David Orrell retweeted
Recap #QUANT2026
Esiste un comportamento reale della volatilità dei mercati che nessun modello riesce a simulare. E nessuno sa ancora perché.
Nel suo intervento al #QUANT2026, Paul Willmott, matematico, fondatore di wilmott.com e tra le voci più iconoclaste della finanza quantitativa mondiale, ha portato sul palco una delle domande aperte più affascinanti del settore.
Il modello di David Orrell, partendo dalla fisica quantistica, fa una previsione precisa sul comportamento della varianza dei prezzi, chiamata q-variance, con un solo parametro. Per confronto, il modello di Heston ne usa quattro.
La previsione si verifica. Su azioni, indici, valute. Su tutti i timeframe. Con lo stesso coefficiente.
Il problema? Nessuno riesce a simularlo in tempo continuo!
Wilmott ha consultato i più famosi quant al mondo. Ha aperto una competizione pubblica su wilmott.com. Decine di partecipanti. Nessuna risposta soddisfacente.
GARCH? No. Heston? No. Jump diffusion? Neanche.
Un modello che predice la realtà meglio di tutti gli altri e che ancora non sappiamo come costruire formalmente.
▶️ Vuoi vedere la registrazione integrale dell'intervento e partecipare a questa sfida? Seguici sul nostro canale YouTube e attiva la campanella: youtu.be/M2cqAAZemso?si=CGij…
#Quant2026 #PaulWilmott #QuantitativeFinance #Volatility #AssetManagement #Econophysics #MathematicalFinance #Derivatives
David Orrell retweeted
It's publication day!
A book 🧵
bristoluniversitypress.co.uk…
David Orrell retweeted
#Canada is trying to bump up its population growth through #immigration amid dwindling birth rates, but a better #economy doesn’t equate to a larger one and this approach could prove to be no more than an economic stopgap.
worldfinance.com/the-econocl…
David Orrell retweeted
Quantum Economics: Could A New Economic Paradigm Be Guided By Quantum Models?
thequantuminsider.com/2024/0…
#QuantumEconomics #QuantumModels #EconomicInnovation
David Orrell retweeted
The #volatility smile can seem illogical from the perspective of classical #finance, but applying quantum logic allows us to see that it accurately describes a genuine aspect of the #market.
worldfinance.com/the-econocl…
David Orrell retweeted
It's nearly Halloween, and quantum entanglement continues to "spook"!👻🎃#quantumfinance
David Orrell retweeted
"...some in academia are starting to take quantum ideas a little more seriously but an interesting question is why it took so long."
Check out the full interview with @d_orrell, our co-editor-in-chief, below.
#quantumscience #quantumfinance
e-ir.info/2023/10/22/intervi…
David Orrell retweeted
"Its trick is to present itself, not so much as a prediction, but rather as a magical machine which somehow defines the correct option price – like a mentalist who predicts the future by making it happen."
Learn about the magic of the Black-Scholes Model: bitly.ws/UbfN
David Orrell retweeted
A stunning, entertaining critique of psychology. Many points apply to anthropology, political science, and sociology. #EconTwitter : many also to economics? experimental-history.com/p/i…
David Orrell retweeted
Open call for high-impact topics in quantum social science! The @OhioState Quantum Soc. Sci. Bootcamp is creating Top 5 lists of potentially high-impact articles that could be written in various disciplines. Share your ideas below: rb.gy/2c2gs
David Orrell retweeted
The Nobel prize-winning model has been heralded as a game changer for #traders but in making sweeping assumptions about #growth and #volatility, it is perhaps not quite as elegant as it seems.
worldfinance.com/the-econocl…
David Orrell retweeted
Today is the day, pop in to listen to @EmmanuelPothos, from our Editorial board discuss quantum cognition, all are welcome! u.osu.edu/quantumbootcamp/sc…
David Orrell retweeted
Our journal is now live! We are looking forward to receiving your submissions.
us.sagepub.com/en-us/nam/qua…
David Orrell retweeted
QEF is a new journal focusing on the applications of quantum approaches to finance and economics. Visit our website here: us.sagepub.com/en-us/nam/qua…
We will be accepting manuscript submissions in the near future and look forward to showcasing your work in this area!
David Orrell retweeted
Check out the Black-Scholes 50th Anniversary Conference this Wednesday, 14 June, where @d_orrell, co-editor of the upcoming journal Quantum Economics and Finance, will be speaking. #quantitativefinance #blackscholesmodel @CQFInstitute
Register here: ow.ly/kJ2H50OMNvL
David Orrell retweeted
Pricing the Future - Black Scholes @50 gaiageld.com/2023/06/12/pric…
David Orrell retweeted
Ancient Pythagorean ideas about a "music of the spheres" have been central to the development of modern physics, now musicians are trying to make "quantum music". Can superposition and entanglement be new sources of audio pleasure? @philipcball speculates
physicsworld.com/a/can-we-us…
David Orrell retweeted
An interesting paper from @d_orrell and Larry Richards.
It argues that there's a major flaw in the Black-Scholes model of options pricing. The problem? Price volatility seems to be a function of the strike price.
papers.ssrn.com/sol3/papers.…
David Orrell retweeted
"Economists seem to want to have it both ways – they want to be seen as serious scientists, but when it comes to prediction all they have is that the economy can’t be predicted"
worldfinance.com/the-econocl…
David Orrell retweeted
Predicting the #economy is a perilous and unforgiving task, one suited to magicians and storytellers. #Economists need to learn new tricks and tell fresh stories to satisfy their audience.
worldfinance.com/the-econocl…
















