SG Capital Management LLC CALX — CALIX INC COM

Ownership history in SG Capital Management LLC  ·  19 quarters on record

AI Ownership Summary

SG Capital Management LLC reported CALIX INC COM (CALX) in 19 quarterly 13F filings from 2024 Q2 through 2026 Q1. Peak portfolio weight reached 2.65% in 2024 Q2. The latest visible filing shows CALX at 0.51% 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 CALX ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was SG Capital Management LLC's position in CALIX INC COM, 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

CALX was reported at 0.51% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
2.65% in 2024 Q2

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

Time in book
Holding Window
2024 Q2 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.

CALX stock page SG Capital Management LLC fund profile SG Capital Management LLC full holdings
How SG Capital Management LLC held CALX — position size vs. price
% of Fund (quarterly)    CALX 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)
2026 Q1 ADDED — — — 157,399 +36,936 +30.7% 0.51% $7.7M 2026-05-08 $43.24
2025 Q2 REDUCED 64.8% +15.4% ❌ 120,463 -221,277 -64.8% 0.44% $6.4M 2025-08-08 $56.56
2025 Q1 ADDED — — — 341,740 +143,240 +72.2% 1.11% $12.1M 2025-05-15 $45.25
2025 Q1 REDUCED 65.3% +50.1% ❌ 198,500 -373,724 -65.3% 0.65% $7.0M 2025-05-15 $45.25
2024 Q4 ADDED — — — 572,224 +73,424 +14.7% 1.93% $20.0M 2025-02-14 $39.84
2024 Q4 ADDED — — — 498,800 +189,900 +61.5% 1.68% $17.4M 2025-02-14 $39.84
2024 Q3 REDUCED 29.2% -10.1% ✅ 308,900 -127,483 -29.2% 1.70% $12.0M 2024-11-14 $30.13
2024 Q3 REDUCED — — — 436,383 -6,504 -1.5% 2.40% $16.9M 2024-11-14 $30.13
2024 Q2 ADDED — — — 442,887 +69,472 +18.6% 2.65% $15.7M 2024-08-14 $37.06
10 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding CALX

As of 2026 Q1 — sorted by position size

Divisar Capital Management LLC 3Y 7Y 4.25% Harvey Partners, LLC 3Y 7Y 2.23% G2 Investment Partners Management LLC 3Y 7Y 1.94% Penn Capital Management Company, LLC 3Y 7Y 1.44% PARADIGM CAPITAL MANAGEMENT INC/NY 3Y 7Y 1.44% MARATHON CAPITAL MANAGEMENT 3Y 7Y 0.9% FORMULA GROWTH LTD 3Y 7Y 0.84% Counterpoint Mutual Funds LLC 3Y 0.63% Divisadero Street Capital Management, LP 3Y 0.63% CONGRESS ASSET MANAGEMENT CO 3Y 7Y 0.58%

FAQ About SG Capital Management LLC and CALX

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

How long has SG Capital Management LLC reported owning CALX?

SG Capital Management LLC reported CALX across 9 quarterly 13F filings, from 2024 Q2 through 2026 Q1.

What was the largest reported CALX position in SG Capital Management LLC's portfolio?

The largest reported portfolio weight for CALX was 2.65% in 2024 Q2.

What is the latest reported CALX position on this page?

The most recent filing on this page is 2026 Q1, when SG Capital Management LLC reported 157,399 shares, equal to 0.51% of portfolio, with an estimated market value of $7.7M.

What does the chart on this CALX ownership page compare?

The chart compares SG Capital Management LLC's quarterly CALX 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 SG Capital Management LLC time their CALX position?

Based on 13F filing dates vs. subsequent CALX price moves, SG Capital Management LLC correctly timed 8 out of 18 reported position changes (44%). The annualised alpha on CALX relative to SPY over the holding period was +24.6%.

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