Ratings by William Blair (Ryan Merkel)

Date CompanySymbol Type Rating
(Past)
PT
(Past)
Start $
(End $)
% Chg. Details
6/4/2026 Karat Packaging Inc KRT Upgrade Outperform
(Market Perform)
27.42
(38.09)
38.91% Details
5/11/2026 Madison Air Solutions MAIR New Coverage Outperform
(N/A)
42.02
(34.00)
-19.09% Details
5/4/2026 Suncrete Inc RMIX New Coverage Outperform
(N/A)
15.60
(19.58)
25.51% Details
4/23/2026 Pool Corp POOL Maintain Market Perform
(N/A)
 
 
  Details
4/2/2026 Acuity Brands AYI Maintain Outperform
(N/A)
 
 
  Details
4/1/2026 James Hardie Industries JHX Maintain Outperform
(N/A)
 
 
  Details
4/1/2026 MSC Industrial MSM Maintain Market Perform
(N/A)
 
 
  Details
3/24/2026 Watsco WSO Maintain Market Perform
(N/A)
 
 
  Details
3/18/2026 Carlisle CSL Maintain Market Perform
(N/A)
 
 
  Details
3/18/2026 AAON Inc AAON Maintain Outperform
(N/A)
 
 
  Details
3/5/2026 Lennox International LII Maintain Outperform
(N/A)
 
 
  Details
3/4/2026 Latham Group Inc. SWIM Maintain Outperform
(N/A)
 
 
  Details
3/2/2026 AAON Inc AAON Maintain Outperform
(N/A)
 
 
  Details
2/26/2026 Builders FirstSource BLDR New Coverage Outperform
(N/A)
102.63
(74.26)
-27.64% Details
12/30/2025 Acuity Brands AYI Maintain Outperform
(N/A)
 
 
  Details
12/30/2025 AAON Inc AAON Maintain Outperform
(N/A)
 
 
  Details
12/10/2025 AAON Inc AAON Maintain Outperform
(N/A)
 
 
  Details
11/5/2025 Trex TREX Downgrade Market Perform
(Outperform)
47.94
(45.13)
-5.86% Details
10/22/2025 Lennox International LII Maintain Outperform
(N/A)
 
 
  Details
10/15/2025 Pool Corp POOL Downgrade Market Perform
(Outperform)
291.73
(201.17)
-31.04% Details
10/15/2025 SiteOne Landscape Supply SITE Downgrade Market Perform
(Outperform)
120.05
(103.73)
-13.59% Details
10/15/2025 Watsco WSO Downgrade Market Perform
(Outperform)
364.49
(371.91)
2.04% Details
10/1/2025 Acuity Brands AYI Maintain Outperform
(N/A)
 
 
  Details
9/12/2025 Proficient Auto Logistics PAL Downgrade Market Perform
(Outperform)
7.45
(7.11)
-4.56% Details
8/20/2025 QXO Inc QXO Maintain Outperform
(N/A)
 
 
  Details
8/12/2025 AAON Inc AAON Maintain Outperform
(N/A)
 
 
  Details
6/27/2025 James Hardie Industries JHX New Coverage Outperform
(N/A)
25.77
(25.82)
0.19% Details
6/26/2025 Acuity Brands AYI Maintain Outperform
(N/A)
 
 
  Details
6/18/2025 QXO Inc QXO New Coverage Outperform
(N/A)
13.71
(13.71)
0% Details
6/10/2025 AAON Inc AAON Maintain Outperform
(N/A)
 
 
  Details
3/24/2025 Azek Co. AZEK Downgrade Market Perform
(Outperform)
41.39
(54.35)
31.31% Details
3/20/2025 Beacon Roofing Supply BECN Downgrade Market Perform
(Outperform)
121.53
(124.17)
2.17% Details
3/10/2025 WW Grainger GWW Upgrade Outperform
(Market Perform)
995.82
(1395.01)
40.09% Details
3/10/2025 Fastenal FAST Upgrade Outperform
(Market Perform)
77.85
(45.49)
-41.57% Details
2/21/2025 AAON Inc AAON Maintain Outperform
(N/A)
 
 
  Details
1/2/2025 Acuity Brands AYI Upgrade Outperform
(Market Perform)
292.13
(333.72)
14.24% Details
1/2/2025 Karat Packaging Inc KRT Downgrade Market Perform
(Outperform)
30.26
(27.42)
-9.39% Details
1/2/2025 Hillman Solutions Corp. HLMN Downgrade Market Perform
(Outperform)
9.74
(8.09)
-16.94% Details
6/3/2024 Proficient Auto Logistics PAL New Coverage Outperform
(N/A)
15.13
(7.45)
-50.76% Details
4/29/2024 AAON Inc AAON New Coverage Outperform
(N/A)
89.90
(111.42)
23.94% Details
4/15/2024 Snap One Holdings SNPO Downgrade Market Perform
(Outperform)
8.14
(10.75)
32.06% Details
3/6/2024 Ferguson Plc. FERG Maintain Outperform
(N/A)
 
 
  Details
1/8/2024 Beacon Roofing Supply BECN Upgrade Outperform
(Market Perform)
84.98
(124.17)
46.12% Details
7/14/2023 Leslie's LESL Downgrade Market Perform
(Outperform)
9.52
(2.59)
-72.79% Details
7/12/2023 Lennox International LII Upgrade Outperform
(Market Perform)
327.17
(543.93)
66.25% Details
7/7/2023 Ferguson Plc. FERG New Coverage Outperform
(N/A)
156.28
(232.02)
48.46% Details
7/19/2022 Beacon Roofing Supply BECN Downgrade Market Perform
(Outperform)
55.21
(124.17)
124.9% Details
6/30/2022 MSC Industrial MSM Downgrade Market Perform
(Outperform)
73.56
(124.77)
69.62% Details
6/23/2022 Acuity Brands AYI Downgrade Market Perform
(Outperform)
155.23
(333.72)
114.98% Details
10/13/2021 Beacon Roofing Supply BECN Maintain Outperform
(N/A)
 
 
  Details
9/16/2021 Hayward Holdings Inc HAYW Maintain Outperform
(N/A)
 
 
  Details
8/9/2021 Hillman Solutions Corp. HLMN New Coverage Outperform
(N/A)
12.71
(8.09)
-36.35% Details
7/14/2021 Lennox International LII Downgrade Market Perform
(Outperform)
336.17
(543.93)
61.8% Details
7/14/2021 Beacon Roofing Supply BECN Maintain Outperform
(N/A)
 
 
  Details
5/19/2021 Karat Packaging Inc KRT New Coverage Outperform
(N/A)
17.37
(38.09)
119.29% Details
5/18/2021 Latham Group Inc. SWIM New Coverage Outperform
(N/A)
31.81
(5.89)
-81.48% Details
4/8/2021 MSC Industrial MSM Upgrade Outperform
(Market Perform)
91.64
(124.77)
36.15% Details
4/6/2021 Hayward Holdings Inc HAYW New Coverage Outperform
(N/A)
17.04
(14.36)
-15.73% Details
3/26/2021 Acuity Brands AYI Upgrade Outperform
(Market Perform)
131.57
(333.72)
153.64% Details
2/24/2021 Systemax SYX Downgrade Market Perform
(Outperform)
44.41
(35.16)
-20.83% Details
11/23/2020 Leslie's LESL New Coverage Outperform
(N/A)
22.00
(2.59)
-88.23% Details
10/6/2020 Beacon Roofing Supply BECN Upgrade Outperform
(Market Perform)
32.16
(124.17)
286.1% Details
7/20/2020 Beacon Roofing Supply BECN Maintain Market Perform
(N/A)
 
 
  Details
6/29/2020 HD Supply Holdings HDS Maintain Market Perform
(N/A)
 
 
  Details
6/3/2020 Allegion ALLE New Coverage Market Perform
(N/A)
100.65
(137.24)
36.35% Details
2/12/2020 WW Grainger GWW Upgrade Outperform
(Market Perform)
298.17
(1395.01)
367.86% Details
2/4/2020 Lennox International LII Maintain Outperform
(N/A)
 
 
  Details
1/14/2020 Trex TREX Maintain Outperform
(N/A)
 
 
  Details
1/8/2020 Trex TREX Maintain Outperform
(N/A)
 
 
  Details
9/26/2019 HD Supply Holdings HDS Downgrade Market Perform
(Outperform)
37.92
(55.99)
47.65% Details
8/22/2019 Trex TREX New Coverage Outperform
()
85.67
(47.94)
-44.04% Details
5/7/2019 Fastenal FAST Downgrade Market Perform
(Outperform)
67.96
(45.49)
-33.06% Details
5/7/2019 MSC Industrial MSM Downgrade Market Perform
(Outperform)
83.97
(124.77)
48.59% Details
5/7/2019 WESCO International WCC Downgrade Market Perform
(Outperform)
57.09
(327.86)
474.29% Details
4/10/2019 Pool Corp POOL Maintain Outperform
(N/A)
 
 
  Details
1/18/2019 LKQ Corp. LKQ Downgrade Market Perform
(Outperform)
26.82
(25.38)
-5.37% Details
10/31/2018 Systemax SYX Upgrade Outperform
(Market Perform)
25.82
(35.16)
36.17% Details
10/8/2018 Beacon Roofing Supply BECN Downgrade Market Perform
(Outperform)
33.34
(124.17)
272.44% Details
9/25/2018 Acuity Brands AYI Maintain Market Perform
(N/A)
 
 
  Details
9/25/2018 SiteOne Landscape Supply SITE Maintain Outperform
(Outperform)
 
 
  Details
8/29/2018 Systemax SYX New Coverage Market Perform
(N/A)
36.82
(25.82)
-29.88% Details