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Value Creation and Firm Life Cycle
Mature-stage firms account for 71% of the $58.3 trillion in aggregate excess wealth created above Treasury bill returns, while Introduction-stage firms collectively destroy value. The Mature phase is the only stage in which the median firm beats the risk-free rate; in all other stages, the typical firm fails to outperform Treasury bills over its lifetime. […] The handful of exceptional firms driving the equity premium are predominantly unconstrained firms in the middle of their life cycle.
Fazit: Interessante Ergänzung zur Erkenntnis, dass Aktienrenditen langfristig sehr schief verteilt sind.
Financial Prediction Markets: A New Measure of Earnings Expectations
Prediction markets are efficient aggregators of information: they significantly outperform sell-side analysts in predictive accuracy and possess significant incremental explanatory power for earnings announcement returns. […] Unlike analysts, who are not required to act on their stated views, our measure is derived from prices formed through actual trading, yielding earnings expectations that are backed by financial stakes.
Fazit: Prognosemärkte dürften bald erheblich an Bedeutung gewinnen.
When AI Reads the 10-Ks: The Effects of ChatGPT on Trading and Price Dynamics
AI-assisted interpretation can significantly improve retail investors‘ decision-making without access to private information. […] Democratization effects are stronger in disclosure-rich, stable industries, while narrative-driven sectors tend to be more affected by information asymmetry. Therefore, AI both equalizes and creates disparities in informational advantages, shaping a market where fundamentals and narratives coexist.
Fazit: KI könnte die Märkte transparenter und effizienter machen.
Keeping it Simple: How Can Post-Earnings Return Drift Exist and Not Exist Simultaneously?
Dickerson, Julliard, and Mueller (2025) use 18 quadrillion regressions to conclude that post-earnings announcement drift is a major factor in the stock market. […] Martineau (2022) argues that earnings drift does not exist in equities. This paper tries to resolve this conflict by replicating the procedure (…) in Dickerson, Julliard, and Mueller (2025), and indeed finds that earnings drift does not exist in all but microcaps.
Fazit: Die Anomalie lässt sich nur noch bei Microcaps nachweisen.
Credit Where It’s Not Due: Misbenchmarking by Active Bond Funds
By strategically selecting lower-risk, lower-return benchmarks, these funds generate inflated benchmark-adjusted returns that attract significant investor flows despite delivering no genuine managerial skill. […] Unlike equity markets, where benchmark misalignment has declined from 45% in 2008 to 27% by 2020, the bond fund industry shows no evidence of improvement, with three-quarters of funds remaining misbenchmarked as of 2024.
Fazit: Die relative Performance vieler Anleihefonds ist irreführend.
There is a discrepancy between theoretically optimal investment glidepaths derived from academic research and those implemented in practice, with actual glidepaths often presenting lower risk than models suggest for typical risk aversion levels. […] Welfare gains of at least 10% are achievable if the average observed glidepath is adjusted to the efficient frontier.
Fazit: Viele Anleger investieren zu konservativ.