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	$25.4K	Buy	6,450 +6,350	+6,350%	+$19.9K	﹤0.01%	5852
2026 Q1	$253	Buy	+100	New	+$291	﹤0.01%	7382

Other funds holding DAIO

KWM

Kanen Wealth Management Coconut Creek, Florida $413M AUM 109.83% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Penbrook Management New York $157M AUM 46.57% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Kovack Advisors Ft. Lauderdale, Florida $2.08B AUM 38.95% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return

Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM

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. 34 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.
34 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.