
Danaher
DHR
+$37.6M
2
IRTC icon
iRhythm Holdings
IRTC
+$26.7M
3
DE icon
Deere & Co
DE
+$22.6M
4
TOST icon
Toast
TOST
+$21.2M
5
KO icon
Coca-Cola
KO
+$20.3M

Sector Composition

Rank Sector Weight
1 Technology 26.35%
2 Healthcare 17.08%
3 Financials 12.09%
4 Industrials 11.7%
5 Consumer Discretionary 8.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
TBT icon
1651
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$309M
$19.6K ﹤0.01%
650
-50
-7% -$1.88K
FXH icon
1652
First Trust Health Care AlphaDEX Fund
FXH
$1.11B
$19.6K ﹤0.01%
189
-20,910
-99% -$2.02M
AGZ icon
1653
iShares Agency Bond ETF
AGZ
$564M
$19.5K ﹤0.01%
180
-30
-14% -$3.19K
GLDG
1654
GoldMining Inc
GLDG
$223M
$19.5K ﹤0.01%
20,000
– –
HEWJ icon
1655
iShares Currency Hedged MSCI Japan ETF
HEWJ
$763M
$19.2K ﹤0.01%
550
-1,200
-69% -$41.5K
IQLT icon
1656
iShares MSCI Intl Quality Factor ETF
IQLT
$14.3B
$18.8K ﹤0.01%
501
-580
-54% -$20.2K
ITM icon
1657
VanEck Intermediate Muni ETF
ITM
$2.13B
$18.8K ﹤0.01%
400
-1,957
-83% -$88.1K
VIOG icon
1658
Vanguard S&P Small-Cap 600 Growth ETF
VIOG
$1.13B
$18K ﹤0.01%
167
– –
FTXL icon
1659
First Trust Nasdaq Semiconductor ETF
FTXL
$1.36B
$17.9K ﹤0.01%
220
– –
MORT icon
1660
VanEck Mortgage REIT Income ETF
MORT
$373M
$17.7K ﹤0.01%
1,500
– –
LSXMA
1661
DELISTED
Liberty Media Corporation Series A Liberty SiriusXM Common Stock
LSXMA
$17.7K ﹤0.01%
616
-11
-2% -$288
BWX icon
1662
State Street SPDR Bloomberg International Treasury Bond ETF
BWX
$1.31B
$17.6K ﹤0.01%
758
+162
+27% +$3.54K
SPEU icon
1663
State Street SPDR Portfolio Europe ETF
SPEU
$742M
$17.5K ﹤0.01%
435
– –
SMIN icon
1664
iShares MSCI India Small-Cap ETF
SMIN
$771M
$17.4K ﹤0.01%
+250
New +$16.4K
RNAC icon
1665
Cartesian Therapeutics
RNAC
$262M
$17.2K ﹤0.01%
834
– –
SOCL icon
1666
Global X Social Media ETF
SOCL
$90.3M
$15.5K ﹤0.01%
385
– –
MDYG icon
1667
State Street SPDR S&P 400 Mid Cap Growth ETF
MDYG
$2.96B
$15.4K ﹤0.01%
204
-67
-25% -$4.7K
FTSM icon
1668
First Trust Enhanced Short Maturity ETF
FTSM
$6.54B
$15.3K ﹤0.01%
+256
New +$15.3K
VLD
1669
DELISTED
Velo3D, Inc.
VLD
$15.2K ﹤0.01%
1,090
-2,681
-71% -$103K
QLTA icon
1670
iShares AAA-A Rated Corporate Bond ETF
QLTA
$1.21B
$14.6K ﹤0.01%
304
– –
KBWB icon
1671
Invesco KBW Bank ETF
KBWB
$6.85B
$14.6K ﹤0.01%
296
+1
+0.3% +$42
SENS icon
1672
Senseonics Holdings Inc
SENS
$419M
$14.4K ﹤0.01%
1,265
– –
XTL icon
1673
State Street SPDR S&P Telecom ETF
XTL
$558M
$14.3K ﹤0.01%
179
– –
SCWO icon
1674
374Water
SCWO
$41.1M
$14.2K ﹤0.01%
1,000
– –
PJAN icon
1675
Innovator US Equity Power Buffer ETF January
PJAN
$1.43B
$13.9K ﹤0.01%
372
– –
65 66
67
68 69

Similar funds

Parallax Volatility Advisers
Parallax Volatility Advisers San Francisco, California $38.6B AUM 45.89% 1-Year Est. Return
Credit Agricole
Credit Agricole Montrouge Cedex, France $38.1B AUM
Carson Wealth (CWM LLC)
Carson Wealth (CWM LLC) Omaha, Nebraska $38.1B AUM 19.66% 1-Year Est. Return
Nomura Asset Management
Nomura Asset Management Tokyo, Japan $38.8B AUM 30.94% 1-Year Est. Return
Nomura Holdings
Nomura Holdings Tokyo, Japan $37.7B AUM 34.44% 1-Year Est. Return
Fayez Sarofim & Co
Fayez Sarofim & Co Houston, Texas $39.1B AUM 15.14% 1-Year Est. Return
Grantham, Mayo, Van Otterloo & Co (GMO)
Grantham, Mayo, Van Otterloo & Co (GMO) Boston, Massachusetts $39.1B AUM 28.69% 1-Year Est. Return
HF
HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return

William Blair & Company's Q4 2023 Portfolio in Review

As of Q4 2023, William Blair & Company held 1,872 positions worth $29.3B, up 13% from $26.1B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q4 2023 filing shows 83 new, 624 increased, 816 reduced and 87 closed positions. Its largest new stake was Veralto: 229,539 shares worth $18.9M. The largest sale was Danaher, an estimated $37.6M.

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

  • William Blair & Company's largest Q4 2023 buy was Veralto: 229,539 shares worth $18.9M.
  • William Blair & Company added most to Guidewire Software in Q4 2023, an estimated $37.5M increase.
  • William Blair & Company's biggest Q4 2023 reduction was Danaher, cutting an estimated $37.6M.
  • William Blair & Company fully exited Seagen Inc. Common Stock in Q4 2023, selling an estimated $13.8M.
  • William Blair & Company's ten largest holdings make up 24% of its $29.3B portfolio in Q4 2023.
  • William Blair & Company opened 83 new positions and closed 87 in Q4 2023.
  • William Blair & Company's portfolio value rose 13% quarter-over-quarter to $29.3B.

Based on William Blair & Company's 13F filing for Q4 2023, filed 12 Feb 2024.