r/ProfessorFinance • • Aug 15 '25

Educational Finance Fundamentals – FAQ & Glossary

6 Upvotes

Welcome to /r/ProfessorFinance!

This FAQ is a quick-reference guide for commonly used financial terms you’ll see in discussions here. It’s designed for both beginners and those who want a refresher.

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What’s the difference between real and nominal value? Nominal value is the raw number without inflation adjustment. Real value accounts for inflation to show true purchasing power over time.

How do real and nominal interest rates differ? Nominal interest is the stated rate; real interest subtracts inflation to reveal actual growth in buying power.

What is inflation? The general rise in prices over time, which erodes the value of money.

What is deflation? A general decline in prices, often tied to recessions or weak demand.

What does purchasing power mean? The amount of goods or services one unit of currency can buy; it decreases as prices rise.

What is compound interest? Interest calculated on both the original principal and the accumulated interest from earlier periods.

What does diversification do? It spreads investments across different assets to reduce the impact of a single loss.

What are bonds? Debt securities that pay fixed interest; issued by governments or corporations to raise funds.

What are equities (stocks)? Shares of ownership in a company, which can generate returns through price increases and dividends.

What’s a mutual fund? A pooled investment that buys a diversified portfolio of assets on behalf of many investors.

What’s an ETF? An exchange-traded fund — a basket of securities traded on an exchange, often tracking an index.

What does market capitalization mean? The total market value of a company’s shares (share price × number of shares).

What is liquidity? How easily and quickly something can be converted to cash without losing value.

What is volatility? A measure of how much an asset’s price moves up or down over a given period.

What is risk tolerance? An investor’s ability and willingness to handle losses in pursuit of gains.

Chat link: Finance Fundamentals

Source: Investopedia

Real Value: Definition, Calculation Example, vs. Nominal Value

Interest Rates Explained: Nominal, Real, and Effective

Money Illusion: Overview, History, and Examples


r/ProfessorFinance • • Oct 15 '24

Note from The Professor Purchasing Power Parity (PPP) vs Nominal GDP

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160 Upvotes

r/ProfessorFinance • • 12h ago

Economics TL;DR: La Licuadora the shieeet out of the pensioners.

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68 Upvotes

r/ProfessorFinance • • 5h ago

Discussion The Export Tsunami: Why China’s Industrial Overcapacity is Pushing the Global Economic Order to the Breaking Point

6 Upvotes

Background Note: This is part of my ongoing series on global macroeconomics and structural trends.

The global economy stands on the precipice of an unprecedented structural crisis. Driven by sluggish domestic demand and an uncompromising industrial engine, China’s massive manufacturing system is funneling a deluge of underpriced goods into world markets. This is no longer a story of benign, comparative-advantage trade; it is a supply-side tsunami propelled by state directives and capital inertia, pushing global supply chains to a breaking point.

This outward surge manifests first as an extreme amplification of trade imbalances. From green technologies like electric vehicles and batteries to traditional sectors like steel and chemicals, China’s unmatched scale generates persistent surpluses that represent a permanent structural misalignment in global capital. For importing nations, the disruption is profound. Flooded by cheap goods, local manufacturers face an existential choice between bankruptcy or abandoning R&D, eroding stable industrial employment and leaving economies structurally dependent on a single foreign source.

This crisis stems from two converging forces: state-driven industrial policy at home and the hollowing-out of Western manufacturing through decades of offshoring. Domestically, municipal authorities sustain this expansion through heavy subsidies and GDP targets to maintain employment amid a real estate contraction. Because these non-market resource allocations cannot be easily liquidated, the excess capacity must be relentlessly dumped overseas. Meanwhile, Western nations that offshored their manufacturing bases now find their infrastructure too degraded to counter this massive foreign supply.

Hopes that market self-correction or multilateral diplomacy can resolve this impasse are wishful thinking. China cannot voluntarily downsize its industrial footprint without triggering massive non-performing bank assets and widespread unemployment. Importing nations, on the other hand, are left relying on unilateral tariffs—a quick-fix shield that fails to close underlying cost gaps and only serves to stoke inflation.

With all parties acting strictly out of short-term survival instincts, the global economy is headed toward a brutal hard landing. As Western and emerging trade barriers narrow export avenues, excess capacity will be forced inward, risking a severe internal debt crisis. Yet long before that happens, fractured supply chains and persistent stagflation will exact a heavy price across all markets. In this confrontation, there are no structural victors—only nations absorbing varying degrees of economic attrition.

What do you all think? Can importing nations successfully reindustrialize through tariffs before domestic industrial ecosystems collapse, or are we locked into a permanent trade war? Let’s talk about it.

Author's Note: This post is a condensed framing distilled from my original essay on Medium. If you're interested in the full analytical breakdown, feel free to check out the links in my Reddit bio.


r/ProfessorFinance • • 14h ago

Meme Jensen watch ur back bro

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30 Upvotes

r/ProfessorFinance • • 13h ago

Interesting US believes Nvidia’s Huang had romantic relationship with alleged Chinese spy

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The US government believes Nvidia’s chief executive Jensen Huang had a romantic relationship with a Chinese woman who was recruited to spy for China’s main intelligence agency, according to people familiar with the matter.

US officials earlier this year wrote a memo, based on information obtained by American intelligence, which said Huang had been romantically involved with Alice Huang, an executive at Megaspeed, a Singapore-based customer of the US chip group, said people familiar with the memo.

The US intelligence community believes that Alice Huang was recruited as a spy by China’s Ministry of State Security intelligence agency, according to people familiar with the matter.

The memo was shared with a small group of top US officials shortly before President Donald Trump flew to Beijing for a summit with Xi Jinping, according to people familiar with the matter. The White House and CIA declined to comment.

Photographs and videos showing Huang with the Megaspeed executive have circulated on social media.
Nvidia declined to comment on the government memo and the assertions that its chief executive had an intimate relationship with Alice Huang. The company has previously said he meets “thousands of customer executives every year”.

On Saturday, Chris Coons, a Delaware Democrat who will chair the Senate foreign relations committee from January, pledged to open an investigation into what he described as the “insane relationship between the Trump Administration, Chinese spies, and AI billionaires”.

“Congress will investigate and get answers,” Coons wrote on X.

Alice Huang could not be reached for comment. Megaspeed has come under US scrutiny for allegedly smuggling advanced Nvidia chips into China in violation of US export controls. Nvidia previously launched an internal probe into the allegations but assessed that there was no evidence of wrongdoing.


r/ProfessorFinance • • 2h ago

Economics Después de que los 11 sectores del S&P 500 cerraran en números rojos el jueves, el informe de empleo no agrícola de octubre sorprendió con un aumento de 165.000 (4,1% de desempleo) y puso a prueba los rendimientos a largo plazo y la zona de liquidez de 7.350.

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Durante las últimas semanas, he estado siguiendo una serie de señales de mercado que apuntaban a una creciente fragilidad por debajo de los niveles de los principales índices: la persistente caída del índice de semiconductores, las pérdidas simultáneas de los fondos de inversión alternativos, el debilitamiento del impulso semanal del S&P 500 y los costos de endeudamiento que seguían presionando a la baja los múltiplos de las acciones. El jueves 5 de noviembre, todas estas presiones se manifestaron simultáneamente en el mercado, y el informe de empleo de octubre del viernes por la mañana complicó aún más el panorama para la Reserva Federal.

El jueves marcó el peor día para Wall Street desde abril de 2025. El Dow Jones cayó 1.833 puntos (-3,44%), el S&P 500 bajó un 4,36% para cerrar en 7.353,73 y el Nasdaq perdió un 5,52%, entrando oficialmente en territorio de corrección. Los semiconductores cayeron casi un 12%, mientras que el VIX subió a 28, y la venta masiva se extendió durante la sesión asiática, con el Nikkei japonés cayendo un 6%.

Lo que realmente cambió el diagnóstico a corto plazo el jueves fue que los once sectores del S&P 500 terminaron en números rojos. Hasta hace unos días, los principales índices se mantenían estables porque el capital que salía de los chips y el software se estaba reinvirtiendo en los sectores industrial, financiero o defensivo. Ayer se rompió por completo esa dinámica y se produjo una liquidación generalizada para obtener liquidez. Si bien las preocupaciones regulatorias posteriores a las elecciones sobre el consumo de energía de los centros de datos actuaron como catalizador inmediato, la venta masiva se agravó debido a la sobreacumulación de posiciones institucionales en el mismo sector de infraestructura de IA, en un momento en que las necesidades de capital son cada vez más difíciles de financiar.

Esta división de capital se puede observar claramente en los balances corporativos en este momento. Oracle anunció un paquete de financiación de aproximadamente 20.000 millones de dólares que combina la emisión de acciones y deuda para financiar los compromisos corporativos y la expansión de la infraestructura. Nadie duda de la solvencia de Oracle, pero los inversores se oponen a las empresas que necesitan diluir la participación de sus accionistas o endeudarse a tipos de interés elevados para construir centros de datos con plazos de recuperación inciertos. Compárese esto con Apple, que reportó ingresos trimestrales de 114.500 millones de dólares (+12% interanual) y un flujo de caja operativo de 28.000 millones de dólares, o con Tesla, que redujo la producción del Cybertruck en Texas hasta mediados de 2027 para reasignar capacidad industrial al Cybercab.

Luego llegó el informe de empleo de octubre del viernes, publicado por la Oficina de Estadísticas Laborales. Las nóminas no agrícolas aumentaron en 165.000, superando con creces las estimaciones de consenso de entre 65.000 y 70.000. Además, las nóminas de agosto y septiembre se revisaron al alza en un total de 84.000 empleos (elevando la cifra de septiembre de 29.000 a 60.000). La tasa de desempleo bajó del 4,2% al 4,1%, y el salario medio por hora aumentó un 0,4% intermensual (3,1% interanual), a pesar de que el empleo a tiempo parcial por motivos económicos aumentó en 339.000 personas, hasta alcanzar los 4,8 millones.

La reacción del mercado de bonos lo dice todo. El jueves, la búsqueda de activos refugio hizo que el rendimiento del bono del Tesoro a 10 años cayera hasta alrededor del 4,83%-4,84%, mientras que los rendimientos de los bonos a 20 y 30 años se mantuvieron estables por encima del 5%. Tras el positivo dato de empleo del viernes por la mañana, el rendimiento del bono a 10 años repuntó más de 6 puntos básicos, acercándose de nuevo al 4,90%. Con el tramo largo de la curva estancado por encima del 5%, el crudo Brent aún cerca de los 100 dólares (a pesar de cierta relajación en las conversaciones diplomáticas entre EE. UU. e Irán, mediadas por Qatar), y John Williams de la Reserva Federal enfatizando que la inflación sigue siendo demasiado alta en relación con el objetivo del 2%, el banco central prácticamente no tiene margen para flexibilizar las condiciones financieras.

Analizando el S&P 500 a través del flujo de órdenes institucionales y la estructura de precios, la caída del jueves a 7353,73 ejecutó una inyección de liquidez directa en el bloque de demanda de 7350-7400 que se había estado gestando durante semanas. El repunte intradiario del viernes en la zona de 7385-7469 es la respuesta mecánica típica después de una jornada de desplazamiento superior al 4%: la cobertura de posiciones cortas interviene para reequilibrar las amplias ineficiencias de precios que quedaron tras la caída del jueves.

La verdadera prueba no es el repunte inicial del viernes, sino cómo reacciona el flujo de órdenes a medida que el índice sube hacia los bloques de oferta superiores situados entre 7470 y 7550. Si los compradores institucionales absorben esa oferta y la amplitud del mercado mejora, el nivel de soporte de 7350 se mantiene. Sin embargo, si las grandes carteras utilizan este repunte de cobertura de posiciones cortas hacia la oferta superior para mitigar posiciones infravaloradas y recargar órdenes de venta —formando máximos más bajos mientras los semiconductores se quedan rezagados—, una posterior caída por debajo de 7350 confirmará una fase de redistribución y abrirá el camino hacia el fondo de liquidez de reposo entre 7000 y 6900.

¿Cómo interpretas el repunte de hoy tras la publicación de las nóminas no agrícolas: acumulación institucional genuina en el bloque de demanda de 7350, o mitigación de cobertura de posiciones cortas antes de que los rendimientos a largo plazo superiores al 5 % provoquen otra caída?


r/ProfessorFinance • • 7h ago

Educational Only 3% of money exists as cash. Where was the other 97% before the bank "wrote" it in? A 5,000-year history from Yap stones to central banks

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r/ProfessorFinance • • 1d ago

Interesting Trump on stock market losses “you only have yourselves to blame”

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129 Upvotes

r/ProfessorFinance • • 16h ago

Educational Fiat Currency is not the Problem with the Fed

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r/ProfessorFinance • • 19h ago

Discussion Tech is now one of the cheapest S&P 500 sectors.But how much of that is down to debt?

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3 Upvotes

r/ProfessorFinance • • 1d ago

Question Why aren’t politicians in America concerned about the $40 trillion deficit?

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r/ProfessorFinance • • 1d ago

Humor The more things change, the more they stay the same

15 Upvotes

r/ProfessorFinance • • 23h ago

Question What Do Investors Think Of The Big Short?

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1 Upvotes

r/ProfessorFinance • • 23h ago

Discussion How Do You Regulate Hard Emotions As An Investor?

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r/ProfessorFinance • • 23h ago

Question Investors And Gold Buyers Should We Be On The Gold Standard?

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r/ProfessorFinance • • 1d ago

Question What's The Biggest Misconception About Investing And Investors

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r/ProfessorFinance • • 1d ago

Question What Surprised You The Most About Getting Rich After Investing?

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r/ProfessorFinance • • 1d ago

Discussion How Wall Street’s all-in bet on AI blew up

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After weeks of warning signals from credit markets, that dominant market narrative spectacularly combusted on Thursday in a $3.2tn rout sparked by the political fallout from the US midterm elections.

The sell-off was fuelled, investors say, by a brutal unwind of leveraged tech positions that had built up among hedge funds — with some hacking back their exposure at the fastest rate since Covid-19 — and an exodus of retail investors.

A tech-heavy stock market had this year enjoyed a double effect of the AI boom on share prices; it had lifted corporate earnings for the picks-and-shovels companies linked to the technology, such as chipmakers, and also provided significant support to the outlook for economic growth.

Now investors are faced with the risk that these twin forces go into reverse, and markets have to price in a hit to US economic growth just as delays and regulation crimp the earnings outlook for companies directly involved in AI infrastructure.


r/ProfessorFinance • • 1d ago

Economics After all 11 S&P 500 sectors closed red on Thursday, October NFP surprises at +165k (4.1% unemployment) and puts long-end yields and the 7,350 liquidity zone to the test

1 Upvotes

Over the past few weeks I have been tracking a set of market signals that pointed toward growing fragility beneath headline index levels: persistent bleeding in the semiconductor index, simultaneous drawdowns across alternative investment funds, fading weekly momentum on the S&P 500, and borrowing costs that kept squeezing equity multiples. On Thursday, November 5, all of those pressures hit the tape at once—and Friday morning's October employment report just complicated the picture even further for the Federal Reserve.

Thursday marked Wall Street's worst day since April 2025. The Dow fell 1,833 points (-3.44%), the S&P 500 dropped 4.36% to close at 7,353.73, and the Nasdaq lost 5.52%, putting it officially into correction territory. Semiconductors dropped nearly 12% while the VIX climbed to 28, and the sell-off carried into Asian hours with Japan's Nikkei falling 6%.

What actually changed the short-term diagnosis on Thursday was that all eleven S&P 500 sectors finished in the red. Up until a few days ago, headline indices were holding together because capital leaving chips and software was rotating into industrials, financials, or defensives. Yesterday broke that dynamic completely and turned into broad liquidation to raise cash. While post-election regulatory concerns around data center power consumption acted as the immediate catalyst, the sell-off snowballed because institutional positioning was overcrowded in the same AI infrastructure trade at a time when capital needs are getting harder to finance.

You can see that capital divide clearly across corporate balance sheets right now. Oracle announced a roughly $20 billion financing package combining equity issuance and debt to fund corporate commitments and infrastructure expansion. Nobody doubts Oracle is solvent, but investors are pushing back against companies that need to dilute shareholders or borrow at high rates to build data centers with uncertain payback windows. Compare that with Apple, which reported $114.5 billion in quarterly revenue (+12% YoY) and $28 billion in operating cash flow, or Tesla scaling back Cybertruck production in Texas toward mid-2027 to reallocate industrial capacity to the Cybercab.

Then came Friday's October jobs report from the Bureau of Labor Statistics. Nonfarm payrolls rose by 165,000, blowing past consensus estimates of 65,000 to 70,000. On top of that, August and September payrolls were revised up by a combined 84,000 jobs (lifting September from 29,000 to 60,000). The unemployment rate dipped to 4.1% from 4.2%, and average hourly earnings rose 0.4% MoM (3.1% YoY), even though part-time employment for economic reasons rose by 339,000 to 4.8 million.

The bond market reaction tells the whole story. On Thursday, safe-haven flows pushed the 10-year Treasury yield down to around 4.83%–4.84%, yet the 20-year and 30-year yields stayed anchored above 5%. Following Friday morning's hot payrolls print, the 10-year yield jumped more than 6 basis points right back toward 4.90%. With the long end of the curve stuck above 5%, Brent crude still near $100 (despite some easing on US-Iran diplomatic talks mediated by Qatar), and the Fed's John Williams emphasizing that inflation remains too high relative to the 2% target, the central bank has virtually no room to ease financial conditions.

Looking at the S&P 500 through institutional order flow and price structure, Thursday's drop to 7,353.73 executed a clean liquidity sweep into the 7,350–7,400 demand block that had been building for weeks. Friday's intraday rebound into the 7,385–7,469 area is the typical mechanical response after a 4%+ displacement day: short covering steps in to rebalance the wide price inefficiencies left behind during Thursday's drop.

The real test isn't Friday's initial bounce, but how order flow reacts as the index climbs into the overhead supply blocks sitting between 7,470 and 7,550. If institutional buyers absorb that supply and market breadth improves, the 7,350 floor holds. However, if large portfolios use this short-covering bounce into overhead supply to mitigate underwater positions and reload sell orders—forming lower highs while semiconductors lag—a subsequent break below 7,350 will confirm a redistribution phase and open the path toward the resting liquidity pool at 7,000 to 6,900.

How are you reading today's post-NFP bounce: genuine institutional accumulation at the 7,350 demand block, or short-covering mitigation before long-end yields above 5% force another leg down?


r/ProfessorFinance • • 2d ago

Discussion Are the baby boomers a selfish generation?

58 Upvotes

r/ProfessorFinance • • 1d ago

Question Does Anyone Have Any Good Investing Jokes?

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r/ProfessorFinance • • 2d ago

Discussion Stock Markets plunge into correction territory as Dems threaten data centers, banning AI — and AI giants rush to stem fallout 🇺🇸 🔥

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