Simplex Trading’s Research Frontiers REFR Stock Holding History

Simplex Trading’s Portfolio REFR Stock Details REFR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2022 Q4	–	Sell	-2,500	Closed	-$5K	–	10204
2022 Q3	$5K	Hold	2,500	–	–	﹤0.01%	8805
2022 Q2	$4K	Buy	+2,500	New	+$4.53K	﹤0.01%	9019
2021 Q4	–	Sell	-8,500	Closed	-$19K	–	11273
2021 Q3	$19K	Hold	8,500	–	–	﹤0.01%	8488
2021 Q2	$20K	Buy	+8,500	New	+$21.2K	﹤0.01%	8589
2021 Q1	–	Sell	-20	Closed	-$5K	–	9826
2020 Q4	$5K	Sell	20 -70	-78%	-$198	﹤0.01%	7729
2020 Q3	$24K	Buy	90 +35	+64%	+$101	﹤0.01%	6255
2020 Q2	$22K	Sell	55 -77	-58%	-$286	﹤0.01%	6150
2020 Q1	$30K	Buy	132 +69	+110%	+$221	﹤0.01%	5628
2019 Q4	$18K	Buy	+63	New	+$202	﹤0.01%	6031
2019 Q3	–	Sell	-40	Closed	-$13K	–	7767
2019 Q2	$13K	Buy	40 +11	+38%	+$31	﹤0.01%	5954
2019 Q1	$6K	Buy	+29	New	+$67	﹤0.01%	6423
2016 Q2	–	Sell	-20	Closed	-$10K	–	6348
2016 Q1	$10K	Buy	+20	New	+$90	﹤0.01%	3470
2015 Q4	–	Sell	-200	Closed	-$6K	–	6007
2015 Q3	$6K	Buy	+200	New	+$1.06K	﹤0.01%	3862

Other funds holding REFR

MOS

MGO One Seven Beachwood, Ohio $4.98B AUM 22.72% 1-Year Est. Return

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Focus Partners Wealth Boston, Massachusetts $89.9B AUM 20.5% 1-Year Est. Return

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

VFT

Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

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

SRC

Shufro Rose & Co New York $1.47B AUM 19.38% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Simplex Trading's REFR Position: Q1 2026 in Review

Simplex Trading opened a new position in Research Frontiers (REFR) in Q1 2026: 332 shares worth $305. The stake represents ﹤0.01% of the portfolio and ranks #8794 among its holdings. This is a return to the name: Simplex Trading previously reported a position in REFR as recently as Q2 2024.

Simplex Trading first reported a position in REFR in Q3 2015 and has held it in 18 quarters since. The position peaked at $72K in Q4 2019. 35 funds tracked by Wall St. Rank hold REFR as of Q1 2026.

Simplex Trading held 332 shares of Research Frontiers worth $305 as of Q1 2026.
Research Frontiers was a new Simplex Trading position in Q1 2026.
Research Frontiers made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #8794 holding.
Simplex Trading first reported a position in Research Frontiers in Q3 2015 and has held it in 18 quarters since.
Simplex Trading's Research Frontiers position peaked at $72K in Q4 2019.
35 funds tracked by Wall St. Rank held Research Frontiers as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.