Hypothèse des marchés efficients contre investissement value : le débat

Dans le monde de la finance, peu d'idées suscitent autant de débats que l'hypothèse des marchés efficients (EMH). Cette théorie façonne les stratégies d'investissement, opposant le suivi passif d'indices à la sélection active d'actions basée sur l'analyse de données. [](https://en.wikipedia.org/wiki/Efficient-market_hypothesis)[](https://www.investopedia.com/terms/e/efficientmarkethypothesis.asp)[](https://www.cfainstitute.org/en/membership/professional-development/refresher-readings/efficient-market-hypothesis-emh)[](https://corporatefinanceinstitute.com/resources/career-map/sell-side/capital-markets/efficient-market-hypothesis-emh/)[](https://www.investopedia.com/articles/basics/04/022004.asp)[](https://www.investopedia.com/terms/v/valueinvesting.asp)[](https://en.wikipedia.org/wiki/Value_investing)[](https://www.cfainstitute.org/en/membership/professional-development/refresher-readings/value-investing-models)[](https://www.investopedia.com/terms/j/januaryeffect.asp)[](https://en.wikipedia.org/wiki/January_effect)[](https://www.investopedia.com/terms/s/small-cap.asp)[](https://en.wikipedia.org/wiki/Small-cap_company)[](https://www.investopedia.com/terms/t/technicalanalysis.asp)[](https://en.wikipedia.org/wiki/Technical_analysis)[](https://www.investopedia.com/terms/b/bubble.asp)[](https://en.wikipedia.org/wiki/Stock_market_bubble)[](https://www.investopedia.com/terms/c/crash.asp)[](https://en.wikipedia.org/wiki/Stock_market_crash)[](https://www.investopedia.com/terms/h/herdinstinct.asp)[](https://en.wikipedia.org/wiki/Herd_behavior)[](https://www.investopedia.com/terms/p/passiveinvesting.asp)[](https://en.wikipedia.org/wiki/Passive_management)[](https://www.investopedia.com/terms/a/activeinvesting.asp)[](https://en.wikipedia.org/wiki/Active_management)[](https://www.investopedia.com/terms/i/indexfund.asp)[](https://en.wikipedia.org/wiki/Index_fund)[](https://www.investopedia.com/terms/e/etf.asp)[](https://en.wikipedia.org/wiki/Exchange-traded_fund)[](https://www.investopedia.com/terms/f/financial-advisor.asp)[](https://en.wikipedia.org/wiki/Financial_adviser)[](https://www.investopedia.com/terms/p/portfoliomanagement.asp)[](https://en.wikipedia.org/wiki/Portfolio_manager)[](https://www.investopedia.com/terms/d/diversification.asp)[](https://en.wikipedia.org/wiki/Diversification_(finance))[](https://www.investopedia.com/terms/t/taxtaxloss.asp)[](https://en.wikipedia.org/wiki/Tax-loss_harvesting)[](https://www.investopedia.com/terms/b/behavioralfinance.asp)[](https://en.wikipedia.org/wiki/Behavioral_economics)[](https://www.investopedia.com/terms/w/warrenbuffett.asp)[](https://en.wikipedia.org/wiki/Warren_Buffett)[](https://www.investopedia.com/terms/i/intrinsicvalue.asp)[](https://en.wikipedia.org/wiki/Intrinsic_value_(finance))[](https://www.investopedia.com/terms/u/undervalued.asp)[](https://en.wikipedia.org/wiki/Undervalued_stock)[](https://www.investopedia.com/terms/o/overvalued.asp)[](https://en.wikipedia.org/wiki/Overvalued)