Como são determinados os preços das ações? 10 fatores-chave explicados

5
min de leitura
5
min de leitura
Seta em ziguezague apontando para cima com setas para cima e para baixo ao lado, simbolizando fatores que influenciam os preços das ações.

Stock prices don’t just bounce around randomly. They follow patterns, trends, and reactions to market forces. If you’ve ever wondered why some stocks soar while others crash, it all comes down to key factors that influence supply and demand. Let’s break down what really moves stock and index prices.


The basics: Supply, demand, and stock prices

At its core, stock price movement is a simple equation: more buyers than sellers? Prices go up. More sellers than buyers? Prices go down. But what influences whether people want to buy or sell? That’s where these 10 key factors come in.


10 factors that affect stock prices


1. Economic indicators economic indicators

How’s the economy doing? Things like GDP growth, unemployment rates and inflation affect investor confidence. A strong economy? Investors feel good, and stock prices rise. A sluggish economy? Investors get nervous, and stock prices drop.


2. Interest rates

Central banks such as the Bank of England or Federal Reserve, set interest rates, and that impacts stocks in a big way. Lower rates make borrowing cheaper, boosting business growth and stock prices. Higher rates? Borrowing gets expensive, and stock prices may take a hit.


3. Corporate earnings & performance

A company’s financial health is a huge deal. Strong earnings reports? The stock price climbs. Disappointing earnings? Expect a dip. Investors also look at revenue growth, debt levels, and future projections to gauge a company’s strength.


4. Market sentiment market sentiment

Markets aren’t always logical. Feelings play a role, too. Positive news? Investors get excited, and prices rise. Bad news? Fear kicks in, and prices may fall. Market sentiment is influenced by everything from headlines to social media chatter.


5. Political & geopolitical events

Elections, wars, trade policies. These can all shake up stock prices. Political stability is good for markets, while uncertainty can lead to big swings.


6. Sector performance

Sometimes, a whole industry moves together. If tech stocks are booming due to new innovations, individual companies in that sector often rise with the tide. The opposite happens when an industry struggles.


7. Technological changes & innovation

New technologies can shake up industries. Consider how electric vehicles reshaped the automotive industry or how streaming disrupted traditional media. Innovation can create winners and losers in the stock market.


8. Market liquidity

How easily can a stock be bought or sold? If there’s high liquidity, prices move smoothly. If liquidity is low, prices can jump around unpredictably.


9. Foreign exchange rates

For companies that operate globally, currency fluctuations can impact their profits. A strong local currency can make exports more expensive, hurting earnings, while a weak currency can boost international sales.


10. Regulatory changes

Governments make rules that affect businesses. More regulations can increase costs for companies, while deregulation can create new opportunities. Investors keep a close eye on policy shifts that might impact their holdings.

Stock prices move for a reason, and understanding these 10 factors can help you make smarter trading decisions. Ready to put your knowledge to the test? 

Explore top stocks and indices on Deriv today. Practise first with a free demo account before trading live.

Questionário

O que acontece quando a Reserva Federal aumenta as taxas de juro?

?
As ações geralmente sobem
?
As ações geralmente descem
?
As taxas de juro não afetam as ações
?

Perguntas frequentes

Os preços das ações podem ser previstos com certeza?

Na verdade, não! Embora os investidores utilizem dados e tendências para fazer previsões informadas, os mercados de ações são influenciados por muitos fatores imprevisíveis, incluindo emoções e acontecimentos globais.

Por que algumas ações sobem mesmo quando a economia está em dificuldades?

Algumas indústrias, como os cuidados de saúde e serviços públicos, têm bom desempenho mesmo em tempos difíceis porque as pessoas precisam sempre dos seus serviços. Estas são chamadas "ações defensivas".

Com que frequência devo verificar os preços das ações?

Isso depende do seu estilo de negociação. Os investidores de longo prazo não precisam de verificar diariamente, enquanto os traders ativos podem monitorizar os preços ao longo do dia.

Coloque as suas análises em ação

Transfira a Deriv App

Analise os mercados com informações baseadas em IA

Explorar a TradersView

Junte-se a 3M+ traders