Correlation between Stocks and Forex are often positive or negative. Most times when the stock exchange rallies high, so does the currency market. This is because when more investors get to the stock exchange, demand for the country’s currency to get the stocks increases.
The stock exchange involves buying and selling of companies’ stocks. If you look into it, comparing companies performances and the Forex market, the companies are directly involved into the country’s economy.
On the other hand, their performances are then reflected on the Forex market. In fact, the country’s economy directly affects stock value then the Forex market.
The stock exchange influences the currency market but it’s not a guarantee that this happens all the time. The correlation between stocks and forex is usually unpredictable.
It may sometimes be negative but this happens at a smaller extent. When volatility rises on one corner of the market, it’s implications for all other markets also. When the stock exchange crashes, it creates a sequence reaction on other markets also .
Likewise, when the U.S. Dollar rises or falls, it creates a ripple effect on the stock exchange also. Perhaps the foremost interesting correlation that exists is that the one between forex (currency) and equity markets.