Group One Trading’s Builders FirstSource BLDR Stock Holding History

Group One Trading’s Portfolio BLDR Stock Details BLDR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.04M	Sell	12,600 -33,100	-72%	-$3.53M	﹤0.01%	2680
2025 Q4	$4.7M	Sell	45,700 -16,600	-27%	-$1.87M	0.01%	1556
2025 Q3	$7.55M	Buy	62,300 +22,100	+55%	+$2.93M	0.01%	1129
2025 Q2	$4.69M	Buy	40,200 +32,800	+443%	+$3.78M	0.01%	1377
2025 Q1	$925K	Sell	7,400 -22,900	-76%	-$3.33M	﹤0.01%	2526
2024 Q4	$4.33M	Buy	30,300 +100	+0.3%	+$17.7K	0.01%	1278
2024 Q3	$5.85M	Sell	30,200 -600	-2%	-$99.5K	0.02%	911
2024 Q2	$4.26M	Sell	30,800 -15,300	-33%	-$2.6M	0.02%	906
2024 Q1	$9.61M	Sell	46,100 -64,700	-58%	-$12M	0.04%	465
2023 Q4	$18.5M	Sell	110,800 -19,100	-15%	-$2.54M	0.05%	382
2023 Q3	$16.2M	Buy	129,900 +8,300	+7%	+$1.15M	0.05%	302
2023 Q2	$16.5M	Buy	121,600 +30,500	+33%	+$3.39M	0.05%	302
2023 Q1	$8.09M	Sell	91,100 -40,400	-31%	-$3.2M	0.03%	591
2022 Q4	$8.53M	Buy	131,500 +6,400	+5%	+$400K	0.02%	827
2022 Q3	$7.37M	Sell	125,100 -39,700	-24%	-$2.48M	0.01%	907
2022 Q2	$8.85M	Buy	164,800 +22,400	+16%	+$1.37M	0.01%	922
2022 Q1	$9.19M	Buy	142,400 +54,700	+62%	+$3.97M	0.01%	1065
2021 Q4	$7.52M	Buy	87,700 +15,500	+21%	+$1.05M	0.01%	1350
2021 Q3	$3.74M	Sell	72,200 -47,800	-40%	-$2.33M	﹤0.01%	2008
2021 Q2	$5.12M	Buy	120,000 +36,300	+43%	+$1.68M	0.01%	1670
2021 Q1	$3.88M	Buy	83,700 +77,300	+1,208%	+$3.29M	0.01%	1785
2020 Q4	$261K	Sell	6,400 -3,900	-38%	-$138K	﹤0.01%	3858
2020 Q3	$336K	Buy	10,300 +5,300	+106%	+$144K	﹤0.01%	3211
2020 Q2	$104K	Sell	5,000 -9,400	-65%	-$170K	﹤0.01%	3876
2020 Q1	$176K	Sell	14,400 -5,200	-27%	-$117K	﹤0.01%	2860
2019 Q4	$498K	Buy	19,600 +10,000	+104%	+$239K	﹤0.01%	2436
2019 Q3	$198K	Hold	9,600	–	–	﹤0.01%	3081
2019 Q2	$162K	Sell	9,600 -14,200	-60%	-$212K	﹤0.01%	3010
2019 Q1	$317K	Buy	23,800 +9,600	+68%	+$126K	﹤0.01%	2332
2018 Q4	$155K	Buy	14,200 +4,500	+46%	+$56.5K	﹤0.01%	2875
2018 Q3	$142K	Buy	+9,700	New	+$164K	﹤0.01%	3260
2018 Q2	–	Sell	-6,500	Closed	-$129K	–	5087
2018 Q1	$129K	Sell	6,500 -1,200	-16%	-$25.4K	﹤0.01%	3089
2017 Q4	$168K	Buy	7,700 +6,700	+670%	+$127K	﹤0.01%	3034
2017 Q3	$18K	Sell	1,000 -48,000	-98%	-$774K	﹤0.01%	4105
2017 Q2	$751K	Sell	49,000 -54,900	-53%	-$820K	0.01%	1672
2017 Q1	$1.55M	Buy	103,900 +91,500	+738%	+$1.18M	0.02%	1034
2016 Q4	$136K	Sell	12,400 -6,700	-35%	-$72.7K	﹤0.01%	2663
2016 Q3	$220K	Buy	19,100 +9,100	+91%	+$115K	﹤0.01%	2407
2016 Q2	$113K	Sell	10,000 -90,200	-90%	-$1.04M	﹤0.01%	2780
2016 Q1	$1.13M	Buy	100,200 +91,600	+1,065%	+$793K	0.02%	1098
2015 Q4	$95K	Buy	+8,600	New	+$109K	﹤0.01%	2994
2014 Q1	–	Sell	-200	Closed	-$1K	–	5185
2013 Q4	$1K	Buy	+200	New	+$1.36K	﹤0.01%	5127
2013 Q3	–	Sell	-5,600	Closed	-$33K	–	5240
2013 Q2	$33K	Buy	+5,600	New	+$35K	﹤0.01%	3761

Other funds holding BLDR

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Group One Trading's BLDR Position: Q1 2026 in Review

Group One Trading increased its Builders FirstSource (BLDR) stake by 57% in Q1 2026, buying an estimated $953K and bringing the position to 24,561 shares worth $2.02M. The position accounts for ﹤0.01% of the portfolio, ranked #2059.

Group One Trading first reported a position in BLDR in Q2 2013 and has held it in 26 quarters since. The position peaked at $3.63M in Q2 2021. 719 funds tracked by Wall St. Rank hold BLDR as of Q1 2026.

Group One Trading held 24,561 shares of Builders FirstSource worth $2.02M as of Q1 2026.
Group One Trading bought 8,922 Builders FirstSource shares in Q1 2026, an estimated $953K.
Builders FirstSource made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #2059 holding.
Group One Trading first reported a position in Builders FirstSource in Q2 2013 and has held it in 26 quarters since.
Group One Trading's Builders FirstSource position peaked at $3.63M in Q2 2021.
719 funds tracked by Wall St. Rank held Builders FirstSource as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.