Dimensional Fund Advisors
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Dimensional Fund Advisors’s Data I/O DAIO Stock Holding History

Dimensional Fund Advisors’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
Q1 		$356K Sell
140,679
-39,570
-22% -$115K ﹤0.01% 2989
2025
Q4 		$571K Sell
180,249
-80,876
-31% -$243K ﹤0.01% 2950
2025
Q3 		$872K Sell
261,125
-8,985
-3% -$29.1K ﹤0.01% 2914
2025
Q2 		$829K Buy
270,110
+12,758
+5% +$32.1K ﹤0.01% 2921
2025
Q1 		$631K Buy
257,352
+8,381
+3% +$23.4K ﹤0.01% 2966
2024
Q4 		$690K Hold
248,971
– – ﹤0.01% 2985
2024
Q3 		$640K Sell
248,971
-4
-0% -$10 ﹤0.01% 2995
2024
Q2 		$687K Sell
248,975
-16,213
-6% -$50.3K ﹤0.01% 2973
2024
Q1 		$933K Sell
265,188
-5,010
-2% -$16.4K ﹤0.01% 2934
2023
Q4 		$794K Hold
270,198
– – ﹤0.01% 2969
2023
Q3 		$1.03M Buy
270,198
+530
+0.2% +$2.15K ﹤0.01% 2917
2023
Q2 		$1.16M Sell
269,668
-1,944
-0.7% -$8.61K ﹤0.01% 2901
2023
Q1 		$1.35M Sell
271,612
-6,288
-2% -$27.5K ﹤0.01% 2836
2022
Q4 		$1.1K Buy
277,900
+5,553
+2% +$20.1K ﹤0.01% 2877
2022
Q3 		$760K Buy
272,347
+9,053
+3% +$29.1K ﹤0.01% 2958
2022
Q2 		$808K Sell
263,294
-6,669
-2% -$22.1K ﹤0.01% 2959
2022
Q1 		$1.15M Sell
269,963
-14,769
-5% -$69K ﹤0.01% 2962
2021
Q4 		$1.31M Sell
284,732
-18,394
-6% -$98.4K ﹤0.01% 2958
2021
Q3 		$1.97M Sell
303,126
-15,692
-5% -$95.6K ﹤0.01% 2858
2021
Q2 		$2.17M Sell
318,818
-4,110
-1% -$24.4K ﹤0.01% 2850
2021
Q1 		$1.75M Sell
322,928
-34,480
-10% -$184K ﹤0.01% 2891
2020
Q4 		$1.47M Sell
357,408
-39,436
-10% -$152K ﹤0.01% 2889
2020
Q3 		$1.26M Sell
396,844
-8,328
-2% -$29.3K ﹤0.01% 2869
2020
Q2 		$1.36M Sell
405,172
-11,344
-3% -$35.5K ﹤0.01% 2858
2020
Q1 		$1.17M Sell
416,516
-2,900
-0.7% -$10.6K ﹤0.01% 2854
2019
Q4 		$1.76M Sell
419,416
-14,028
-3% -$56.2K ﹤0.01% 2889
2019
Q3 		$1.69M Buy
433,444
+771
+0.2% +$3.11K ﹤0.01% 2899
2019
Q2 		$1.95M Sell
432,673
-7,217
-2% -$34.5K ﹤0.01% 2909
2019
Q1 		$2.44M Buy
439,890
+7,819
+2% +$46K ﹤0.01% 2846
2018
Q4 		$2.16M Sell
432,071
-2,748
-0.6% -$13.6K ﹤0.01% 2848
2018
Q3 		$2.27M Buy
434,819
+5,610
+1% +$31.5K ﹤0.01% 2897
2018
Q2 		$2.73M Buy
429,209
+48,162
+13% +$340K ﹤0.01% 2813
2018
Q1 		$2.83M Buy
381,047
+55,208
+17% +$549K ﹤0.01% 2789
2017
Q4 		$3.92M Sell
325,839
-21,897
-6% -$259K ﹤0.01% 2700
2017
Q3 		$3.46M Buy
347,736
+22,023
+7% +$188K ﹤0.01% 2707
2017
Q2 		$2.59M Buy
325,713
+44,089
+16% +$294K ﹤0.01% 2793
2017
Q1 		$1.41M Sell
281,624
-18,868
-6% -$87.3K ﹤0.01% 2905
2016
Q4 		$1.26M Hold
300,492
– – ﹤0.01% 2923
2016
Q3 		$1.05M Hold
300,492
– – ﹤0.01% 2927
2016
Q2 		$706K Hold
300,492
– – ﹤0.01% 2993
2016
Q1 		$775K Hold
300,492
– – ﹤0.01% 2972
2015
Q4 		$757K Hold
300,492
– – ﹤0.01% 3020
2015
Q3 		$700K Hold
300,492
– – ﹤0.01% 3061
2015
Q2 		$1.03M Buy
300,492
+1,365
+0.5% +$4.64K ﹤0.01% 3015
2015
Q1 		$1.11M Sell
299,127
-3,707
-1% -$12.2K ﹤0.01% 2964
2014
Q4 		$1.03M Sell
302,834
-3,144
-1% -$10.5K ﹤0.01% 2998
2014
Q3 		$1.01M Hold
305,978
– – ﹤0.01% 3008
2014
Q2 		$921K Sell
305,978
-2,483
-0.8% -$6.66K ﹤0.01% 3055
2014
Q1 		$740K Sell
308,461
-1,500
-0.5% -$4.15K ﹤0.01% 3108
2013
Q4 		$797K Sell
309,961
-5,317
-2% -$14.9K ﹤0.01% 3072
2013
Q3 		$968K Hold
315,278
– – ﹤0.01% 3048
2013
Q2 		$703K Buy
+315,278
New +$573K ﹤0.01% 3091

Other funds holding DAIO

KWM
Kanen Wealth Management Coconut Creek, Florida $278M AUM 38.85% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
PM
Penbrook Management New York $132M AUM 29.91% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
KA
Kovack Advisors Ft. Lauderdale, Florida $1.87B AUM 29.51% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
EIM
Essex Investment Management Boston, Massachusetts $632M AUM 95.36% 1-Year Est. Return
VFT
Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM
SPIA
Steward Partners Investment Advisory New York $19.6B AUM 22.89% 1-Year Est. Return

Dimensional Fund Advisors's DAIO Position: Q1 2026 in Review

Dimensional Fund Advisors reduced its Data I/O (DAIO) stake by 22% in Q1 2026, selling an estimated $115K and leaving 140,679 shares worth $356K. The position accounts for ﹤0.01% of the portfolio, ranked #2989.

Dimensional Fund Advisors first reported a position in DAIO in Q2 2013 and has held it in 52 quarters since. The position peaked at $3.92M in Q4 2017. 29 funds tracked by Wall St. Rank hold DAIO as of Q1 2026.

  • Dimensional Fund Advisors held 140,679 shares of Data I/O worth $356K as of Q1 2026.
  • Dimensional Fund Advisors sold 39,570 Data I/O shares in Q1 2026, an estimated $115K.
  • Data I/O made up ﹤0.01% of Dimensional Fund Advisors's portfolio in Q1 2026, its #2989 holding.
  • Dimensional Fund Advisors first reported a position in Data I/O in Q2 2013 and has held it in 52 quarters since.
  • Dimensional Fund Advisors's Data I/O position peaked at $3.92M in Q4 2017.
  • 29 funds tracked by Wall St. Rank held Data I/O as of Q1 2026.

Based on Dimensional Fund Advisors's 13F filing for Q1 2026, filed 7 May 2026.