First Trust Exchange-Traded AlphaDEX Fund - First Trust Mid Cap Core AlphaDEX Fund
US ˙ NasdaqGM ˙ US33735B1089

SecurityFNX / First Trust Exchange-Traded AlphaDEX Fund - First Trust Mid Cap Core AlphaDEX Fund
InstitutionSigma Planning Corp
Latest Disclosed Ownership3,629 shares
Latest Disclosed Value $ 465,372
Sigma Planning Corp reports 17.67% decrease in ownership of FNX / First Trust Exchange-Traded AlphaDEX Fund - First Trust Mid Cap Core AlphaDEX Fund

On May 4, 2026 - Sigma Planning Corp filed a 13F-HR form disclosing ownership of 3,629 shares of First Trust Exchange-Traded AlphaDEX Fund - First Trust Mid Cap Core AlphaDEX Fund (US:FNX) valued at $465,392 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 4,408 shares of First Trust Exchange-Traded AlphaDEX Fund - First Trust Mid Cap Core AlphaDEX Fund. This represents a change in shares of -17.67% during the quarter. The current value of the position is $509,927 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-04 2026-03-31 13F FIRST TR EXCHANGE-TRADED ALP COM SHS 33735B108 3,629 -779 -17.67 465 -16.22 0.0129
2026-01-30 2025-12-31 13F FIRST TR EXCHANGE-TRADED ALP COM SHS 33735B108 4,408 -676 -13.30 555 -12.87 0.0153
2025-11-10 2025-09-30 13F FIRST TR EXCHANGE-TRADED ALP COM SHS 33735B108 5,084 3,227 173.77 638 199.06 0.0181
2025-08-05 2025-06-30 13F FIRST TR EXCHANGE-TRADED ALP COM SHS 33735B108 1,857 -717 -27.86 213 -23.93 0.0064
2025-05-02 2025-03-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 2,574 -3,292 -56.12 281 -58.70 0.0089
2025-02-03 2024-12-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 5,866 -138 -2.30 679 -3.56 0.0213
2024-11-04 2024-09-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 6,004 278 4.86 703 13.20 0.0215
2024-08-06 2024-06-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 5,726 -386 -6.32 621 -10.26 0.0197
2024-05-02 2024-03-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 6,112 6,112 693 0.0218
2024-02-01 2023-12-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 0 -5,263 -100.00 0 -100.00
2023-11-06 2023-09-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 5,263 -2,980 -36.15 485 -39.04 0.0182
2023-08-02 2023-06-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 8,243 -17,736 -68.27 794 -66.02 0.0285
2023-05-08 2023-03-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 25,979 271 1.05 2,337 3.54 0.0777
2023-01-24 2022-12-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 25,708 -1,146 -4.27 2,258 4.68 0.0807
2022-11-10 2022-09-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 26,854 3,840 16.69 2,156 12.00 0.0822
2022-08-11 2022-06-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 23,014 3,321 16.86 1,925 -0.36 0.0669
2022-04-20 2022-03-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 19,693 5,758 41.32 1,932 34.82 0.0579
2022-02-02 2021-12-31 13F FIRST TR MID CAP CORE ALPHADEX FD ETF 33735B108 13,935 -5,370 -27.82 1,433 -24.02 0.0399
2021-10-28 2021-09-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 19,305 -13,157 -40.53 1,886 -41.97 0.0567
2021-08-13 2021-06-30 13F FIRST TR MID CAP CORE ALPHADEX FD ETF 33735B108 32,462 17,104 111.37 3,250 125.54 0.0969
2021-05-06 2021-03-31 13F FIRST TR MID CAP CORE ALPHADEX FD ETF 33735B108 15,358 15,358 1,441 0.0460
2020-07-31 2020-06-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 0 -4,639 -100.00 0 -100.00
2020-05-01 2020-03-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 4,639 502 12.13 224 -25.33 0.0133
2020-02-03 2019-12-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 4,137 -5 -0.12 300 7.14 0.0127
2019-11-01 2019-09-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 4,142 -3,652 -46.86 280 -47.76 0.0134
2019-08-01 2019-06-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 7,794 2,199 39.30 536 42.93 0.0276
2019-05-01 2019-03-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 5,595 5,595 375 0.0213
2017-01-23 2016-12-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 0 -3,999 -100.00 0 -100.00
2016-11-07 2016-09-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 3,999 3 0.08 211 4.46 0.0250
2016-07-22 2016-06-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 3,996 -1,426 -26.30 202 -24.91 0.0263
2016-04-18 2016-03-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 5,422 85 1.59 269 4.67 0.0368
2016-01-20 2015-12-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 5,337 -6,407 -54.56 257 -54.51 0.0360
2015-11-02 2015-09-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 11,744 6,228 112.91 565 90.24 0.0895
2015-07-14 2015-06-30 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 5,516 -20 -0.36 297 -1.66 0.0410
2015-04-23 2015-03-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 5,536 46 0.84 302 4.14 0.0400
2015-02-13 2014-12-31 13F FIRST TR MID CAP CORE ALPHAD COM SHS 33735B108 5,490 5,490 290 0.0383
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.