CIEN vs DGII

Ciena Corporation vs Digi International Inc. — Valuation Comparison 2026

By CirclFi Research Team · Updated 2026-06-03 · Data from SEC EDGAR, FRED & GDELT

Quick Summary — DGII scores higher on quality with 9.9/10 vs CIEN's 9.0/10. CIEN trades at $627.00 while DGII trades at $69.82. Both analyzed daily using SEC EDGAR data across 13 institutional models.

CIEN

Communication Equipment
Ciena Corporation
Quality
9.0
out of 10
Value Trap
14
SAFE
Price
$627.00
Last close
Models
13/13
Active
VS

DGII

Communication Equipment
Digi International Inc.
Quality
9.9
out of 10
Value Trap
17
SAFE
Price
$69.82
Last close
Models
12/13
Active
CIEN
Quality Score 9.0/10 — top tier
Limited to 2/13 visible models
DGII
Quality Score 9.9/10 — top tier
Limited to 2/13 visible models

CIEN vs DGII — Fair Value Comparison

CIEN
$0$247$493$740 Price$627.00 Bayesian …$42.72 (-93.2%) Earnings …$31.28 (-95.0%)
DGII
$0$27$55$82 Price$69.82 Bayesian …$34.64 (-50.4%) Earnings …$10.28 (-85.3%)
Market Price Model 1 Model 2

Model-by-Model Comparison

ModelType CIEN Fair ValueCIEN Upside DGII Fair ValueDGII Upside
Bayesian DCF Intrinsic $42.72 -93.2% $34.64 -50.4%
Earnings Power Value Intrinsic $31.28 -95.0% $10.28 -85.3%
EROIC Spread Intrinsic $•••.•• ••.•% $•••.•• ••.•%
First Chicago Scenario $•••.•• ••.•% $•••.•• ••.•%
Markov DDM Intrinsic $•••.•• ••.•% $•••.•• ••.•%
ML-RIV Intrinsic $•••.•• ••.•% $•••.•• ••.•%
Dynamic NAV Asset-Based $•••.•• ••.•% $•••.•• ••.•%
PWERM Option-Based $•••.•• ••.•% $•••.•• ••.•%
Regime Cross-Sectional Relative $•••.•• ••.•% $•••.•• ••.•%
Sentiment SOTP Hybrid $•••.•• ••.•% $•••.•• ••.•%
CUCE Ensemble Ensemble $•••.•• ••.•% $•••.•• ••.•%
FTNN Topology Relative $•••.•• ••.•% $•••.•• ••.•%
RCMH-DCF Intrinsic $•••.•• ••.•% $•••.•• ••.•%

CIEN vs DGII — Which Stock Is More Undervalued in 2026?

DGII scores higher with a 9.9/10 quality rating vs CIEN's 9.0/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

How Do CIEN and DGII Valuations Compare?

At $627.00, CIEN trades +93.2% above its Bayesian DCF fair value of $42.72, while DGII at $69.82 trades +50.4% above its estimate of $34.64. CIEN shows a wider gap between price and intrinsic value.

Quality of Company: CIEN vs DGII

CIEN earns a Quality of Company score of 9.0/10 compared to DGII's 9.9/10. The scores are closely matched, indicating similar fundamental quality profiles. The QOC score synthesizes 32 signals spanning profitability margins, revenue growth, free cash flow, capital allocation, and leverage.

Value Trap Risk: CIEN vs DGII

CIEN carries a SAFE value trap risk (14/100) while DGII shows SAFE risk (17/100). Both companies show manageable value trap risk, suggesting their current valuations are not artificially depressed by fundamental deterioration.

Both in Communication Equipment

Both CIEN and DGII operate in Communication Equipment, which has 42 stocks tracked by CirclFi. Same-industry comparisons provide the most direct insight into relative valuation since both companies face similar regulatory environments, market dynamics, and competitive pressures. Both companies are analyzed with models spanning intrinsic (Bayesian DCF, EPV), scenario-based (First Chicago), regime-switching (Markov DDM, RCMH-DCF), machine learning (ML-RIV, FTNN), and ensemble methods (CUCE).

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