Jane Street
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Jane Street’s Data I/O DAIO Stock Holding History

Jane Street’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 		$69.8K Buy
+17,727
New +$55.6K ﹤0.01% 10786
2017
Q3 		– Sell
-11,715
Closed -$93K – 4516
2017
Q2 		$93K Buy
+11,715
New +$78.2K ﹤0.01% 4171

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

Jane Street's DAIO Position: Q2 2026 in Review

Jane Street opened a new position in Data I/O (DAIO) in Q2 2026: 17,727 shares worth $69.8K. The stake represents ﹤0.01% of the portfolio and ranks #10786 among its holdings. This is a return to the name: Jane Street previously reported a position in DAIO as recently as Q2 2017.

Jane Street first reported a position in DAIO in Q2 2017 and has held it in 2 quarters since. The position peaked at $93K in Q2 2017. 35 funds tracked by Wall St. Rank hold DAIO as of Q2 2026.

  • Jane Street held 17,727 shares of Data I/O worth $69.8K as of Q2 2026.
  • Data I/O was a new Jane Street position in Q2 2026.
  • Data I/O made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #10786 holding.
  • Jane Street first reported a position in Data I/O in Q2 2017 and has held it in 2 quarters since.
  • Jane Street's Data I/O position peaked at $93K in Q2 2017.
  • 35 funds tracked by Wall St. Rank held Data I/O as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.