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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
+5.95%
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
$26.2B
AUM Growth
+$458M
Cap. Flow
-$585M
Cap. Flow %
-2.23%
Top 10 Hldgs %
18.81%
Holding
469
New
42
Increased
160
Reduced
224
Closed
36

Sector Composition

Rank Sector Weight
1 Technology 14.91%
2 Financials 14.73%
3 Consumer Discretionary 14.13%
4 Industrials 13.07%
5 Healthcare 12.8%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
ALLE icon
276
Allegion
ALLE
$14.3B
$15.6M 0.06%
+182,999
New +$15.3M
CVBF icon
277
CVB Financial
CVBF
$4.02B
$15.2M 0.06%
671,166
-22,814
-3% -$537K
EEMS icon
278
iShares MSCI Emerging Markets Small-Cap ETF
EEMS
$375M
$15.2M 0.06%
+284,000
New +$15.4M
CRS icon
279
Carpenter Technology
CRS
$26.7B
$15.1M 0.06%
343,313
-12,629
-4% -$636K
KMT icon
280
Kennametal
KMT
$2.3B
$15.1M 0.06%
+374,909
New +$17.1M
PLOW icon
281
Douglas Dynamics
PLOW
$979M
$15M 0.06%
346,131
+264
+0.1% +$10.9K
CSRA
282
DELISTED
CSRA Inc.
CSRA
$14.7M 0.06%
356,750
-4,562,278
-93% -$167M
SLGN icon
283
Silgan Holdings
SLGN
$4.35B
$14.5M 0.06%
521,062
-17,874
-3% -$512K
HIW icon
284
Highwoods Properties
HIW
$3.4B
$14.5M 0.06%
329,977
-28,961
-8% -$1.31M
ALOG
285
DELISTED
Analogic Corp
ALOG
$14.3M 0.05%
149,268
-5,056
-3% -$438K
CXP
286
DELISTED
COLUMBIA PROPERTY TRUST, INC.
CXP
$14.2M 0.05%
+695,494
New +$14.8M
AROC icon
287
Archrock
AROC
$5.78B
$13.9M 0.05%
1,587,282
-53,787
-3% -$514K
FET icon
288
Forum Energy Technologies
FET
$934M
$13.8M 0.05%
+62,766
New +$17.5M
LDL
289
DELISTED
Lydall, Inc.
LDL
$13.5M 0.05%
279,751
-42,443
-13% -$2.04M
HK
290
DELISTED
Halcon Resources Corporation
HK
$13.4M 0.05%
2,743,383
+1,086,505
+66% +$7.35M
KAI icon
291
Kadant
KAI
$4B
$13.2M 0.05%
139,405
-45,792
-25% -$4.5M
BVN icon
292
Compañía de Minas Buenaventura
BVN
$8.84B
$13.2M 0.05%
+864,231
New +$13.1M
SXI icon
293
Standex International
SXI
$3.97B
$12.6M 0.05%
131,738
-68,005
-34% -$6.81M
AWI icon
294
Armstrong World Industries
AWI
$7.89B
$12.4M 0.05%
221,086
+1,891
+0.9% +$115K
CBB
295
DELISTED
Cincinnati Bell Inc.
CBB
$12.2M 0.05%
883,127
+156,583
+22% +$2.54M
LAUR icon
296
Laureate Education
LAUR
$5.05B
$12.1M 0.05%
877,187
-127,560
-13% -$1.79M
ASR icon
297
Grupo Aeroportuario del Sureste
ASR
$8.15B
$12M 0.05%
70,528
-124,578
-64% -$22.9M
LHCG
298
DELISTED
LHC Group LLC
LHCG
$11.7M 0.04%
190,673
+2,746
+1% +$173K
NPKI
299
NPK International
NPKI
$1.18B
$11.6M 0.04%
1,433,736
-48,270
-3% -$423K
NWPX icon
300
NWPX Infrastructure Inc
NWPX
$1.08B
$11.6M 0.04%
670,917
-40,760
-6% -$785K

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William Blair Investment Management's Q1 2018 Portfolio in Review

As of Q1 2018, William Blair Investment Management held 469 positions worth $26.2B, up 1.8% from $25.7B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair Investment Management's Q1 2018 filing shows 42 new, 160 increased, 224 reduced and 36 closed positions. Its largest new stake was Healthcare Services Group: 3,458,904 shares worth $150M. The largest sale was Maximus, an estimated $224M.

By sector, the portfolio is most concentrated in Technology at 15% of assets, up from 14% a quarter earlier, followed by Financials and Consumer Discretionary.

  • William Blair Investment Management's largest Q1 2018 buy was Healthcare Services Group: 3,458,904 shares worth $150M.
  • William Blair Investment Management added most to PARSLEY ENERGY INC in Q1 2018, an estimated $136M increase.
  • William Blair Investment Management's biggest Q1 2018 reduction was Canadian National Railway, cutting an estimated $212M.
  • William Blair Investment Management fully exited Maximus in Q1 2018, selling an estimated $224M.
  • William Blair Investment Management's ten largest holdings make up 19% of its $26.2B portfolio in Q1 2018.
  • William Blair Investment Management opened 42 new positions and closed 36 in Q1 2018.
  • William Blair Investment Management's portfolio value rose 1.8% quarter-over-quarter to $26.2B.

Based on William Blair Investment Management's 13F filing for Q1 2018, filed 14 May 2018.