Jane Street’s First Trust Mid Cap Core AlphaDEX Fund FNX Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q4
Sell
-3,198
Closed -$401K 11544
2025
Q3
$401K Buy
+3,198
New +$386K ﹤0.01% 8312
2025
Q2
Sell
-2,454
Closed -$267K 10028
2025
Q1
$267K Buy
+2,454
New +$283K ﹤0.01% 7988
2024
Q3
Sell
-2,461
Closed -$267K 9827
2024
Q2
$267K Buy
+2,461
New +$269K ﹤0.01% 7971
2024
Q1
Sell
-3,888
Closed -$406K 9473
2023
Q4
$406K Buy
+3,888
New +$365K ﹤0.01% 7138
2020
Q2
Sell
-19,714
Closed -$951K 7210
2020
Q1
$951K Buy
19,714
+9,838
+100% +$638K ﹤0.01% 2846
2019
Q4
$716K Buy
9,876
+2,718
+38% +$190K ﹤0.01% 3230
2019
Q3
$483K Sell
7,158
-31,734
-82% -$2.15M ﹤0.01% 3578
2019
Q2
$2.68M Buy
38,892
+35,067
+917% +$2.38M ﹤0.01% 1589
2019
Q1
$256K Sell
3,825
-23,187
-86% -$1.52M ﹤0.01% 4419
2018
Q4
$1.56M Buy
27,012
+4,365
+19% +$279K ﹤0.01% 2009
2018
Q3
$1.62M Sell
22,647
-26,848
-54% -$1.91M ﹤0.01% 2134
2018
Q2
$3.39M Buy
49,495
+22,853
+86% +$1.54M 0.01% 1383
2018
Q1
$1.74M Sell
26,642
-25,586
-49% -$1.7M ﹤0.01% 2018
2017
Q4
$3.43M Buy
52,228
+25,399
+95% +$1.62M 0.01% 1122
2017
Q3
$1.66M Buy
26,829
+17,229
+179% +$1.03M 0.01% 1774
2017
Q2
$568K Sell
9,600
-39,883
-81% -$2.34M ﹤0.01% 2870
2017
Q1
$2.89M Buy
49,483
+24,176
+96% +$1.4M 0.01% 1059
2016
Q4
$1.43M Buy
25,307
+18,827
+291% +$1.02M 0.01% 1645
2016
Q3
$342K Sell
6,480
-3,533
-35% -$185K ﹤0.01% 3165
2016
Q2
$506K Sell
10,013
-96,986
-91% -$4.85M ﹤0.01% 2751
2016
Q1
$5.31M Buy
106,999
+12,763
+14% +$585K 0.03% 535
2015
Q4
$4.53M Buy
94,236
+48,586
+106% +$2.42M 0.03% 546
2015
Q3
$2.19M Sell
45,650
-23,890
-34% -$1.23M 0.01% 900
2015
Q2
$3.75M Buy
+69,540
New +$3.83M 0.02% 610
2014
Q3
Sell
-41,078
Closed -$2.2M 2704
2014
Q2
$2.2M Buy
+41,078
New +$2.11M 0.03% 506

Other funds holding FNX

Jane Street's FNX Position: Q4 2025 in Review

Jane Street sold out of First Trust Mid Cap Core AlphaDEX Fund (FNX) in Q4 2025, closing a stake of 3,198 shares — an estimated $401K sold.

Jane Street first reported a position in FNX in Q2 2014 and held it in 25 quarters. The position peaked at $5.31M in Q1 2016. 196 funds tracked by Wall St. Rank hold FNX as of Q4 2025.

  • Jane Street reported no remaining First Trust Mid Cap Core AlphaDEX Fund position as of Q4 2025 after selling out during the quarter.
  • Jane Street sold 3,198 First Trust Mid Cap Core AlphaDEX Fund shares in Q4 2025, an estimated $401K.
  • Jane Street first reported a position in First Trust Mid Cap Core AlphaDEX Fund in Q2 2014 and held it in 25 quarters.
  • Jane Street's First Trust Mid Cap Core AlphaDEX Fund position peaked at $5.31M in Q1 2016.
  • 196 funds tracked by Wall St. Rank held First Trust Mid Cap Core AlphaDEX Fund as of Q4 2025.

Based on Jane Street's 13F filing for Q4 2025, filed 12 Feb 2026.