ALTFEST L J & CO INC MX — MAGNACHIP SEMICONDUCTOR CORP

Ownership history in ALTFEST L J & CO INC  ·  10 quarters on record

AI Ownership Summary

ALTFEST L J & CO INC reported MAGNACHIP SEMICONDUCTOR CORP (MX) in 10 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 0.02% in 2023 Q4. The latest visible filing shows MX at 0.01% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this MX ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was ALTFEST L J & CO INC's position in MAGNACHIP SEMICONDUCTOR CORP, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

MX was reported at 0.01% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.02% in 2023 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

MX stock page ALTFEST L J & CO INC fund profile ALTFEST L J & CO INC full holdings
How ALTFEST L J & CO INC held MX — position size vs. price
% of Fund (quarterly)    MX price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 10 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 UNCHANGED — — — 47,809 — 0% 0.01% $134K 2026-04-28 $4.87
2025 Q4 UNCHANGED — — — 47,809 — 0% 0.01% $122K 2026-01-23 $2.99
2025 Q3 UNCHANGED — — — 47,809 — 0% 0.02% $150K 2025-10-21 $3.02
2025 Q2 ADDED — — — 47,809 +25,809 +117.3% 0.02% $190K 2025-08-08 $2.70
2025 Q1 UNCHANGED — — — 22,000 — 0% 0.01% $75K 2025-05-09 $3.25
2024 Q4 UNCHANGED — — — 22,000 — 0% 0.01% $88K 2025-02-07 $4.46
2024 Q3 UNCHANGED — — — 22,000 — 0% 0.01% $103K 2024-11-05 $4.08
2024 Q2 UNCHANGED — — — 22,000 — 0% 0.01% $107K 2024-08-07 $5.00
2024 Q1 UNCHANGED — — — 22,000 — 0% 0.02% $123K 2024-04-22 $4.85
2023 Q4 INITIATED — — — 22,000 — — 0.02% $165K 2024-01-18 $6.95

🏢 Other funds also holding MX

As of 2026 Q1 — sorted by position size

Polunin Capital Partners Ltd 3Y 7Y 0.04% SEVEN MILE ADVISORY 0.02% NFSG Corp 3Y 0.0% SBI Securities Co., Ltd. 0.0% UBS Group AG 3Y 7Y 0.0% SALEM INVESTMENT COUNSELORS INC 3Y 7Y 0.0% HSBC HOLDINGS PLC 3Y 7Y 0.0%

FAQ About ALTFEST L J & CO INC and MX

These are the practical questions this page is built to answer before you even open the full history table.

How long has ALTFEST L J & CO INC reported owning MX?

ALTFEST L J & CO INC reported MX across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported MX position in ALTFEST L J & CO INC's portfolio?

The largest reported portfolio weight for MX was 0.02% in 2023 Q4.

What is the latest reported MX position on this page?

The most recent filing on this page is 2026 Q1, when ALTFEST L J & CO INC reported 47,809 shares, equal to 0.01% of portfolio, with an estimated market value of $134K.

What does the chart on this MX ownership page compare?

The chart compares ALTFEST L J & CO INC's quarterly MX portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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