Simplex Trading
GEOS icon

Simplex Trading’s Geospace Technologies GEOS Stock Holding History

Simplex Trading’s Portfolio GEOS Stock Details GEOS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$12.2K Buy
1,000
+500
+100% +$6.99K ﹤0.01% 7175
2025
Q4 		$8.46K Sell
500
-42,900
-99% -$862K ﹤0.01% 7093
2025
Q3 		$822K Buy
43,400
+36,000
+486% +$583K ﹤0.01% 3250
2025
Q2 		$105K Buy
+7,400
New +$55.2K ﹤0.01% 5185
2022
Q3 		– Sell
-2,400
Closed -$11K – 10245
2022
Q2 		$11K Buy
2,400
+700
+41% +$4K ﹤0.01% 8196
2022
Q1 		$9K Buy
+1,700
New +$11.2K ﹤0.01% 8956
2021
Q4 		– Sell
-300
Closed -$2K – 10801
2021
Q3 		$2K Hold
300
– – ﹤0.01% 9527
2021
Q2 		$2K Buy
+300
New +$2.47K ﹤0.01% 9708
2020
Q3 		– Sell
-20
Closed -$15K – 8030
2020
Q2 		$15K Sell
20
-2
-9% -$13 ﹤0.01% 6409
2020
Q1 		$14K Buy
22
+19
+633% +$226 ﹤0.01% 6228
2019
Q4 		$5K Sell
3
-13
-81% -$197 ﹤0.01% 6691
2019
Q3 		$24K Buy
16
+1
+7% +$14 ﹤0.01% 5669
2019
Q2 		$22K Buy
+15
New +$206 ﹤0.01% 5529
2019
Q1 		– Sell
-5
Closed -$5K – 7343
2018
Q4 		$5K Hold
5
– – ﹤0.01% 6205
2018
Q3 		$6K Buy
+5
New +$69 ﹤0.01% 6673
2016
Q2 		– Sell
-2
Closed -$3K – 6016
2016
Q1 		$3K Hold
2
– – ﹤0.01% 4455
2015
Q4 		$3K Sell
2
-9
-82% -$128 ﹤0.01% 4226
2015
Q3 		$4K Hold
11
– – ﹤0.01% 4148
2015
Q2 		$1K Buy
+11
New +$230 ﹤0.01% 4652
2015
Q1 		– Sell
-6
Closed -$8K – 5155
2014
Q4 		$8K Buy
+6
New +$174 ﹤0.01% 2732

Other funds holding GEOS

DGI
Disciplined Growth Investors Minneapolis, Minnesota $4.89B AUM 33.85% 1-Year Est. Return
TCM
Tieton Capital Management Yakima, Washington $299M AUM 54.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
GWI
Grace & White Inc Ny, New York $632M AUM 34.34% 1-Year Est. Return
SEI Investments
SEI Investments Oaks, Pennsylvania $108B AUM 26.14% 1-Year Est. Return
First Eagle Investment Management
First Eagle Investment Management New York $59B AUM 32.99% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
MC
Moors & Cabot Boston, Massachusetts $2.34B AUM 30.42% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

Simplex Trading's GEOS Position: Q1 2026 in Review

Simplex Trading reduced its Geospace Technologies (GEOS) stake by 80% in Q1 2026, selling an estimated $22.4K and leaving 396 shares worth $4.83K. The position accounts for ﹤0.01% of the portfolio, ranked #7915.

Simplex Trading first reported a position in GEOS in Q4 2014 and has held it in 24 quarters since. The position peaked at $115K in Q4 2019. 86 funds tracked by Wall St. Rank hold GEOS as of Q1 2026.

  • Simplex Trading held 396 shares of Geospace Technologies worth $4.83K as of Q1 2026.
  • Simplex Trading sold 1,605 Geospace Technologies shares in Q1 2026, an estimated $22.4K.
  • Geospace Technologies made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #7915 holding.
  • Simplex Trading first reported a position in Geospace Technologies in Q4 2014 and has held it in 24 quarters since.
  • Simplex Trading's Geospace Technologies position peaked at $115K in Q4 2019.
  • 86 funds tracked by Wall St. Rank held Geospace Technologies as of Q1 2026.

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