# Trading vs investing: two different games

> Holding for years and trading for days are different games with different risks, and someone is always on the other side.

- Course: [Trading Basics: How It Works, How Not to Lose Everything](https://productovi.com/courses/trading.md)
- Module: What is trading, and should I even try?
- Lesson 1/32, ~27 min
- Source: https://productovi.com/courses/trading/trading-vs-investing

## Where you start

**Alex Tutor:** Welcome. This course has no company and no job: just you and **Pebble**, a made-up beginner app for buying and selling. You've opened a Pebble **practice account** with 10,000 practice dollars and a small market of five made-up instruments. No real money moves here.

**Alex Tutor:** I'm Alex, a coach on Pebble's Learn team. I lost real money in my first year, so now I teach with numbers. You'll learn what trading costs, how much you can lose and how to decide with a plan. Today: trading versus investing.

![Nora hurries along a short path of tiny stepping stones, Marc waits calmly by a stack of pebbles on a long winding path, and Alex stands between them at a practice-account phone.](https://productovi.com/courses/trading/diagrams/m1-l1-scene.png)

## "Investing, only faster"

**Nora:** Hi! I started three months ago and I'm up. It's simple: I do what investors do, only faster. Why wait ten years when you can win in a week?

**Sofia:** Isn't it the same thing? Buy lower, sell higher.

**Alex Tutor:** Same buttons, different game. Compare four things: how long you hold (horizon), what you're after (goal), how much attention it takes (effort) and what can go wrong (risk).

**Alex Tutor:** **Investing**: you hold for years, aim to share in businesses' growth, check in rarely, and must sit through long falls. **Trading**: you hold for minutes to weeks, aim to profit from price moves, watch closely, can lose fast, and pay costs on every trade.

![Investing: years, a share in growth, rare check-ins, long falls. Trading: minutes to weeks, profit from price moves, close attention, fast losses and costs on every trade.](https://productovi.com/courses/trading/diagrams/m1-l1-two-games.png)

*Same buttons, different game.*

**Marc:** I do a little of both, in separate accounts. The fund money I leave alone for years. The trading account has written rules and a journal, because there every decision costs something.

> **Exercise:** Which of these describe trading rather than investing? Choose all that apply.

**Alex Tutor:** Try the four questions on a few Pebble users. For each plan, name the game it belongs to.

> **Exercise:** Match each Pebble user's plan with the game it belongs to.

## Who is on the other side

**Alex Tutor:** Here's what "only faster" misses. When you buy, someone sells to you. When you sell, someone buys from you. Every trade has another side.

**Nora:** Who cares who it is? The app just fills my order.

**Alex Tutor:** It matters. On the other side may be a professional firm, a computer program that reacts in thousandths of a second, or another beginner. Many of them know more, see faster or pay less per trade than you.

**Sofia:** So it's not me against "the market". It's me against other people and their machines.

> **Exercise:** You buy 10 shares of Northwind Foods on your Pebble practice account. Who can be on the other side of that trade?

**Nora:** Fine, but last week I made 50 dollars in an hour. That's real money from somewhere.

**Alex Tutor:** In one hour the company behind a share doesn't grow in any way that matters. So your 50 dollars is mostly someone else's 50-dollar loss, before costs. After costs, traders as a group end up behind.

**Alex Tutor:** Holding for years works differently. A company can earn profits and grow, and the people who hold it share in that, if it happens. It's not guaranteed, but the gain isn't only someone else's loss.

![When Nora buys, someone sells. In a one-hour trade her +50 dollars is mostly the other side's −50: together 0 before costs, and behind after costs.](https://productovi.com/courses/trading/diagrams/m1-l1-other-side.png)

*One side's quick gain is mostly the other side's loss.*

> **Exercise:** Nora made 50 dollars on a one-hour trade. That money came mainly from the company growing during that hour.

**Alex Tutor:** Now flip it. What about the Harbor fund held for ten years: is that gain also just someone else's loss?

> **Exercise:** Like a one-hour trade, the gain from holding a fund of many companies for ten years can only be someone else's loss.

## Holding isn't calm either

**Nora:** So investing is the safe, boring option?

**Alex Tutor:** Not safe. Look at the **Harbor 20 Index Fund** on Pebble's market: an **index fund**, one fund holding 20 made-up companies. Here are its month-end prices over two years. The data is invented; it shows a shape, not what to expect.

**Harbor 20 Index Fund, month-end close**

| month | Close |
| --- | --- |
| 2024-01 | 102.91 |
| 2024-02 | 105.04 |
| 2024-03 | 107.18 |
| 2024-04 | 109.01 |
| 2024-05 | 111.69 |
| 2024-06 | 111.1 |
| 2024-07 | 113.32 |
| 2024-08 | 106.41 |
| 2024-09 | 100.88 |
| 2024-10 | 97.05 |
| 2024-11 | 102.29 |
| 2024-12 | 105.93 |
| 2025-01 | 107.75 |
| 2025-02 | 109.28 |
| 2025-03 | 109.59 |
| 2025-04 | 108.53 |
| 2025-05 | 110.18 |
| 2025-06 | 111.6 |
| 2025-07 | 112.83 |
| 2025-08 | 112.1 |
| 2025-09 | 112.46 |
| 2025-10 | 112.02 |
| 2025-11 | 110.94 |
| 2025-12 | 111.66 |

**Dataset (CSV):** [Harbor 20 Index Fund, 24 month-end closes](https://productovi.com/datasets/trading/trading-vs-investing/hrb_monthly.csv)

**Alex Tutor:** First, the whole stretch. If you'd bought at the first close and held to the last, your **hold return** is the change divided by where you started: (last − first) ÷ first.

**Sofia:** The first close is 102.91 and the last is 111.66.

> **Exercise:** Hold return of the Harbor 20 Index Fund from the first close (102.91) to the last (111.66), in percent, rounded to one decimal place.

**Alex Tutor:** Now the uncomfortable part. Find the highest close, then the lowest close after it. The drop between them, as a share of the peak, is the **worst fall from a peak**. Traders call it **drawdown**.

**Nora:** The top is 113.32 in July 2024. After that it slides for three months.

**Alex Tutor:** Right. Use the lowest close that comes after that peak.

> **Exercise:** What was the worst fall from a peak of the Harbor 20 Index Fund in this data, in percent, rounded to one decimal place?

## Two temperaments

**Marc:** I added money right at that July top. By October I was down about 14%, and doing nothing felt awful. Holding is a skill too: sitting still while it hurts.

![The Harbor fund gained 8.5% over two years (102.91 to 111.66), but on the way it fell 14.4% from its peak of 113.32 to 97.05, below its first price.](https://productovi.com/courses/trading/diagrams/m1-l1-worst-fall.png)

*Holding asks for patience through falls like this one.*

**Alex Tutor:** So neither game is "the safe one". Investing asks for patience through falls like this. Trading asks for fast decisions, every one paying costs against people who may know more. Pick a game knowing which one you're playing.

**Nora:** Fine, maybe "only faster" was too quick.

**Alex Tutor:** Before you write to Nora, one last check: which game is the safe one?

> **Exercise:** Nora asks which of the two games is the safe one. Which answer is accurate?

> **Exercise:** Nora says she'll "do what investors do, only faster". In 2–3 sentences, explain to her how trading differs from investing and where a quick trading gain mostly comes from.

> **Key ideas**
>
> - **Investing**: years, a share in businesses' growth, rare check-ins, long falls to sit through.
> - **Trading**: minutes to weeks, profit from price moves, close attention, costs on every trade.
> - Every trade has another side: a professional firm, a program or another beginner.
> - A short-term gain is mostly someone else's loss before costs; after costs, traders as a group are behind.
> - Holding has hard stretches too: the Harbor fund gained 8.5% over two years but fell 14.4% from its peak on the way.

> **Educational, not advice**
>
> This course teaches how trading works; it never tells you what to buy or sell. Most people who trade lose money, and you can lose all of it. For taxes and rules, ask a licensed professional where you live.

**Alex Tutor:** Next: where the money goes on every single trade, even when you guess the direction right.

- Next lesson: [Where the money goes: spread, fees and slippage](https://productovi.com/courses/trading/where-the-money-goes.md)

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