In the chart above,notice how support and resistance alternate at the same price levels at different times during the the day.Generally,when price is moving up;when the trend is LONG, previous resistance becomes support.When price is moving down;when the trend is SHORT, previous support becomes resistance. So,when the trend is long you should be buying at support and selling at resistance (selling to close your position at a profit).When the trend is short you should be selling at resistance and buying at support (buying to close your position at a profit).Opening a trade by selling is called 'short selling 'or 'going short the market' or 'shorting the market 'etc. So basically, as a trader you could be making money regardless of which way the market is moving.
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