Group One Trading
DAIO icon

Group One Trading’s Data I/O DAIO Stock Holding History

Group One Trading’s Portfolio DAIO Stock Details DAIO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$53.6K Buy
13,600
+13,300
+4,433% +$41.7K ﹤0.01% 5355
2026
Q1 		$759 Sell
300
-100
-25% -$291 ﹤0.01% 7258
2025
Q4 		$1.27K Hold
400
– – ﹤0.01% 7658
2025
Q3 		$1.34K Buy
+400
New +$1.29K ﹤0.01% 8006

Other funds holding DAIO

KWM
Kanen Wealth Management Coconut Creek, Florida $413M AUM 109.83% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
PM
Penbrook Management New York $157M AUM 46.57% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
KA
Kovack Advisors Ft. Lauderdale, Florida $2.08B AUM 38.95% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return
EIM
Essex Investment Management Boston, Massachusetts $763M AUM 108.51% 1-Year Est. Return

Group One Trading's DAIO Position: Q2 2026 in Review

Group One Trading increased its Data I/O (DAIO) stake by 6,350% in Q2 2026, buying an estimated $19.9K and bringing the position to 6,450 shares worth $25.4K. The position accounts for ﹤0.01% of the portfolio, ranked #5852.

Group One Trading first reported a position in DAIO in Q1 2026 and has held it in 2 quarters since. 35 funds tracked by Wall St. Rank hold DAIO as of Q2 2026.

  • Group One Trading held 6,450 shares of Data I/O worth $25.4K as of Q2 2026.
  • Group One Trading bought 6,350 Data I/O shares in Q2 2026, an estimated $19.9K.
  • Data I/O made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #5852 holding.
  • Group One Trading first reported a position in Data I/O in Q1 2026 and has held it in 2 quarters since.
  • 35 funds tracked by Wall St. Rank held Data I/O as of Q2 2026.

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