ZSTK Stock Snapshot Price, market cap, P/E, EPS, ROE, debt/equity, 52-week range

03
Price $4.86
Market Cap (MRQ) $12M
P/E (TTM) -0.1
EPS (TTM) $-49.49
Revenue (TTM) $30M
ROE (TTM) -1993.6%
Debt/Equity (MRQ) 0.2
52W Range $1–$20

ZSTK Stock Price Chart Daily OHLCV with technical indicators — pan, zoom, and customize your view

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Stock splits 2
Ex-date Split Type
Aug. 4, 2025 1-for-39 Reverse
June 9, 2023 1-for-20 Reverse

10-Year Performance Revenue, net income, margins and EPS trends

06
Revenue$36M
2021-12-31 → 2025-12-31
EPS$-43.49
2022-12-31 → 2025-12-31
Free Cash Flow$-9M
2023-12-31 → 2025-12-31
Net margin-592.3%
2023-12-31 → 2025-12-31
Valuation & Ratios 07–12

Valuation P/E, P/S, P/B, EV/EBITDA ratios — is the stock expensive or cheap?

Metric 5Y trend ZSTK 5Y avg Peer Median Verdict
P/E (TTM) -0.1 · · ·
P/S (TTM) 0.4 · · ·
P/B (MRQ) 0.9 · · ·
EV / EBITDA -0.3 · · ·
Price / FCF (TTM) -2.1 · · ·
Price / Cash Flow (TTM) -2.1 · · ·
EV / Revenue 1.5 · · ·
EV / FCF -6.0 · · ·
Price / Tangible Book 0.1 · · ·

Peer median is calculated on a standardized basis per metric and may not always match the TTM/MRQ basis shown for this stock.

value · ≈ 5Y avg · industry median · verdict relative to median

Earnings History EPS actual vs estimate, surprise %, beat rate, next earnings date

14
Avg Surprise -2087.8%
Next Report Nov 03, 2026
PeriodReportEPS ActualEPS EstSurprise
June 30, 2026 Aug 17, 2026 $-2.47 $-0.11 -2101.4%
Dec. 31, 2025 $-27.08 $-0.40 -6707.4%
Sept. 30, 2025 $-4.93 $-2.17 -126.9%
June 30, 2025 $-3.90 $-2.39 -63.4%
March 31, 2025 $-15.99 $1.19 -1439.9%

Full Fundamentals All metrics by year — income statement, balance sheet, cash flow

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Income Statement 16
Metric Trend 20252024202320222021
Revenue $36M$36M$76M$33M$9M
Cost of Revenue $34M$34M$58M$20M$7M
Gross Profit $2M$2M$18M$13M$2M
R&D Expense ·$418.0K$62.0K$388.0K$132.0K
SG&A Expense $1M$2M$2M$3M$922.0K
Operating Expenses $156M$11M$68M$60M$21M
Operating Income $-155M$-9M$-50M$-47M$-19M
Interest Income ·$213.0K$94.0K$4.0K$78.0K
Pretax Income $-115M$-9M$-48M$-48M$-21M
Income Tax $59.0K$22.0K$-2M$-1M$-98.0K
Net Income $-120M$-16M$-57M$-52M$-21M
EPS (Basic) $-43.49$-50.02$-7.75$-13.68·
EPS (Diluted) $-43.49$-50.02$-7.75$-13.68·
Shares (Basic) 2,7533187,3563,832·
Shares (Diluted) 2,7533187,3563,832·
EBITDA $-154M$-15M$-48M··
Balance Sheet 28
Metric Trend 20252024202320222021
Cash & Equivalents $6M$5M$4M$9M$38M
Receivables $799.0K$2M$4M$5M$5M
Inventory $2M$2M$9M$9M$3M
Prepaid Expense $323.0K$13.0K$1M$805.0K$2M
Current Assets $9M$20M$21M$31M$48M
PP&E (Net) $128.0K$81.0K$847.0K$1M$4M
PP&E (Gross) $255.0K$172.0K$1M$1M$4M
Accum. Depreciation $127.0K$91.0K$262.0K$208.0K$223.0K
Goodwill ·$2M$0$23M$20M
Intangibles ·$3M$946.0K$18M$10M
Other Non-current Assets $55.0K$35.0K$80.0K$263.0K·
Total Assets $130M$26M$24M$81M$85M
Accounts Payable $2M$4M$5M$8M$2M
Accrued Liabilities $1M····
Current Liabilities $9M$19M$16M$17M$6M
Capital Leases $279.0K$122.0K$942.0K$2M$908.0K
Deferred Tax $9.0K$0$0$2M$2M
Other Non-current Liabilities ··$942.0K·$2M
Total Liabilities $60M$22M$17M$25M$9M
Long-term Debt $53M$2M···
Total Debt $53M$2M$2M··
Common Stock $0$0$0$0·
Paid-in Capital $348M$163M$149M$150M$117M
Retained Earnings $-278M$-158M$-143M$-91M$-39M
AOCI $180.0K$-221.0K$-140.0K$-3M$-1M
Stockholders' Equity $71M$5M$6M$56M$77M
Liabilities + Equity $130M$26M$24M$81M$85M
Shares Outstanding 1,046,000478,0008,935,0006,776,00065,517
Cash Flow 14
Metric Trend 20252024202320222021
D&A $582.0K$768.0K$2M$3M$501.0K
Stock-based Comp $1M$3M$2M$3M$1M
Deferred Tax $56.0K$22.0K$-2M$-1M$-128.0K
Amort. of Intangibles ·$642.0K$2M$2M·
Other Non-cash $109M$8M$46M··
Operating Cash Flow $-9M$-5M$-8M$-16M$-21M
CapEx $127.0K$134.0K$163.0K$1M$4M
Investing Cash Flow $-3M$203.0K$-234.0K$-16M$-15M
Stock Issued $16M$8M$3M$5M$43M
Stock Repurchased ··$0$255.0K$0
Net Stock Activity $16M$8M$3M··
Financing Cash Flow $11M$6M$3M$4M$58M
Net Change in Cash $373.0K$2M$-5M$-28M$22M
Free Cash Flow $-9M$-5M$-9M··
Profitability 8
Metric Trend 20252024202320222021
Gross Margin 4.6%21.0%23.3%··
Operating Margin -433.5%-26.3%-66.2%··
Net Margin -335.6%-26.7%-75.0%··
Pretax Margin -323.3%-27.0%-63.5%··
EBITDA Margin -431.9%-25.0%-62.9%··
ROA -153.1%-63.8%-109.0%··
ROE -319.0%-291.5%-190.1%··
ROIC -124.7%-234.8%-583.8%··
Liquidity & Solvency 4
Metric Trend 20252024202320222021
Current Ratio 1.01.01.3··
Quick Ratio 0.70.50.5··
Debt / Equity 0.80.50.3··
LT Debt / Equity 0.7····
Efficiency 3
Metric Trend 20252024202320222021
Asset Turnover 0.52.41.5··
Inventory Turnover 16.56.66.8··
Receivables Turnover 30.217.016.5··
Per Share 5
Metric Trend 20252024202320222021
Book Value / Share $67.45$0.24$0.72··
Revenue / Share $12958.95$4850.82$10341.35··
Cash Flow / Share $-3151.47$-410.21$-1141.38··
Cash / Share $5.35$0.33$0.49··
EPS (TTM) $-43.49$-50.02$-7.75$-13.68·
Growth Rates 2
Metric Trend 20252024202320222021
Revenue YoY -0.53%-52.8%127.8%271.9%·
Revenue CAGR 3Y 2.2%58.7%···
Valuation (TTM) 14
Metric Trend 20252024202320222021
Revenue TTM $36M$36M$76M$33M·
Net Income TTM $-120M$-16M$-57M$-52M·
Market Cap $7M$744M···
Enterprise Value $54M$740M···
P/E -0.1-0.8···
P/S 0.220.7···
P/B 0.1164.9···
P / Tangible Book 0.1····
P / Cash Flow -0.8-147.8···
P / FCF -0.7-143.9···
EV / EBITDA -0.4-49.7···
EV / FCF -6.2-143.2···
EV / Revenue 1.520.6···
Earnings Yield -694.7%-124.5%···

Most recent period on the left · null values shown as ·

Financial Statements Income statement, balance sheet, cash flow — annual, last 5 years

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Metric 2025-12-312024-12-312023-12-312022-12-312021-12-31
Revenue $36M $36M $76M $33M $9M
Gross Margin % 4.6% 21.0% 23.3% · ·
Operating Margin % -433.5% -26.3% -66.2% · ·
Net Income $-120M $-16M $-57M $-52M $-21M
Diluted EPS $-43.49 $-50.02 $-7.75 $-13.68 ·

Institutional owners (13F) 11 filers · $184K total · As of June 30, 2026

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Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.

Holders 11
Value held $184K
New positions 3
Exited positions 2
Institutional activity — Q2 2026 vs prior quarter
New positions Exited positions Increased Decreased Net shares change
3 2 0 3 ·

Compared to Q1 2026. SEC Form 13F filings are due within 45 days of quarter-end plus a short buffer for late filers — quarters still inside that window are skipped in favor of the most recent fully-reported pair. Change vs prior quarter not shown: filer coverage differs too much between these two quarters for a reliable comparison.

Institution Value Shares % of tracked 13F Type
VANGUARD CAPITAL MANAGEMENT LLC $76,320 25,440 41.52% Shares
GEODE CAPITAL MANAGEMENT, LLC $62,984 20,994 34.26% Shares
VANGUARD FIDUCIARY TRUST CO $37,944 12,648 20.64% Shares
Tower Research Capital LLC (TRC) $5,190 1,730 2.82% Shares
UBS Group AG $1,320 440 0.72% Shares
OSAIC HOLDINGS, INC. $36 12 0.02% Shares
MORGAN STANLEY $21 7 0.01% Shares
BARCLAYS PLC $9 3 0.00% Shares
CITIGROUP INC $3 1 0.00% Shares
Key Financial Inc $3 1 0.00% Shares
ROYAL BANK OF CANADA $0 12 0.00% Shares

Activists & 5%+ owners 7 positions

18

Investors who filed SEC Schedule 13D — beneficial ownership above 5% with an intent to influence the issuer (activist stakes, board campaigns, M&A). Each row shows the most recent known state of that filer's position.

Filer Filed Stake Status Purpose Filing
Heinrich Michael, Zero Gravity Labs Inc. ×4 filings July 21, 2026 30.20% Amendment · SEC
Vaiman Dany ×3 filings July 21, 2026 2.90% Amendment · SEC
Reis-Faria Daniel ×3 filings July 21, 2026 37.50% Amendment · SEC
Starke Clifford July 21, 2025 17.10% Amendment · SEC
Dany Vaiman (the “Reporting Person”) ×2 filings Dec. 17, 2024 · Initial filing · SEC
Clifford Starke (the “Reporting Person”) ×4 filings Dec. 17, 2024 · Initial filing · SEC
CLIFFORD STARKE, DANY VAIMAN, EDWARD WOO ×2 filings April 21, 2023 · Initial filing Passive investment SEC

Purpose is an automated classification of the filer's own stated purpose (SEC Item 4) — not investment advice. "—" means no clear purpose was stated or the text could not be classified.

Company insiders 20 insiders · 8 officers · 17 directors

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Insider Role Last activity Shares owned Buys 12m Sells 12m Net 12m
Reis-Faria Daniel CEO July 20, 2026 X 5,954,743 1 0 $149,999,976
Clifford Starke CEO June 30, 2025 A 906,846 0 0 $0
Vaiman Dany CFO July 20, 2026 A 170,850 0 0 $0
Rudy Rong President Aug. 19, 2026 S 0 0 1 $-7,570
Heinrich Michael Executive Chairman July 20, 2026 A 4,608,575 1 0 $3,456,431
Sammy Dorf Executive Chairman Dec. 15, 2024 A 250,000 0 0 $0
Kevin Taylor Chairman Nov. 15, 2023 A 124,186 0 0 $0
Matthew S. Cohen, General Counsel May 18, 2023 F 329,610 0 0 $0
Manfred Leventhal Director May 5, 2026 A · 0 0 $0
Edward Woo Director May 5, 2026 A 134,698 0 0 $0
Laurence Zeifman Director May 5, 2026 A · 0 0 $0
Michael John Brown Director Oct. 22, 2025 A · 0 0 $0
Harold Wolkin Director June 30, 2025 A 25,000 0 0 $0
Thomas Solomon Director Nov. 15, 2023 A 35,766 0 0 $0
Hussein Rakine Director June 25, 2023 D 2,500 0 0 $0
John Timothy Leslie Director March 17, 2023 A 138,574 0 0 $0
Marc Mastronardi Director March 17, 2023 A 160,000 0 0 $0
Beverley Richardson Director March 17, 2023 A 150,000 0 0 $0
Juan Carlos Gomez Roa Director March 17, 2023 A 2,042,509 0 0 $0
Brandon Konigsberg Director March 17, 2023 A 100,000 0 0 $0

Insiders from SEC Form 3/4/5 filings; net = open-market P/S only

ETF ownership Held by 1 ETF

20

Weight reflects direct equity holdings (N-PORT) only; leveraged or derivative-based funds may hold additional swap exposure not shown.

Fund Weight Units As of Source
VXF · VANGUARD INDEX FUNDS 0.00% 25,440 SH Aug. 19, 2026 Daily

ZSTK Analyst Consensus Bullish and bearish analyst opinions, 12-month price target, upside

21
rating · 7 analysts BUY
Median target $11.00 +126.3%
2 28.6% Strong Buy
4 57.1% Buy
1 14.3% Hold
0 0.0% Sell
0 0.0% Strong Sell

12-Month Price Target

1 analysts · 2026-10-03

Mean target $11.00 +126.3%

Low$11.00 Mean$11.00 High$11.00

Peer comparison (GICS sub-industry) Key metrics vs sector peers

22

FY basis, prices as of each company's last fiscal year-end close.

Ticker Market Cap P/E Rev YoY Net Margin ROE Gross Margin
ZSTK $7M -0.1 -0.53% -335.6% -319.0% 4.6%
ACH · · · · · ·
MEDS · · · · · ·

My Metrics Your personal watchlist — selected rows from Full Fundamentals

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Source: SEC 10-Q filed Jul 31, 2026