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

William Blair & Company Portfolio holdings

AUM $34.9B
1-Year Est. Return 18.88%
This Fund
S&P 500
This Quarter Est. Return
-5.41%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+512.03%
AUM
$11.6B
AUM Growth
-$55.3B
Cap. Flow
-$52.2B
Cap. Flow %
-451.81%
Top 10 Hldgs %
17.24%
Holding
2,286
New
72
Increased
349
Reduced
842
Closed
862

Top Buys

Rank Stock Value
1
PYPL icon
PayPal
PYPL
+$23.1M
2
WDAY icon
Workday
WDAY
+$23M
3
PANW icon
Palo Alto Networks
PANW
+$16.6M
4
BIIB icon
Biogen
BIIB
+$16.4M
5
DHR icon
Danaher
DHR
+$16.2M

Sector Composition

Rank Sector Weight
1 Healthcare 18.68%
2 Technology 13.63%
3 Industrials 12.35%
4 Financials 11.99%
5 Consumer Discretionary 11.58%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
ORLY icon
26
O'Reilly Automotive
ORLY
$72.9B
$81.7M 0.71%
4,903,395
-12,861,615
-72% -$208M
ULTI
27
DELISTED
Ultimate Software Group Inc
ULTI
$79.4M 0.69%
443,545
-47,474
-10% -$8.48M
WEX icon
28
WEX
WEX
$6.37B
$77.3M 0.67%
890,638
-18,457
-2% -$1.84M
LOW icon
29
Lowe's Companies
LOW
$117B
$76.2M 0.66%
1,105,791
-1,305,543
-54% -$89.8M
EOG icon
30
EOG Resources
EOG
$79.2B
$75.2M 0.65%
1,033,646
-245,865
-19% -$19.1M
TDG icon
31
TransDigm Group
TDG
$70.2B
$73.7M 0.64%
347,065
-901,667
-72% -$206M
MSFT icon
32
Microsoft
MSFT
$3.45T
$73.2M 0.63%
1,654,787
+162,090
+11% +$7.28M
CRM icon
33
Salesforce
CRM
$151B
$73M 0.63%
1,051,353
+20,738
+2% +$1.47M
GS icon
34
Goldman Sachs
GS
$300B
$69.1M 0.6%
397,684
+24,879
+7% +$4.88M
WSM icon
35
Williams-Sonoma
WSM
$26.9B
$69.1M 0.6%
1,809,598
-7,008,028
-79% -$285M
SPY icon
36
State Street SPDR S&P 500 ETF Trust
SPY
$790B
$67.4M 0.58%
351,672
-1,206,719
-77% -$245M
COST icon
37
Costco
COST
$422B
$67.2M 0.58%
465,168
-603,699
-56% -$86.1M
CSGP icon
38
CoStar Group
CSGP
$11.7B
$66.3M 0.57%
3,831,780
-10,257,770
-73% -$196M
BKNG icon
39
Booking.com
BKNG
$149B
$63.1M 0.55%
1,275,925
-2,110,450
-62% -$105M
ICE icon
40
Intercontinental Exchange
ICE
$85.6B
$62.8M 0.54%
1,335,770
-789,770
-37% -$36.6M
PX
41
DELISTED
Praxair Inc
PX
$60.5M 0.52%
593,885
-47,478
-7% -$5.24M
AME icon
42
Ametek
AME
$55.4B
$60.2M 0.52%
1,151,494
-3,718,416
-76% -$201M
GWRE icon
43
Guidewire Software
GWRE
$12.6B
$58.3M 0.5%
1,108,578
-4,321,247
-80% -$239M
SIRO
44
DELISTED
SIRONA DENTAL SYSTEMS INC COM STK
SIRO
$57.9M 0.5%
619,825
-2,608,113
-81% -$259M
CL icon
45
Colgate-Palmolive
CL
$73.1B
$57.4M 0.5%
905,169
-1,704,245
-65% -$111M
TSCO icon
46
Tractor Supply
TSCO
$16.1B
$57.4M 0.5%
3,404,955
-2,727,815
-44% -$48.6M
MJN
47
DELISTED
Mead Johnson Nutrition Company
MJN
$57.3M 0.5%
814,447
-1,883,636
-70% -$155M
JNJ icon
48
Johnson & Johnson
JNJ
$618B
$57.3M 0.5%
613,827
+3,323
+0.5% +$321K
GWW icon
49
W.W. Grainger
GWW
$65.3B
$56.9M 0.49%
264,488
-2,581
-1% -$580K
UNP icon
50
Union Pacific
UNP
$174B
$56.6M 0.49%
640,048
-1,132,481
-64% -$103M

Similar funds

William Blair & Company's Q3 2015 Portfolio in Review

As of Q3 2015, William Blair & Company held 2,286 positions worth $11.6B, down 83% from $66.9B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

William Blair & Company withdrew a net $52.2B in Q3 2015, closing 862 positions and reducing 842 holdings. Its most notable exit was Enbridge, an estimated $154M position sold in full.

By sector, the portfolio is most concentrated in Healthcare at 19% of assets, up from 7.4% a quarter earlier, followed by Technology and Industrials.

Against the trend, William Blair & Company opened a new position in PayPal worth $20M.

  • William Blair & Company's largest Q3 2015 buy was PayPal: 644,428 shares worth $20M.
  • William Blair & Company added most to Workday in Q3 2015, an estimated $23M increase.
  • William Blair & Company's biggest Q3 2015 reduction was Teva Pharmaceuticals, cutting an estimated $348M.
  • William Blair & Company fully exited Enbridge in Q3 2015, selling an estimated $154M.
  • William Blair & Company's ten largest holdings make up 17% of its $11.6B portfolio in Q3 2015.
  • William Blair & Company opened 72 new positions and closed 862 in Q3 2015.
  • William Blair & Company's portfolio value fell 83% quarter-over-quarter to $11.6B.

Based on William Blair & Company's 13F filing for Q3 2015, filed 12 Nov 2015.