Which has the lower trailing P/E, ASYS or RBBN?

RBBN has the lower trailing P/E: ASYS trades at 68.79 and RBBN at 21.59. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, ASYS or RBBN?

Over the past five years, ASYS grew revenue faster — ASYS at a 1.46% CAGR versus RBBN at 0.02%.

Is ASYS or RBBN more profitable?

ASYS runs the higher net margin — ASYS at 4.23% versus RBBN at 1.96%.

How have ASYS and RBBN total returns compared?

Over the past 10 years, ASYS delivered 13.98% and RBBN delivered -14.00% annualized total return. Past performance doesn't predict future results.

Amtech Systems, Inc. (ASYS) vs Ribbon Communications Inc. (RBBN)

A side-by-side comparison of Amtech Systems, Inc. and Ribbon Communications Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 6, 2026. Differences are shown without an overall score or investment verdict.

ASYS

Amtech Systems, Inc.

$312M

$17.86TechnologyDelayed quote: Oct 6, 2026, 12:24 PM EDT

RBBN

Ribbon Communications Inc.

$314M

$1.76TechnologyDelayed quote: Oct 6, 2026, 12:25 PM EDT

Total return — ASYS vs RBBN

growth of $100 · dividends reinvested · last 10y

ASYS +273.0% (+14.1%/yr)RBBN -77.9% (-14.0%/yr)ASYS compounded faster over this window

Log scale — wide-divergence pair

ASYS RBBN

ASYS vs RBBN: by the numbers

•RBBN is the larger company ($314M vs $312M market cap).
•RBBN trades at the lower trailing earnings multiple (21.59 vs 68.79 P/E), one valuation lens rather than an overall verdict.
•ASYS converts more revenue to profit (4.23% vs 1.96% net margin).
•ASYS grew revenue faster over the past five years (1.46% vs 0.02% CAGR).

Metrics side by side

Valuation

Metric	ASYS	RBBN
P/E ratio	68.79	21.59
Forward P/E	20.41	35.14
P/S ratio	3.82	0.39
P/B ratio	2.70	0.80
EV / EBITDA	24.00	14.31
FCF yield	2.80%	2.34%

Profitability

Metric	ASYS	RBBN
Gross margin	34.00%	47.03%
Operating margin	-35.90%	-1.62%
Net margin	4.23%	1.96%
ROE	2.99%	3.97%
ROIC	2.87%	-1.53%

Growth (annualized)

Metric	ASYS	RBBN
Revenue CAGR (5Y)	1.46%	0.02%
EPS CAGR (5Y)	N/A	-19.23%
FCF CAGR (5Y)	N/A	-31.98%
Total return CAGR (5Y)	9.67%	-22.17%

Frequently asked

Which has the lower trailing P/E, ASYS or RBBN?: RBBN has the lower trailing P/E: ASYS trades at 68.79 and RBBN at 21.59. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, ASYS or RBBN?: Over the past five years, ASYS grew revenue faster — ASYS at a 1.46% CAGR versus RBBN at 0.02%.
Is ASYS or RBBN more profitable?: ASYS runs the higher net margin — ASYS at 4.23% versus RBBN at 1.96%.
How have ASYS and RBBN total returns compared?: Over the past 10 years, ASYS delivered 13.98% and RBBN delivered -14.00% annualized total return. Past performance doesn't predict future results.

Go deeper

Full ASYS analysis Full RBBN analysis Interactive comparison tool

Dig into the metrics

Amtech Systems P/E ratio Ribbon Communications P/E ratio Amtech Systems ROE Ribbon Communications ROE Amtech Systems operating margin Ribbon Communications operating margin Amtech Systems revenue growth Ribbon Communications revenue growth Amtech Systems free cash flow Ribbon Communications free cash flow

Amtech Systems & Ribbon Communications appear in these rankings

Highest 10-Year Total Return Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified October 6, 2026.