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Artul.ai Research LibraryStudy No. 77Signal CombinationsUpdated 2026-08-28

Rehearsed and Vague: When Two Signals Appear Together

By Artul.ai Research Group · n = 378 earnings calls · First published 2026-08-28

When an executive leans on rehearsed talking points while staying vague on substance, the combination is easy to miss in real time but stands out when measured at scale. Across 165,182 earnings-call transcripts read by an AI, 378 calls — about 0.2% — matched this pattern of high scripted delivery paired with low informational content. Anyone who follows calls closely knows the type; this study sizes it and shows what else tends to travel with it.

The profile shows confidence (4.65 to 7.21) running well above candor (3.61 to 6.86), a gap that fits the rehearsed-and-vague label. Co-occurrence is striking: "The Question Left Hanging" appears on 100% of these calls versus 48% of the base, a 2.09 lift, and "Scale-Dependent Advantage Claims" shows a 1.72 lift. Meanwhile, "Calls That Resolve Doubts" and "Guidance Worth Underwriting" are entirely absent. The trend is the sharpest signal: the pattern was rare for a decade, then jumped to 0.6% of calls in 2024 and 4.41% in 2025.

These fields come from AI reading of transcripts and are noisy; the 2024–2025 spike may partly reflect how the model reads modern call language rather than a real behavioral shift. Return figures here are descriptive history from a 22,449-call sample, not a trading signal — our own forward tests failed to confirm directional prediction, and language models partially remember famous stocks' histories, contaminating any backtest. Treat this as a description of a pattern, not an edge.

Matching Calls
378
0.2% of corpus

Behavior profile

MeterThis groupAll calls
Candor3.61/96.86/9
Evasion0.30/92.70/9
Specificity1.42/97.56/9
Stress1.38/92.43/9
Promotion2.51/95.05/9
Confidence4.65/97.21/9

Guidance actions in this group

ActionThis groupAll calls
raised0.0%21.1%
maintained0.8%48.8%
lowered0.3%11.6%
withdrawn0.0%2.7%

What travels with it

SignalLiftIn groupOverall
The Question Left Hanging2.09×100.0%48.0%
Scale-Dependent Advantage Claims1.72×19.0%11.1%
Calls That Resolve Doubts0.00×0.0%79.5%
Guidance Worth Underwriting0.00×0.0%71.5%
Skeptic Reassured0.00×0.0%66.4%
Pricing Recovering0.02×0.5%21.5%
Deferred Revenue Growing0.03×0.3%8.9%

Share of calls by year

YearShare
20150.00%
20160.01%
20170.01%
20180.01%
20190.00%
20200.00%
20210.00%
20220.01%
20230.01%
20240.60%
20254.41%

Recent examples

TickerCallDateGrade
CRDOFQ1 20252025-05-29F
REXQ1 20252025-05-28F
TPTAQ1 20252025-05-22F
WBQ1 20252025-05-21F
WRDQ1 20252025-05-21F
MDWDQ1 20252025-05-21D
BIOXQ3 20252025-05-21D
XPEVQ1 20252025-05-21F
Cite this study Artul.ai Research Group (2026). “Rehearsed and Vague: When Two Signals Appear Together.” Artul.ai Earnings-Call Research Library, Study No. 77. https://artul.ai/research/rehearsed-and-vague

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Not investment advice. Artul.ai publishes AI-generated earnings-call quality grades and expected-volatility estimates — never buy or sell recommendations. We tested over 1,600 predictive hypotheses against 165,000 transcripts; the honest result, including what failed, is documented in our methodology.