transcript cfo qa defensiveness
What it checks
Specifically measures the CFO's tone swings during the analyst Q&A portion. When the CFO oscillates between positive boilerplate and defensive clarifications, expect a forward miss.
Mechanism
When a CFO oscillates between positive boilerplate and negative-tone clarifications during analyst Q&A (high cfo_qa_dispersion in FinBERT scores), they are typically defending weak fundamentals — predicting negative 60-90 day drift independent of the miss/beat itself. The signal isolates *defensive non-answers*: sentence-level CFO tone variance during the Q&A section, z-scored against the firm's own call history.
Signal rule
SHORT when cfo_qa_dispersion own-z >= +1.0 (defensive). LONG when own-z <= -1.0 (consistent / confident).
Data dependencies
daily_pricesAdjusted-close OHLCV for every US-listed ticker; primary price feed.
transcript_finbert_scoresWorker data table — see services/worker schema.
Expected edge
- Paper window
- 2003-2018
Predicts negative 60-90 day drift independent of the print's miss/beat, with effect strongest on guidance-miss quarters.
Illustrative pattern only
NOT a backtestIllustrative pattern only — see /app for live backtests and the actual current equity curve.
Related families
transcript finbert qa dispersionText-NLPHuang-Wang-Yang (2023 CAR) "FinBERT: A Large Language Model for Extracting Information from Financial Text." FinBERT-tone outperforms Loughran-McDonald wordcount on every post-call drift measure tested (3-day CAR R² roughly doubles). Follow-up Chen et al. (2024 JFE) reports ~5% annualised L/S on the Q&A-dispersion sub-signal. Own-history z of per-call Q&A sentiment dispersion (stdev of per-sentence pos-neg score): short when z ≥ +1 (uncertainty), long when z ≤ −1 (confident answers).
transcript qa evasionText-NLPBochkay-Brown-Leone-Tucker (2024 JAR) "Managers' Use of Language in Earnings Conference Calls and Future Performance." Signal is the semantic distance between an analyst's question and management's answer. When the answer is far from the question (mgmt evading), the firm underperforms over the next 60 days. Reported: LS quintile Sharpe 1.4, 7.8% annualised. v1 uses Jaccard token-overlap distance as a CPU-only proxy; v2 will swap to sentence-embedding cosine.
transcript exec tone divergenceText-NLPWhen the CEO and CFO speak with different sentiment tones on the same earnings call, post-earnings drift skews negative. We compute |ceo_tone − cfo_tone| per call from FinBERT scores on speaker-tagged transcript segments, then z-score against the firm's own history. A high absolute divergence implies the strategic narrative (CEO) and financial detail (CFO) are misaligned — a bearish setup. Negative z (unusually aligned tones) acts as a confidence proxy.
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