Main Management LLC SMH SEMICONDUCTORS

Ownership history in Main Management LLC  ·  44 quarters on record

AI Ownership Summary

Main Management LLC reported SEMICONDUCTORS (SMH) in 44 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 6.86% in 2025 Q2. The latest visible filing shows SMH at 0.45% 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. Older history is available after unlock; the visible window still shows the most recent pattern.

What this SMH ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Main Management LLC's position in SEMICONDUCTORS, 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
2025 Q4

SMH was reported at 0.45% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
6.86% in 2025 Q2

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 2025 Q4

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.

How Main Management LLC held SMH — position size vs. price
% of Fund (quarterly)    SMH price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 9 quarters  
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 89.5% +6.5% 17,409 -147,948 -89.5% 0.45% $6.3M 2026-02-14 (Est.) $407.72
2025 Q3 REDUCED 47.1% +11.9% 165,357 -147,297 -47.1% 3.95% $54.0M 2025-11-14 $343.91
2025 Q2 ADDED 312,654 +14,233 +4.8% 6.86% $87.2M 2025-08-12 $299.17
2025 Q1 REDUCED 298,421 -14,566 -4.7% 5.56% $63.1M 2025-05-15 $246.36
2024 Q4 ADDED 312,987 +10,610 +3.5% 6.19% $75.8M 2025-02-14 $251.80
2024 Q3 ADDED 302,377 +58,518 +24.0% 6.10% $74.2M 2024-11-15 $238.15
2024 Q2 ADDED 243,859 +2,342 +1.0% 5.26% $63.6M 2024-08-15 $244.52
2024 Q1 REDUCED 241,517 -1,039 -0.4% 4.64% $54.3M 2024-05-15 $232.15
2023 Q4 REDUCED 23.5% +30.4% 242,556 -74,475 -23.5% 4.16% $42.4M 2024-02-15 $201.10
35 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

FAQ About Main Management LLC and SMH

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

How long has Main Management LLC reported owning SMH?

Main Management LLC reported SMH across 9 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported SMH position in Main Management LLC's portfolio?

The largest reported portfolio weight for SMH was 6.86% in 2025 Q2.

What is the latest reported SMH position on this page?

The most recent filing on this page is 2025 Q4, when Main Management LLC reported 17,409 shares, equal to 0.45% of portfolio, with an estimated market value of $6.3M.

What does the chart on this SMH ownership page compare?

The chart compares Main Management LLC's quarterly SMH 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.

How well did Main Management LLC time their SMH position?

Based on 13F filing dates vs. subsequent SMH price moves, Main Management LLC correctly timed 16 out of 33 reported position changes (48%). The annualised alpha on SMH relative to SPY over the holding period was +15.4%.

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