What is the 13F Pro Quality Score for CALX?

13F Pro ranks CALIX, INC (CALX) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View CALX's current score at https://13fpro.ai/research/CALX (free sign-up required for the full ranking).

Which hedge funds own the most CALX stock?

Based on the most recent Form 13F-HR filings on SEC EDGAR, the largest reported institutional holders of CALX include BlackRock,, VANGUARD PORTFOLIO MANAGEMENT, ALLIANCEBERNSTEIN L.P.. Holdings are reported quarterly within 45 days of quarter-end and updated on https://13fpro.ai/research/CALX as soon as new 13F filings post.

Where does 13F Pro source CALX data?

All CALIX, INC fundamentals and ownership data come directly from SEC EDGAR. CALIX, INC files with the SEC under CIK 1406666. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is CALX in?

CALIX, INC (CALX) is classified in the Communication Services sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/communication-services.

How often is CALX research updated on 13F Pro?

CALX's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

CALIX, INC(CALX)Stock Analysis

AI analysis on 2,800+ stocks →Deep AI analysis on 2,800+ stocks →

Communication Services →NYSE

Institutional-grade research for retail investors

SEC EDGAR: CIK 1406666 CALX stock profile & AI dashboard →

13F Pro Quality Score

46.8/100

Rank #1,629 of 2,879 stocks

View Communication Services peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Aug 14, 2026.

Revenue Growth

33.8/100

Profitability

50.1/100

Balance Sheet

52.0/100

Earnings Quality

17.0/100

Free Cash Flow

58.9/100

Institutional Flow

84.2/100

Revenue Scale

49.7/100

Dilution Risk

18.5/100

CALX Stock Analysis & AI Quality Score

AI stock analysis and institutional research for CALIX, INC (CALX), a Communication Services sector company. 13F Pro's AI-powered ranking engine scores CALX at 46.8/100 on a 32-signal composite quality model, placing it at rank #1,629 of 2,879 stocks — the bottom half of the AI-ranked universe. CALX scores in the top quartile across institutional flow (84.2). Areas of concern include earnings quality (17.0) and revenue growth (33.8), which score below median versus the broader universe. Shareholder dilution risk is elevated at 18.5/100, reflecting ongoing share issuance or stock-based compensation. Based on the latest XBRL financial filings (Q1 2026), CALIX, INC reports quarterly revenue of $280.0M, net income of $11.2M, an operating margin of 4.5%. Top institutional holders of CALX by reported 13-F value include BlackRock,, VANGUARD PORTFOLIO MANAGEMENT, ALLIANCEBERNSTEIN L.P., based on the most recent SEC filings. CALX trades on the NYSE exchange and files with the SEC under CIK 1406666. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate CALX daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for CALIX, INC directly from SEC EDGAR. CALIX, INC's 13F Pro composite quality score has ranged between 8 and 76 since 2021, currently 46.8 — a stable long-term trajectory across 56 quarterly and live scoring snapshots.

✦

Fun facts about CALIX, INC

Quirks, history, and lore behind CALX — the kind of stuff that makes a stock memorable.

1
The Basics
U.S. technology company · listed on NYSE · headquartered in California · sells hardware and software to broadband service providers.
2
The Numbers
Annual revenue in the range of roughly $600–700 million — a small-cap player punching above its weight in a market dominated by telecom giants.
3
The History
Founded around 1999, it survived the dot-com bust by laser-focusing on fiber and cloud-driven access networks for community broadband providers.
4
The Secret
Its real pitch isn't just hardware — it wraps everything in a cloud platform that lets small and mid-size telecoms manage their entire network like a software subscription.
5
The Lore
It has become a quiet darling of the rural broadband buildout, riding billions in federal funding aimed at closing the digital divide across underserved America.
6
The Giveaway
Its name sounds like a chemical element, its ticker is four letters starting with CALX, and its customers are the phone and internet companies you've probably never heard of — but rely on every day.

▶ Think you know your stocks? Play the Daily Ticker

Revenue

Q1 2026

$280.0M

Net Income

Q1 2026

$11.2M

Free Cash Flow

Q1 2026

$6.5M

Operating Margin

Q1 2026

4.5%

ROIC

Q1 2026

1.7%

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro+

Revenue

+20.3% YoY

$1.00BFY 2025

FY20 $541.2MFY21 $679.4MFY24 $831.5MFY25 $1.00B

Net Income

+160.1% YoY

$17.9MFY 2025

FY20 $33.5MFY21 $238.4MFY24 $-29.7MFY25 $17.9M

Operating Income

+148.8% YoY

$21.0MFY 2025

FY20 $36.8MFY21 $73.9MFY24 $-43.0MFY25 $21.0M

EPS (Diluted)

+157.8% YoY

$0.26FY 2025

FY20 $0.54FY21 $3.51FY24 $-0.45FY25 $0.26

Total Assets

+12.7% YoY

$1.06BFY 2025

FY20 $427.4MFY21 $742.0MFY24 $939.3MFY25 $1.06B

Op. Cash Flow

+97.3% YoY

$135.0MFY 2025

FY20 $51.4MFY21 $56.8MFY24 $68.4MFY25 $135.0M

Metric	FY 2025	FY 2024	FY 2021	FY 2020	FY 2019	FY 2018
Revenue	$1.00B +20.3%	$831.5M +22.4%	$679.4M +25.5%	$541.2M +27.6%	$424.3M -3.8%	$441.3M
Net Income	$17.9M +160.1%	$-29.7M -112.5%	$238.4M +611.9%	$33.5M	—	—
Operating Income	$21.0M +148.8%	$-43.0M -158.2%	$73.9M +100.7%	$36.8M +339.2%	$-15.4M +16.8%	$-18.5M
EPS (Diluted)	$0.26 +157.8%	$-0.45 -112.8%	$3.51 +550.0%	$0.54 +268.8%	$-0.32 +13.5%	$-0.37
Total Assets	$1.06B +12.7%	$939.3M +26.6%	$742.0M +73.6%	$427.4M +34.9%	$316.8M -0.1%	$317.1M
Operating Cash Flow	$135.0M +97.3%	$68.4M +20.4%	$56.8M +10.5%	$51.4M +1004.6%	$4.7M +30.7%	$3.6M

Get alerted when CALX's score changes

Free account: watchlist tracking, the daily AI brief, and the AI screener.

Passwordless sign-in · Payments by Stripe · Auth by Clerk

Available Research

13F Pro tracks comprehensive data for CALIX, INC including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of CALX

BlackRock, Inc.
$546.4M11,153,403 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$271.1M5,533,754 sh
ALLIANCEBERNSTEIN L.P.
$172.1M3,251,128 sh
VANGUARD CAPITAL MANAGEMENT LLC
$131.6M2,686,525 sh
STATE STREET CORP
$127.6M2,602,333 sh
MILLENNIUM MANAGEMENT LLC
$93.3M1,903,972 sh
CONGRESS ASSET MANAGEMENT CO /MA
$80.6M1,644,289 sh
WESTFIELD CAPITAL MANAGEMENT CO LP
$75.7M1,546,101 sh
GEODE CAPITAL MANAGEMENT, LLC
$70.3M1,435,706 sh
DIMENSIONAL FUND ADVISORS LP
$59.7M1,218,495 sh

Fund	Value	Shares
BlackRock, Inc.	$546.4M	11,153,403
VANGUARD PORTFOLIO MANAGEMENT LLC	$271.1M	5,533,754
ALLIANCEBERNSTEIN L.P.	$172.1M	3,251,128
VANGUARD CAPITAL MANAGEMENT LLC	$131.6M	2,686,525
STATE STREET CORP	$127.6M	2,602,333
MILLENNIUM MANAGEMENT LLC	$93.3M	1,903,972
CONGRESS ASSET MANAGEMENT CO /MA	$80.6M	1,644,289
WESTFIELD CAPITAL MANAGEMENT CO LP	$75.7M	1,546,101
GEODE CAPITAL MANAGEMENT, LLC	$70.3M	1,435,706
DIMENSIONAL FUND ADVISORS LP	$59.7M	1,218,495

More Communication Services Companies

View all Communication Services →

ACCO

ACCO BRANDS Corp

ACEL

Accel Entertainment, Inc.

ARRAY DIGITAL INFRASTRUCTURE, INC.

ADEA

Adeia Inc.

AEHL

Antelope Enterprise Holdings Ltd

AHMA

AMBITIONS ENTERPRISE MANAGEMENT CO. L.L.C

AIBZ

Bitzero Holdings Inc.

AIFA

All In FutureTech Alliance, Inc.

Put CALX on your watchlist

Track score changes the day CALIX, INC files with the SEC, follow the hedge funds that own it, screen 2,800+ AI-scored stocks, and get the daily brief — free.

View Pricing

Free tier includes 13F data, economic indicators, and market overview. Pro starts at $6.67/mo (billed annually).

Passwordless sign-in · Payments by Stripe · Auth by Clerk

Popular Research

AAPL

Apple

MSFT

Microsoft

NVDA

NVIDIA

GOOG

Alphabet

AMZN

Amazon

Is CALX a good stock to buy?

13F Pro's AI-powered analysis of CALIX, INC (CALX) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Communication Services sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for CALX are available on the CALX stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing.

Which hedge funds own CALX?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling CALX. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of CALIX, INC's investment landscape.