Old Market Sage

EBITDA and free cash flow are not the same thing, and confusing them is one of the most expensive mistakes investors make.

EBITDA strips out interest, taxes, depreciation, and amortization to show operating performance. It's an accounting construct. Clean, simple, easy to compare across companies.

Free cash flow is what's left after you pay for everything the business actually needs to survive and grow — capex, working capital, debt service, the whole messy reality of running a company.

EBITDA can look beautiful while cash is bleeding out the door. I've watched too many investors fall in love with high EBITDA margins only to realize the company was burning cash to maintain them.

Cash is truth. EBITDA is just one lens. Know the difference.

Peter Lynch acumuló un 29% al año durante 13 años. Legendario. De $10k a $260k.

Pero incluso durante esa racha, su fondo cayó un 10% o más quince veces. Seis veces cayó un 15%. Cuatro veces cayó un 20%. Una vez cayó un 35%.

Y más de la mitad del tiempo, el fondo estaba por debajo de su pico reciente.

Así es como se ve ganar. Las caídas (drawdowns) no son errores. Son características. El costo de entrada.

La mayoría de la gente no puede soportar estar “en negativo” la mitad del tiempo, incluso cuando la trayectoria a largo plazo va hacia arriba y a la derecha. Por eso la mayoría no logra rendimientos tipo Lynch.

La volatilidad no es una señal de que algo esté roto. Es una señal de que estás en el juego.

Encontré una foto antigua de 1983. Llamé directamente a las mesas de negociación. A veces esperé horas a que se ejecutaran las órdenes cuando los mercados se movían rápido.

Pantallas negras con cotizaciones de neón parpadeantes. Sin gráficos en computadora. Sin algoritmos. Solo precios, gráficos de papel y un teléfono.

Las herramientas cambiaron. La naturaleza humana no.

Seth Klarman's "Margin of Safety" remains one of the most sought-after investing books ever written.

Published in 1991, never reprinted, now trades for thousands of dollars on the secondary market.

Why? Because Klarman captured something timeless: the difference between price and value, and why that gap is your only real edge.

He wrote during the junk bond mania of the late 80s. Watching investors chase yield without understanding risk. Watching leverage destroy fortunes overnight.

Sound familiar?

The book's scarcity has become almost mythical. But the ideas inside aren't complicated. They're just unfashionable.

Buy assets for less than they're worth. Demand a cushion for error. Accept that you'll miss rallies. Survive first, optimize second.

Wall Street hates this message because it doesn't generate fees. Social media hates it because it's boring. Retail hates it because it requires patience.

But every investor who's survived multiple cycles knows: Klarman was right.

The margin of safety isn't about being clever. It's about staying solvent long enough to be there when others aren't.

Todo el mundo se obsesiona con los puntos de entrada, las estrategias de salida y con sincronizar el siguiente movimiento.

Pero la ventaja real? Simplemente no vender.

Lo más difícil de invertir no es encontrar buenas oportunidades. Es quedarse quieto cuando tu cerebro te grita que hagas algo. Cuando todos a tu alrededor entran en pánico y venden, o persiguen la siguiente cosa brillante.

La mayoría de la gente pierde dinero no porque eligió mal, sino porque no pudo soportar tener la razón el tiempo suficiente.

El tiempo en beats, el timing. Siempre ha sido así.

Most people treat trading like a side hustle or a get-rich scheme. They want the returns without the transformation.

But the traders who last—the ones still standing after decades—didn't just learn patterns or risk management. They rebuilt themselves from the inside out.

You can't separate the trader from the person. Your discipline, your emotional wiring, your relationship with fear and greed—it all shows up in your P&L.

The market doesn't reward intelligence. It rewards self-knowledge and patience. It punishes ego and impatience without mercy.

If you're not willing to pour your whole self into understanding both the game and yourself, you're just gambling with extra steps.

The labor shift isn't coming. It's here.

Not all at once. Never all at once. It starts quiet—warehouses, factories, the repetitive stuff nobody wants to romanticize. Moving boxes. Sorting parts. Stocking shelves.

Then it spreads. Task by task. Job description by job description.

Eventually, the world splits into two camps: those trying to outwork the machine, and those who figured out how to make the machine work for them.

The winners won't be the ones with the fanciest degrees or the loudest opinions. They'll be the ones who saw it early, adapted without drama, and learned to manage systems instead of resisting them.

Most people won't notice until the market has already moved. That's how it always works. The revolution doesn't announce itself. It just shows up one day, and you either prepared or you didn't.

The market has always been a patient person's game.

Pick any 20-year window in history and you'll find the same truth: it rewards those who show up, stay put, and don't panic.

The 'appropriate time period' isn't a technicality—it's the whole point. Time turns volatility into compounding. Noise into signal. Fear into wealth.

Most people get this backwards. They treat the market like a slot machine when it's actually more like a tree farm.

The boring stuff nobody celebrates:

Not upgrading when you don't need to. Not borrowing when you can wait. Not chasing when you're already winning.

Wealth isn't built in the big moves. It's protected in the thousand small decisions to just... not.

The car that still runs. The house that still fits. The life that doesn't need more square footage to feel complete.

Most people lose money trying to look like they have money.

Markets always give you permission to panic.

There's never a shortage of smart-sounding reasons to sell. Valuations too high. Macro uncertainty. Geopolitical risk. Technical breakdown. Sentiment shift.

The hard part isn't finding reasons to exit. It's having the conviction to ignore them when they're noise, and the discipline to act when they're signal.

Most people get this backwards. They hold through real deterioration and sell during temporary discomfort.

Time in beats timing. But only if you can tell the difference between a reason and an excuse.

Took me years to stop being a slave to the P/E ratio.

A business compounding at 40% annually and trading at 100x earnings? Could be the steal of the decade.

A melting ice cube trading at 5x? You might still lose money.

Valuation without growth trajectory is just a number. The market pays for the future, not the past.

Since 1776, US stocks have returned 8.7% annually. Through wars, depressions, panics, crashes, and every generation's certainty that the world was ending.

The chart just keeps going up.

Not because markets are magic. Because great businesses adapt. They raise prices when they must. They cut costs when they can. They build new products. They find new customers. The economy doesn't stay still.

Long-term investing feels painfully boring while you're living it. It looks obvious only when you zoom out decades later.

$1 at 8.7% for 250 years becomes $1.1 billion. That's not a prediction. That's what already happened.

Own great assets. Give them time. Let America compound.

The math is simple but the psychology is brutal.

Most people can't stomach a decade of delayed gratification. They want the payoff now. They check their portfolio daily. They panic at every 10% drawdown.

But compound interest doesn't care about your feelings. It rewards patience, not cleverness.

Feed the machine when you're young and hungry. Let time do the heavy lifting. The first ten years feel like nothing is happening. Then suddenly, everything happens at once.

The hardest part isn't the strategy. It's sitting still while everyone around you is chasing the next thing.

The math of futures trading is brutal and honest.

Most people enter with dreams of multiplication. The reality? You're more likely to get cut in half.

This isn't pessimism. It's just what the data shows after 50 years of watching people trade with leverage.

The house edge isn't in the market. It's in human nature — overconfidence, impatience, the inability to sit still when you should.

If you want to end with something, start with more than you think you need. Or better yet, start with less and learn the lesson cheaply.

Warren Buffett's first rule: Don't lose money.

His second rule: Don't forget the first rule.

This isn't about being clever. It's about survival. Most people spend their entire careers chasing gains while ignoring the only thing that actually matters — not blowing up.

Preservation isn't sexy. It doesn't make for good dinner party stories. But it's the difference between being around for the next cycle and being a cautionary tale.

Protect capital first. Everything else is secondary.

Everyone's racing to build AI data centers. Nobody's asking where the power comes from.

Look at the electricity price map right now—blue zones where power's practically free, red zones where it's spiking. That's not just summer heat or old wires. That's a preview.

We're adding massive compute before we've fixed the grid. The bottleneck won't be chips or capital. It'll be watts.

The next American shortage might not be something exotic. It might just be electricity.

La mayoría de las personas tratan el trading como entretenimiento. Quieren el golpe de dopamina, no el trabajo.

Yo no estoy aquí para la multitud. Estoy aquí para el puñado de gente que de verdad quiere aprender—que entiende que cada ventaja que vale la pena se paga con errores, pérdidas y humildad.

Yo lo aprendí a la fuerza. Si compartir esto le salva a alguien unas cuantas cicatrices, bien.

Todo el mundo está obsesionado con la configuración perfecta del gráfico, la entrada ideal, el patrón de manual.

Pero eso no es lo que separa a los que sobreviven de los que acaban destrozados.

La ejecución importa. La gestión del riesgo importa. El tamaño de la posición importa. Saber cuándo estás equivocado importa más que saber cuándo tienes razón.

La configuración es solo el comienzo. Lo que haces después: ahí está el juego completo.

Only 3 in 1,000 people who attempt trading actually make it profitable long-term.

If you're trying to become one of them, understand this upfront: there's real pain ahead. Tuition gets paid in losses, sleepless nights, and humbling lessons.

The question isn't whether you want it. The question is whether you're willing to pay what it costs to find out if you're one of the three.

The difference between traders who survive and those who blow up isn't strategy. It's the boring stuff nobody wants to talk about.

Position sizing. Stop discipline. Journaling every trade. Not revenge trading after a loss. Waiting for your setup instead of forcing action.

Most people think they need a better system. What they actually need is to stop ignoring the fundamentals that feel too simple to matter.

The little things compound. In markets, obsession with details isn't perfectionism—it's survival.