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Side-by-side financial comparison of Aether Holdings, Inc. (ATHR) and Sintx Technologies, Inc. (SINT). Click either name above to swap in a different company.

Aether Holdings, Inc. is the larger business by last-quarter revenue ($338.8K vs $290.0K, roughly 1.2× Sintx Technologies, Inc.). Aether Holdings, Inc. runs the higher net margin — -382.9% vs -763.8%, a 380.9% gap on every dollar of revenue. On growth, Aether Holdings, Inc. posted the faster year-over-year revenue change (-0.9% vs -46.5%). Aether Holdings, Inc. produced more free cash flow last quarter ($-2.2M vs $-2.4M).

Aether Industries Limited is an Indian chemical manufacturing company based in Surat, Gujarat. The company specializes in producing advanced intermediates and specialty chemicals for various industries, including pharmaceuticals, agrochemicals, material sciences, and oil and gas.

Sintx Technologies, Inc. is an advanced materials company specializing in R&D and manufacturing of high-performance silicon nitride and other technical ceramic products. It serves key segments including medical implants, aerospace & defense, industrial wear components, and electric vehicle applications, with core markets across North America, Europe and Asia-Pacific.

ATHR vs SINT — Head-to-Head

Bigger by revenue
ATHR
ATHR
1.2× larger
ATHR
$338.8K
$290.0K
SINT
Growing faster (revenue YoY)
ATHR
ATHR
+45.6% gap
ATHR
-0.9%
-46.5%
SINT
Higher net margin
ATHR
ATHR
380.9% more per $
ATHR
-382.9%
-763.8%
SINT
More free cash flow
ATHR
ATHR
$209.3K more FCF
ATHR
$-2.2M
$-2.4M
SINT

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
ATHR
ATHR
SINT
SINT
Revenue
$338.8K
$290.0K
Net Profit
$-1.3M
$-2.2M
Gross Margin
80.4%
64.8%
Operating Margin
-382.9%
-799.3%
Net Margin
-382.9%
-763.8%
Revenue YoY
-0.9%
-46.5%
Net Profit YoY
-232.5%
-30.7%
EPS (diluted)
$-0.11
$-0.50

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
ATHR
ATHR
SINT
SINT
Q4 25
$338.8K
$290.0K
Q3 25
$208.0K
Q2 25
$342.4K
$151.0K
Q1 25
$341.9K
$369.0K
Q4 24
$542.0K
Q3 24
$799.0K
Q2 24
$859.0K
Q1 24
$687.0K
Net Profit
ATHR
ATHR
SINT
SINT
Q4 25
$-1.3M
$-2.2M
Q3 25
$-3.5M
Q2 25
$-1.0M
$-2.3M
Q1 25
$-427.4K
$-2.3M
Q4 24
$-1.7M
Q3 24
$-6.2M
Q2 24
$-2.2M
Q1 24
$-886.0K
Gross Margin
ATHR
ATHR
SINT
SINT
Q4 25
80.4%
64.8%
Q3 25
44.7%
Q2 25
69.9%
37.7%
Q1 25
67.9%
33.3%
Q4 24
71.6%
Q3 24
73.7%
Q2 24
73.9%
Q1 24
67.5%
Operating Margin
ATHR
ATHR
SINT
SINT
Q4 25
-382.9%
-799.3%
Q3 25
-1613.0%
Q2 25
-293.7%
-1764.9%
Q1 25
-112.6%
-645.8%
Q4 24
-319.6%
Q3 24
-802.0%
Q2 24
-315.5%
Q1 24
-465.4%
Net Margin
ATHR
ATHR
SINT
SINT
Q4 25
-382.9%
-763.8%
Q3 25
-1701.4%
Q2 25
-293.7%
-1535.1%
Q1 25
-125.0%
-621.1%
Q4 24
-312.7%
Q3 24
-780.9%
Q2 24
-256.6%
Q1 24
-129.0%
EPS (diluted)
ATHR
ATHR
SINT
SINT
Q4 25
$-0.11
$-0.50
Q3 25
$-3.46
Q2 25
$-0.08
$-0.91
Q1 25
$-0.04
$-1.29
Q4 24
$17.04
Q3 24
$-6.96
Q2 24
$-3.61
Q1 24
$-21.66

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
ATHR
ATHR
SINT
SINT
Cash + ST InvestmentsLiquidity on hand
$263.3K
$4.1M
Total DebtLower is stronger
Stockholders' EquityBook value
$3.4M
$2.9M
Total Assets
$4.0M
$9.5M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ATHR
ATHR
SINT
SINT
Q4 25
$263.3K
$4.1M
Q3 25
$6.3M
Q2 25
$187.4K
$4.3M
Q1 25
$179.2K
$6.5M
Q4 24
$3.6M
Q3 24
$4.8M
Q2 24
$4.6M
Q1 24
$5.8M
Stockholders' Equity
ATHR
ATHR
SINT
SINT
Q4 25
$3.4M
$2.9M
Q3 25
$4.1M
Q2 25
$5.9M
$4.0M
Q1 25
$-596.3K
$6.1M
Q4 24
$3.9M
Q3 24
$5.6M
Q2 24
$8.8M
Q1 24
$9.9M
Total Assets
ATHR
ATHR
SINT
SINT
Q4 25
$4.0M
$9.5M
Q3 25
$11.4M
Q2 25
$6.5M
$9.2M
Q1 25
$367.8K
$11.4M
Q4 24
$9.4M
Q3 24
$11.3M
Q2 24
$15.3M
Q1 24
$17.6M

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
ATHR
ATHR
SINT
SINT
Operating Cash FlowLast quarter
$-1.0M
$-2.3M
Free Cash FlowOCF − Capex
$-2.2M
$-2.4M
FCF MarginFCF / Revenue
-642.5%
-822.8%
Capex IntensityCapex / Revenue
344.9%
14.5%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ATHR
ATHR
SINT
SINT
Q4 25
$-1.0M
$-2.3M
Q3 25
$-2.5M
Q2 25
$-2.0M
$-2.4M
Q1 25
$-1.3M
Q4 24
$-1.1M
Q3 24
$-2.6M
Q2 24
$-2.2M
Q1 24
$-2.7M
Free Cash Flow
ATHR
ATHR
SINT
SINT
Q4 25
$-2.2M
$-2.4M
Q3 25
$-2.6M
Q2 25
Q1 25
$-1.4M
Q4 24
$-1.3M
Q3 24
$-2.6M
Q2 24
$-2.6M
Q1 24
$-2.9M
FCF Margin
ATHR
ATHR
SINT
SINT
Q4 25
-642.5%
-822.8%
Q3 25
-1250.5%
Q2 25
Q1 25
-368.6%
Q4 24
-234.3%
Q3 24
-323.0%
Q2 24
-299.7%
Q1 24
-423.1%
Capex Intensity
ATHR
ATHR
SINT
SINT
Q4 25
344.9%
14.5%
Q3 25
40.4%
Q2 25
0.0%
Q1 25
16.0%
Q4 24
26.9%
Q3 24
1.4%
Q2 24
41.8%
Q1 24
25.3%

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

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