Group One Trading’s Rambus RMBS Stock Holding History

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

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.07M	Sell	12,400 -1,400	-10%	-$140K	﹤0.01%	2647
2025 Q4	$1.27M	Sell	13,800 -17,700	-56%	-$1.74M	﹤0.01%	2690
2025 Q3	$3.28M	Buy	31,500 +11,600	+58%	+$894K	0.01%	1866
2025 Q2	$1.27M	Sell	19,900 -7,100	-26%	-$380K	﹤0.01%	2547
2025 Q1	$1.4M	Sell	27,000 -7,500	-22%	-$441K	﹤0.01%	2159
2024 Q4	$1.82M	Buy	34,500 +20,600	+148%	+$1.05M	﹤0.01%	2002
2024 Q3	$587K	Sell	13,900 -4,000	-22%	-$194K	﹤0.01%	2740
2024 Q2	$1.05M	Sell	17,900 -1,300	-7%	-$74.3K	﹤0.01%	1947
2024 Q1	$1.19M	Buy	19,200 +700	+4%	+$44.3K	﹤0.01%	1935
2023 Q4	$1.26M	Sell	18,500 -78,800	-81%	-$4.91M	﹤0.01%	2261
2023 Q3	$5.43M	Sell	97,300 -43,200	-31%	-$2.45M	0.02%	899
2023 Q2	$9.02M	Buy	140,500 +119,700	+575%	+$6.59M	0.03%	567
2023 Q1	$1.07M	Buy	20,800 +15,700	+308%	+$674K	﹤0.01%	2084
2022 Q4	$183K	Sell	5,100 -65,700	-93%	-$2.22M	﹤0.01%	3930
2022 Q3	$1.8M	Sell	70,800 -18,600	-21%	-$465K	﹤0.01%	2008
2022 Q2	$1.92M	Buy	89,400 +72,800	+439%	+$1.8M	﹤0.01%	2104
2022 Q1	$529K	Sell	16,600 -27,000	-62%	-$747K	﹤0.01%	3753
2021 Q4	$1.28M	Sell	43,600 -224,000	-84%	-$5.7M	﹤0.01%	3087
2021 Q3	$5.94M	Buy	267,600 +7,400	+3%	+$174K	0.01%	1520
2021 Q2	$6.17M	Buy	260,200 +169,800	+188%	+$3.42M	0.01%	1503
2021 Q1	$1.76M	Buy	90,400 +51,000	+129%	+$1.02M	﹤0.01%	2611
2020 Q4	$688K	Sell	39,400 -26,000	-40%	-$408K	﹤0.01%	2988
2020 Q3	$895K	Buy	65,400 +22,800	+54%	+$324K	﹤0.01%	2304
2020 Q2	$648K	Buy	42,600 +39,100	+1,117%	+$551K	﹤0.01%	2416
2020 Q1	$39K	Sell	3,500 -54,500	-94%	-$755K	﹤0.01%	3878
2019 Q4	$799K	Sell	58,000 -79,600	-58%	-$1.07M	0.01%	2071
2019 Q3	$1.81M	Buy	137,600 +69,100	+101%	+$866K	0.01%	1285
2019 Q2	$825K	Buy	68,500 +9,900	+17%	+$113K	0.01%	1728
2019 Q1	$612K	Buy	58,600 +7,000	+14%	+$67.2K	0.01%	1787
2018 Q4	$396K	Sell	51,600 -20,300	-28%	-$176K	﹤0.01%	2152
2018 Q3	$784K	Sell	71,900 -40,800	-36%	-$496K	0.01%	1899
2018 Q2	$1.41M	Sell	112,700 -10,400	-8%	-$141K	0.01%	1394
2018 Q1	$1.65M	Buy	123,100 +96,700	+366%	+$1.29M	0.02%	1144
2017 Q4	$375K	Buy	26,400 +21,600	+450%	+$311K	﹤0.01%	2487
2017 Q3	$64K	Sell	4,800 -14,200	-75%	-$182K	﹤0.01%	3500
2017 Q2	$217K	Buy	19,000 +9,900	+109%	+$122K	﹤0.01%	2586
2017 Q1	$120K	Buy	9,100 +3,700	+69%	+$48.6K	﹤0.01%	2854
2016 Q4	$74K	Buy	5,400 +100	+2%	+$1.29K	﹤0.01%	3018
2016 Q3	$66K	Buy	5,300 +3,800	+253%	+$50.2K	﹤0.01%	3183
2016 Q2	$18K	Buy	1,500 +1,000	+200%	+$12.2K	﹤0.01%	3847
2016 Q1	$7K	Buy	+500	New	+$6.2K	﹤0.01%	4120
2015 Q3	–	Sell	-700	Closed	-$10K	–	5135
2015 Q2	$10K	Hold	700	–	–	﹤0.01%	4292
2015 Q1	$9K	Sell	700 -6,100	-90%	-$71.7K	﹤0.01%	4186
2014 Q4	$75K	Buy	+6,800	New	+$77K	﹤0.01%	3076
2014 Q1	–	Sell	-11,100	Closed	-$105K	–	5519
2013 Q4	$105K	Hold	11,100	–	–	﹤0.01%	2985
2013 Q3	$104K	Sell	11,100 -10,000	-47%	-$91.6K	﹤0.01%	2986
2013 Q2	$181K	Buy	+21,100	New	+$157K	﹤0.01%	2270

Other funds holding RMBS

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Invesco Atlanta, Georgia $1.02T AUM 30.18% 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

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

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

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

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

EIG

EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return

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

Group One Trading reduced its Rambus (RMBS) stake by 95% in Q1 2026, selling an estimated $684K and leaving 372 shares worth $32K. The position accounts for ﹤0.01% of the portfolio, ranked #5612.

Group One Trading first reported a position in RMBS in Q2 2013 and has held it in 31 quarters since. The position peaked at $2.6M in Q4 2021. 553 funds tracked by Wall St. Rank hold RMBS as of Q1 2026.

Group One Trading held 372 shares of Rambus worth $32K as of Q1 2026.
Group One Trading sold 6,857 Rambus shares in Q1 2026, an estimated $684K.
Rambus made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #5612 holding.
Group One Trading first reported a position in Rambus in Q2 2013 and has held it in 31 quarters since.
Group One Trading's Rambus position peaked at $2.6M in Q4 2021.
553 funds tracked by Wall St. Rank held Rambus as of Q1 2026.

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