What is the 13F Pro Quality Score for ZSTK?

13F Pro ranks ZeroStack Corp. (ZSTK) 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 ZSTK's current score at https://13fpro.ai/research/ZSTK (free sign-up required for the full ranking).

Where does 13F Pro source ZSTK data?

All ZeroStack Corp. fundamentals and ownership data come directly from SEC EDGAR. ZeroStack Corp. files with the SEC under CIK 1790169. 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 ZSTK in?

ZeroStack Corp. (ZSTK) is classified in the Consumer Staples sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/consumer-staples.

How often is ZSTK research updated on 13F Pro?

ZSTK'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.

ZeroStack Corp.(ZSTK)Stock Analysis

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13F Pro Quality Score

Not in ranked universe

Limited institutional coverage

Quality rankings require at least 50 unique 13-F institutional holders to ensure peer comparisons are meaningful. Only 10 institutional filers currently hold this stock.

Financial data, filings, and institutional holdings below are still tracked in full — only the proprietary quality composite is unavailable for this name.

ZSTK Stock Analysis & AI Quality Score

AI stock analysis and institutional research for ZeroStack Corp. (ZSTK), a Consumer Staples sector company. ZSTK is not currently included in 13F Pro's AI-ranked quality universe — quality rankings require at least 50 unique 13-f institutional holders to ensure peer comparisons are meaningful. only 10 institutional filers currently hold this stock. Based on the latest XBRL financial filings (Q1 2026), ZeroStack Corp. reports quarterly revenue of $7.3M, net income of $-36.7M, free cash flow of $-3.8M. Top institutional holders of ZSTK by reported 13-F value include VANGUARD CAPITAL MANAGEMENT, GEODE CAPITAL MANAGEMENT,, VANGUARD FIDUCIARY CO, based on the most recent SEC filings. ZSTK trades on the Nasdaq exchange and files with the SEC under CIK 1790169. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate ZSTK 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 ZeroStack Corp. directly from SEC EDGAR.

Revenue

Q1 2026

$7.3M

Net Income

Q1 2026

$-36.7M

Free Cash Flow

Q1 2026

$-3.8M

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro+

Revenue

-53.1% YoY

$35.7MFY 2025

FY21 $9.0MFY22 $33.4MFY23 $76.1MFY25 $35.7M

Net Income

—FY 2025

FY21 $-21.4MFY22 $-52.4MFY23 $-57.0MFY25 —

Operating Income

-207.1% YoY

$-154.7MFY 2025

FY21 $-19.0MFY22 $-47.2MFY23 $-50.4MFY25 $-154.7M

EPS (Diluted)

-461.2% YoY

$-43.49FY 2025

FY21 —FY22 $-7.64FY23 $-7.75FY25 $-43.49

Total Assets

+451.2% YoY

$130.2MFY 2025

FY21 $85.5MFY22 $81.0MFY23 $23.6MFY25 $130.2M

Total Debt

+2811.0% YoY

$56.2MFY 2025

FY21 $18.0KFY22 $1.1MFY23 $1.9MFY25 $56.2M

Op. Cash Flow

-3.3% YoY

$-8.7MFY 2025

FY21 $-20.9MFY22 $-15.9MFY23 $-8.4MFY25 $-8.7M

Metric	FY 2025	FY 2023	FY 2022	FY 2021
Revenue	$35.7M -53.1%	$76.1M +127.8%	$33.4M +271.9%	$9.0M
Net Income	—	$-57.0M -8.8%	$-52.4M -145.4%	$-21.4M
Operating Income	$-154.7M -207.1%	$-50.4M -6.6%	$-47.2M -148.5%	$-19.0M
EPS (Diluted)	$-43.49 -461.2%	$-7.75 -1.4%	$-7.64	—
Total Assets	$130.2M +451.2%	$23.6M -70.8%	$81.0M -5.3%	$85.5M
Total Debt	$56.2M +2811.0%	$1.9M +77.8%	$1.1M +5933.3%	$18.0K
Operating Cash Flow	$-8.7M -3.3%	$-8.4M +47.3%	$-15.9M +23.9%	$-20.9M

AI Insight: ZSTK Financial Trends

ZeroStack is in severe financial distress with collapsing revenue, massive operating losses, and negative cash flow across all recent quarters.

• Revenue collapsed 77% from $31M in Q4 2024 to $7M in Q1 2026, signaling fundamental demand or operational failure.

• Operating income deteriorated from -$10M in Q4 2024 to -$149M in Q4 2025, then -$63M in Q1 2026.

• Operating cash flow has been negative every quarter, ranging from -$4M to -$0M, indicating zero cash generation.

⚠ Debt spiked from $2M to $56M in Q4 2025 while equity nearly doubled, suggesting asset write-downs or dilutive financing.

⚠ Q4 2025 operating loss of -$149M vastly exceeds revenue, indicating one-time charges or structural business collapse.

AI Insight: ZSTK Ratio Trends

ZeroStack swung from deeply negative returns in 2024 to near breakeven ROIC by Q3 2025, but leverage spiked mid-year before collapsing.

• ROIC improved from -54.0% in Q1 2025 to -11.1% in Q3 2025, showing operational stabilization despite persistent losses.

• Operating margin remained negative through Q2 2025 (-17.3%), though Q1 2025 showed -8.3%, suggesting volatile cost control.

• Debt-to-equity spiked to 0.80 in Q4 2025 from 0.04 in Q3 2025, then collapsed to 0.17 in TTM, indicating major capital restructuring.

⚠ Q2 2024 showed ROA of -35.0% and ROE of -143.9%; recovery trajectory remains uneven with gaps in recent quarterly data.

⚠ TTM D/E at 0.17 vs. Q4 2025's 0.80 signals either significant equity raise or debt paydown; confirm capital structure changes.

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Available Research

13F Pro tracks comprehensive data for ZeroStack Corp. 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 ZSTK

VANGUARD CAPITAL MANAGEMENT LLC
$157.2K25,440 sh
GEODE CAPITAL MANAGEMENT, LLC
$156.5K25,321 sh
VANGUARD FIDUCIARY TRUST CO
$78.2K12,648 sh
UBS Group AG
$4.1K666 sh
MORGAN STANLEY
$1.1K173 sh
Bernard Wealth Management Corp.
$75.0012 sh
OSAIC HOLDINGS, INC.
$73.0012 sh
Sound Income Strategies, LLC
$72.0012 sh
Key FInancial Inc
$6.001 sh
ROYAL BANK OF CANADA
$0.0012 sh

Fund	Value	Shares
VANGUARD CAPITAL MANAGEMENT LLC	$157.2K	25,440
GEODE CAPITAL MANAGEMENT, LLC	$156.5K	25,321
VANGUARD FIDUCIARY TRUST CO	$78.2K	12,648
UBS Group AG	$4.1K	666
MORGAN STANLEY	$1.1K	173
Bernard Wealth Management Corp.	$75.00	12
OSAIC HOLDINGS, INC.	$73.00	12
Sound Income Strategies, LLC	$72.00	12
Key FInancial Inc	$6.00	1
ROYAL BANK OF CANADA	$0.00	12

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Is ZSTK a good stock to buy?

13F Pro's AI-powered analysis of ZeroStack Corp. (ZSTK) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Consumer Staples sector (listed on Nasdaq). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for ZSTK are available on the ZSTK 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 ZSTK?

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 ZSTK. 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 ZeroStack Corp.'s investment landscape.