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William Blair Investment Management Portfolio holdings
AUM
$33.3B
1-Year Est. Return
44.76%
This Fund
S&P 500
This Quarter
Est. Return
-6.4%
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
$35.6B
AUM Growth
-$5.32B
(-13%)
Cap. Flow
-$1.91B
Cap. Flow
% of AUM
-5.36%
Top 10 Holdings %
Top 10 Hldgs %
26.78%
Holding
469
New
36
Increased
114
Reduced
269
Closed
46
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$515M |
| 2 |
Sea Limited
SE
|
+$179M |
| 3 |
Tyler Technologies
TYL
|
+$177M |
| 4 |
WAY
Waystar Holding Corp
WAY
|
+$167M |
| 5 |
Ciena
CIEN
|
+$159M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Advanced Micro Devices
AMD
|
+$229M |
| 2 |
Accenture
ACN
|
+$222M |
| 3 |
Penumbra
PEN
|
+$210M |
| 4 |
CF Industries
CF
|
+$201M |
| 5 |
Texas Instruments
TXN
|
+$184M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 32.57% |
| 2 | Consumer Discretionary | 15.58% |
| 3 | Financials | 13.1% |
| 4 | Healthcare | 12.15% |
| 5 | Industrials | 9.67% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
276
Graco
GGG
$13.4B
| $22.6M | 0.06% |
270,435
-126,868
| -32% | -$10.7M |
|
277
GitLab
GTLB
$6.89B
| $22.1M | 0.06% |
471,044
+36,983
| +9% | +$2.26M |
|
278
Gogo Inc
GOGO
$383M
| $21.8M | 0.06% |
2,524,248
+99,870
| +4% | +$781K |
|
279
Grid Dynamics Holdings
GDYN
$632M
| $21.7M | 0.06% |
1,389,043
+391,218
| +39% | +$7.84M |
|
280
BioLife Solutions
BLFS
$1.71B
| $21.6M | 0.06% |
946,623
+36,275
| +4% | +$955K |
|
281
PDF Solutions
PDFS
$2.19B
| $21.5M | 0.06% |
1,125,959
+62,376
| +6% | +$1.53M |
|
282
Sunstone Hotel Investors
SHO
$2.01B
| $21.5M | 0.06% |
2,282,251
-104,988
| -4% | -$1.14M |
|
283
Ecovyst
ECVT
$1.09B
| $21.5M | 0.06% |
3,461,316
-140,030
| -4% | -$1.04M |
|
284
Revolve Group
RVLV
$1.69B
| $21.2M | 0.06% |
985,530
-2,497,322
| -72% | -$69.4M |
|
285
Cracker Barrel
CBRL
$1.31B
| $21.1M | 0.06% |
544,685
+241,135
| +79% | +$12.1M |
|
286
Cheesecake Factory
CAKE
$5.84B
| $21M | 0.06% |
431,732
-126,611
| -23% | -$6.48M |
|
287
SM Energy
SM
$7.71B
| $21M | 0.06% |
701,437
-32,101
| -4% | -$1.15M |
|
288
Pebblebrook Hotel Trust
PEB
$2.04B
| $20.9M | 0.06% |
2,067,154
-92,047
| -4% | -$1.13M |
|
289
ADT
ADT
$5.34B
| $20.8M | 0.06% |
2,555,514
-64,674
| -2% | -$488K |
|
290
Werner Enterprises
WERN
$2.27B
| $20.7M | 0.06% |
705,276
-30,419
| -4% | -$1.02M |
|
291
Oxford Industries
OXM
$538M
| $20.6M | 0.06% |
351,830
-15,793
| -4% | -$1.14M |
|
292
Ceco Environmental
CECO
$4.43B
| $20.6M | 0.06% |
+901,587
| New | +$24M |
|
293
Cognyte Software
CGNT
$675M
| $20.4M | 0.06% |
2,621,012
-121,831
| -4% | -$1.11M |
|
294
PBF Energy
PBF
$8.34B
| $20.4M | 0.06% |
1,070,293
+357,377
| +50% | +$8.9M |
|
295
Vita Coco
COCO
$3.85B
| $19.9M | 0.06% |
648,191
+24,788
| +4% | +$884K |
|
296
Marten Transport
MRTN
$1.22B
| $19.6M | 0.06% |
1,430,899
-61,243
| -4% | -$911K |
|
297
Steven Madden
SHOO
$3.49B
| $19.5M | 0.05% |
733,590
-33,957
| -4% | -$1.19M |
|
298
Deluxe
DLX
$1.09B
| $19.3M | 0.05% |
1,223,784
-56,475
| -4% | -$1.07M |
|
|
SUPV
299
Grupo Supervielle
SUPV
$725M
| $18.9M | 0.05% |
+1,449,137
| New | +$22.1M |
|
|
RYZ
300
Ryerson Holding Corp
RYZ
$1.5B
| $18.9M | 0.05% |
821,111
-34,135
| -4% | -$764K |
|
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William Blair Investment Management's Q1 2025 Portfolio in Review
As of Q1 2025, William Blair Investment Management held 469 positions worth $35.6B, down 13% from $40.9B the previous quarter. Its ten largest holdings account for 27% of the portfolio.
William Blair Investment Management withdrew a net $1.91B in Q1 2025, closing 46 positions and reducing 269 holdings. Its most notable exit was Penumbra, an estimated $210M position sold in full.
By sector, the portfolio is most concentrated in Technology at 33% of assets, down from 34% a quarter earlier, followed by Consumer Discretionary and Financials.
Against the trend, William Blair Investment Management opened a new position in Waystar Holding Corp worth $158M.
- William Blair Investment Management's largest Q1 2025 buy was Waystar Holding Corp: 4,227,425 shares worth $158M.
- William Blair Investment Management added most to Broadcom in Q1 2025, an estimated $515M increase.
- William Blair Investment Management's biggest Q1 2025 reduction was Advanced Micro Devices, cutting an estimated $229M.
- William Blair Investment Management fully exited Penumbra in Q1 2025, selling an estimated $210M.
- William Blair Investment Management's ten largest holdings make up 27% of its $35.6B portfolio in Q1 2025.
- William Blair Investment Management opened 36 new positions and closed 46 in Q1 2025.
- William Blair Investment Management's portfolio value fell 13% quarter-over-quarter to $35.6B.
Based on William Blair Investment Management's 13F filing for Q1 2025, filed 9 May 2025.