Supply and Demand: The Only Thing That Matters
Every financial news headline, every analyst report, every earnings call - they're all just different ways of saying: "Here's why people might want to buy or sell."
In the short run, the market is a voting machine. In the long run, it's a weighing machine.
Price Goes UP
More buyers than sellers. Buyers compete by offering higher prices to get shares. Sellers say "I'll wait for a better offer" and prices climb.
Price Goes DOWN
More sellers than buyers. Sellers compete by accepting lower prices to unload shares. Buyers say "I'll wait for a discount" and prices fall.
The three scenarios that determine price direction
| Scenario | Effect | Reason |
|---|---|---|
| More buyers than sellers | Price goes UP | Buyers compete, bid higher |
| More sellers than buyers | Price goes DOWN | Sellers compete, accept less |
| Buyers and sellers balanced | Price stays STABLE | No one needs to budge |
What Actually Moves Stock Prices?
Now the real question: what makes people want to buy or sell? Here are the biggest factors:
1. Earnings (The Biggest One)
Every quarter, companies report how much money they made. Beat expectations? Stock jumps. Miss expectations? Stock drops. It's not about being "good" - it's about being better or worse than what everyone expected.
2. News & Events
CEO steps down. Drug gets FDA approval. Factory catches fire. Competitor launches better product. Any news that affects future profits moves the stock.
3. Market Sentiment (Fear & Greed)
Sometimes the whole market moves on emotion. Panic selling in a crash. FOMO buying in a bubble. Rational? Not always. But it moves prices.
4. Interest Rates & The Economy
When rates go up, borrowing costs more, companies earn less, and stocks often fall. When rates go down, money is cheap, companies grow, and stocks often rise.
Key factors and their typical impact
| Factor | Impact | Example |
|---|---|---|
| Earnings Reports | High | Beat expectations → up 5-20% |
| News & Events | High | FDA approval, CEO scandal |
| Economic Data | Medium | Jobs report, inflation numbers |
| Analyst Ratings | Medium | Upgrade from "hold" to "buy" |
| Overall Market Mood | High | Fear/greed affects everything |
A Year in the Life of a Stock
Here's what a typical stock might look like over one year. Notice how it bounces around but trends upward over time. This volatility is normal - don't panic at every dip.
Normal volatility: Up 42% for the year, but dropped 15% in June alone
Key Insight
This stock ended up 42% for the year - a fantastic return! But at one point (June), it was down 15% from its April high. If you panicked and sold in June, you would have missed the recovery. Short-term drops are normal.
The "Priced In" Concept
This confuses a lot of beginners. You'll hear people say "It's already priced in."
Here's what it means: stock prices reflect everyone's best guess about the future. If everyone already expects Apple to have a great quarter, that expectation is already built into the price. When the good news actually arrives, there's no surprise - so the price doesn't move.
Real Example
Scenario: Tesla is expected to sell 500,000 cars next quarter.
If they sell 550,000: Stock jumps - they beat expectations!
If they sell 500,000: Stock barely moves - exactly what everyone expected.
If they sell 450,000: Stock drops - they missed expectations.
Why This Matters For You
Understanding price movements helps you stay calm when your stocks drop. Here's the practical takeaway:
Daily moves are mostly noise. Unless something fundamental changed about the company, a -3% day means nothing.
Long-term matters more. Over years, prices follow earnings. If a company keeps making more money, the stock will eventually reflect that.
You can't time the market. Professional traders with supercomputers can't consistently predict short-term moves. You definitely can't. Focus on the long game.