How to read this section: We test whether three price-based signals —
12-month momentum (trailing stock return), realized volatility (annualized standard deviation of daily returns), and
relative strength (stock return minus S&P 500 return) — predict next-quarter fundamental outcomes:
revenue growth, operating margin change, and ROE change (all year-over-year to remove seasonality).
Each cell shows the Pearson correlation (r) between signal at quarter Q and outcome at quarter Q+1.
Values closer to +1 or −1 indicate stronger predictive relationships. “n” is the number of quarterly observations.
The examination of price‑based signals for Digi International Inc. over the 46‑quarter span from 2015Q1 to 2026Q2 reveals an absence of statistically robust predictors of fundamental performance. The strongest observed relationship is a modest positive correlation between the Relative Strength indicator and revenue growth (r = 0.320, p = 0.041, n = 41), which reaches conventional significance at the 5% level but falls below the threshold for a notable signal (|r| ≥ 0.4). All other examined linkages—12‑month momentum with revenue growth (r = 0.258, p = 0.104), margin change, and ROE change; realized volatility with any outcome; and relative strength with margin or ROE—are weak in magnitude and lack statistical significance. Consequently, price signals do not consistently forecast the company’s operating metrics within the sample period.
Relative Strength vs. Revenue Growth: r = 0.320, p = 0.041 (n = 41) – the only statistically significant correlation but below notable strength.
12‑month Momentum vs. Revenue Growth: r = 0.258, p = 0.104 – weak and not significant.
Realized Volatility shows no meaningful relationship with any fundamental outcome (|r| ≤ 0.103, all p > 0.5).
No price signal reaches the |r| ≥ 0.4 threshold for a notable predictive relationship across revenue, margin, or ROE.
Limitations: The sample size of 41 observations per correlation limits statistical power and inflates uncertainty around estimated r‑values. Correlations do not imply causation; observed links may be driven by common external factors (e.g., macroeconomic cycles) rather than a direct predictive mechanism. Results are regime‑dependent; the analysis spans multiple market environments, and relationships that appear weak in aggregate could be stronger in sub‑periods not captured here.
DGII
For Digi International Inc., none of the three price signals—12‑month momentum, realized volatility, or relative strength—demonstrate a strong or even notable predictive relationship with revenue growth, margin change, or ROE change. The only statistically significant link is between Relative Strength and revenue growth (r = 0.320, p = 0.041), suggesting that periods of outperformance relative to the market modestly coincide with higher subsequent top‑line expansion. However, the correlation magnitude remains below the |r| ≥ 0.4 benchmark for a notable signal, indicating limited practical forecasting power. All other correlations are weak (|r| ≤ 0.258) and fail to achieve significance, implying that price dynamics for this stock largely reflect market noise or factors unrelated to short‑term fundamental shifts.