Group One Trading’s Ceco Environmental CECO Stock Holding History

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

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2021 Q3	–	Sell	-8,000	Closed	-$57K	–	8207
2021 Q2	$57K	Buy	8,000 +6,000	+300%	+$46.4K	﹤0.01%	6457
2021 Q1	$16K	Buy	+2,000	New	+$15.8K	﹤0.01%	6843
2020 Q1	–	Sell	-30,000	Closed	-$230K	–	5304
2019 Q4	$230K	Sell	30,000 -55,300	-65%	-$413K	﹤0.01%	3074
2019 Q3	$596K	Buy	85,300 +36,000	+73%	+$288K	﹤0.01%	2182
2019 Q2	$473K	Buy	+49,300	New	+$422K	﹤0.01%	2184
2018 Q2	–	Sell	-3,800	Closed	-$17K	–	5118
2018 Q1	$17K	Sell	3,800 -3,500	-48%	-$16.4K	﹤0.01%	4142
2017 Q4	$37K	Buy	+7,300	New	+$49.1K	﹤0.01%	3877
2016 Q1	–	Sell	-3,300	Closed	-$25K	–	4584
2015 Q4	$25K	Hold	3,300	–	–	﹤0.01%	3798
2015 Q3	$27K	Buy	+3,300	New	+$30.9K	﹤0.01%	3896
2014 Q2	–	Sell	-1,000	Closed	-$17K	–	5184
2014 Q1	$17K	Sell	1,000 -2,000	-67%	-$32.9K	﹤0.01%	4329
2013 Q4	$49K	Buy	+3,000	New	+$48.5K	﹤0.01%	3635

Other funds holding CECO

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

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

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

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

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

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

Group One Trading reduced its Ceco Environmental (CECO) stake by 89% in Q1 2026, selling an estimated $191K and leaving 361 shares worth $21.5K. The position accounts for ﹤0.01% of the portfolio, ranked #5920.

Group One Trading first reported a position in CECO in Q4 2013 and has held it in 23 quarters since. The position peaked at $199K in Q4 2025. 262 funds tracked by Wall St. Rank hold CECO as of Q1 2026.

Group One Trading held 361 shares of Ceco Environmental worth $21.5K as of Q1 2026.
Group One Trading sold 2,964 Ceco Environmental shares in Q1 2026, an estimated $191K.
Ceco Environmental made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #5920 holding.
Group One Trading first reported a position in Ceco Environmental in Q4 2013 and has held it in 23 quarters since.
Group One Trading's Ceco Environmental position peaked at $199K in Q4 2025.
262 funds tracked by Wall St. Rank held Ceco Environmental as of Q1 2026.

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