JY
GEOS icon

Jeff Yass’s Geospace Technologies GEOS Stock Holding History

Jeff Yass’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
Q2 		$367K Buy
54,200
+29,300
+118% +$252K ﹤0.01% 10610
2026
Q1 		$304K Buy
24,900
+2,700
+12% +$37.7K ﹤0.01% 10822
2025
Q4 		$375K Buy
22,200
+900
+4% +$18.1K ﹤0.01% 9441
2025
Q3 		$404K Buy
21,300
+7,100
+50% +$115K ﹤0.01% 9451
2025
Q2 		$202K Buy
+14,200
New +$106K ﹤0.01% 11192
2023
Q3 		– Sell
-19,300
Closed -$150K – 12337
2023
Q2 		$150K Buy
+19,300
New +$153K ﹤0.01% 10577
2022
Q2 		– Sell
-17,200
Closed -$99K – 13260
2022
Q1 		$99K Buy
+17,200
New +$113K ﹤0.01% 11920
2019
Q3 		– Sell
-14,200
Closed -$215K – 10394
2019
Q2 		$215K Buy
+14,200
New +$195K ﹤0.01% 8993
2018
Q4 		– Sell
-11,500
Closed -$158K – 9281
2018
Q3 		$158K Buy
+11,500
New +$159K ﹤0.01% 8383
2015
Q4 		– Sell
-17,800
Closed -$246K – 9587
2015
Q3 		$246K Sell
17,800
-16,400
-48% -$273K ﹤0.01% 8371
2015
Q2 		$788K Sell
34,200
-35,000
-51% -$731K ﹤0.01% 6694
2015
Q1 		$1.14M Buy
69,200
+41,000
+145% +$851K ﹤0.01% 5474
2014
Q4 		$747K Buy
28,200
+3,400
+14% +$98.6K ﹤0.01% 6436
2014
Q3 		$872K Sell
24,800
-25,100
-50% -$1.05M ﹤0.01% 6194
2014
Q2 		$2.75M Buy
49,900
+11,000
+28% +$619K ﹤0.01% 4051
2014
Q1 		$2.57M Sell
38,900
-2,900
-7% -$222K ﹤0.01% 3899
2013
Q4 		$3.96M Buy
41,800
+34,000
+436% +$3.13M ﹤0.01% 3268
2013
Q3 		$658K Buy
+7,800
New +$581K ﹤0.01% 6000

Other funds holding GEOS

TCM
Tieton Capital Management Yakima, Washington $348M AUM 45.13% 1-Year Est. Return
GWI
Grace & White Inc Ny, New York $632M AUM 34.34% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
US Bancorp
US Bancorp Minneapolis, Minnesota $91.6B AUM 29.2% 1-Year Est. Return
SEI Investments
SEI Investments Oaks, Pennsylvania $113B AUM 34.64% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Jeff Yass's GEOS Position: Q2 2026 in Review

Jeff Yass reduced its Geospace Technologies (GEOS) stake by 77% in Q2 2026, selling an estimated $977K and leaving 33,029 shares worth $224K. The position accounts for ﹤0.01% of the portfolio, ranked #11706.

Jeff Yass first reported a position in GEOS in Q4 2013 and has held it in 24 quarters since. The position peaked at $3.91M in Q4 2025. 83 funds tracked by Wall St. Rank hold GEOS as of Q2 2026.

  • Jeff Yass held 33,029 shares of Geospace Technologies worth $224K as of Q2 2026.
  • Jeff Yass sold 113,366 Geospace Technologies shares in Q2 2026, an estimated $977K.
  • Geospace Technologies made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #11706 holding.
  • Jeff Yass first reported a position in Geospace Technologies in Q4 2013 and has held it in 24 quarters since.
  • Jeff Yass's Geospace Technologies position peaked at $3.91M in Q4 2025.
  • 83 funds tracked by Wall St. Rank held Geospace Technologies as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.