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
IWP icon
451
iShares Russell Mid-Cap Growth ETF
IWP
$21B
$5.24M 0.02%
50,126
-752
-1% -$71.3K
VTWO icon
452
Vanguard Russell 2000 ETF
VTWO
$17.4B
$5.23M 0.02%
64,487
+330
+0.5% +$23.9K
RF icon
453
Regions Financial
RF
$26.9B
$5.22M 0.02%
269,306
+2,961
+1% +$49.1K
CACC icon
454
Credit Acceptance
CACC
$5.99B
$5.18M 0.02%
9,729
+3
+0% +$1.35K
SU icon
455
Suncor Energy
SU
$74.7B
$5.16M 0.02%
161,198
+6,647
+4% +$217K
VLO icon
456
Valero Energy
VLO
$95.1B
$5.14M 0.02%
39,507
-1,994
-5% -$254K
SUB icon
457
iShares Short-Term National Muni Bond ETF
SUB
$11.4B
$5.13M 0.02%
48,695
-738
-1% -$76.8K
XLC icon
458
State Street Communication Services Select Sector SPDR ETF
XLC
$22.3B
$5.12M 0.02%
70,506
+2,464
+4% +$170K
QLYS icon
459
Qualys
QLYS
$6.47B
$5.11M 0.02%
26,045
+4,780
+22% +$836K
CSX icon
460
CSX Corp
CSX
$92.8B
$5.1M 0.02%
147,011
+11,536
+9% +$367K
INDA icon
461
iShares MSCI India ETF
INDA
$6.58B
$5.08M 0.02%
104,176
-7,186
-6% -$327K
STWD icon
462
Starwood Property Trust
STWD
$6.09B
$5.08M 0.02%
241,766
+30,356
+14% +$596K
GOGO icon
463
Gogo Inc
GOGO
$383M
$5.05M 0.02%
498,628
-51,524
-9% -$547K
COIN icon
464
Coinbase
COIN
$39.3B
$5.04M 0.02%
28,968
-7,385
-20% -$806K
PPG icon
465
PPG Industries
PPG
$25.5B
$5.01M 0.02%
33,472
+31
+0.1% +$4.2K
BP icon
466
BP
BP
$111B
$4.94M 0.02%
139,614
+30,078
+27% +$1.1M
RGEN icon
467
Repligen
RGEN
$9.35B
$4.92M 0.02%
27,359
-1,696
-6% -$264K
PWR icon
468
Quanta Services
PWR
$102B
$4.84M 0.02%
22,426
+1,640
+8% +$303K
PCOR icon
469
Procore
PCOR
$8.81B
$4.82M 0.02%
69,633
+19,107
+38% +$1.18M
PRF icon
470
Invesco FTSE RAFI US 1000 ETF
PRF
$10B
$4.79M 0.02%
135,997
-8,889
-6% -$291K
COO icon
471
Cooper Companies
COO
$15B
$4.76M 0.02%
50,304
-1,496
-3% -$126K
KNX icon
472
Knight Transportation
KNX
$11.6B
$4.64M 0.02%
80,538
+6,510
+9% +$341K
WBA
473
DELISTED
Walgreens Boots Alliance
WBA
$4.64M 0.02%
177,569
-58,829
-25% -$1.32M
TTE icon
474
TotalEnergies
TTE
$194B
$4.63M 0.02%
68,710
-1,486
-2% -$99.1K
OEF icon
475
iShares S&P 100 ETF
OEF
$20.4B
$4.58M 0.02%
20,520
+553
+3% +$116K
17 18
19
20 21

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.