Comparison

APPLIED OPTOELECTRONICS, INC. (AAOI) vs CISCO SYSTEMS, INC. (CSCO)

The same filed metrics for both companies, side by side.

What each names as a risk in its own annual report, how each is priced against its own history, and the tracked managers whose latest 13F reports a position in both.

Financials

AAOI

APPLIED OPTOELECTRONICS, INC.

Communication Equipment

Revenue, FY25: $456M
Net income: −$38.23M
Operating cash flow: −$174M
Free cash flow: −$354M
Net margin: −8.39%
Operating margin: −11.98%
Gross margin: 30.04%

CSCO

CISCO SYSTEMS, INC.

Communication Equipment

Revenue, FY26: $63.33B
Net income: $13.27B
Operating cash flow: $14.18B
Free cash flow: $12.77B
Net margin: 20.95%
Operating margin: 24.27%
Gross margin: 64.52%

Head-to-head

Filed growth, quality and valuation, read against each company’s own history rather than against the other side.

Metric	AAOI	CSCO
Revenue growth, latest filed year	+82.75%	+11.77%
Piotroski F-score	4 of 9	7 of 9
P/E against its own history	-	57.95% above

What each says it is exposed to

From Item 1A of each company’s most recent 10-K.

AAOI

No 10-K read yet.

CSCO

Supply chain
Cybersecurity
Litigation
Tax
Climate
Currency moves

And 22 more.

Tracked managers holding both

No manager tracked here reports a position in both, as of each company’s latest filed 13F.

Updated Sep 15, 2026 · the newer of the two companies' filings