You can decide to buy or sell at a specific price or better. Your broker will try to get the best price possible, but cannot sell below or buy above your specified price. Orders are queued in order of entry, with no priority or preference given to large buyers or institutions. When the share price reaches the level of your bid, it will automatically be accepted and the transaction recorded electronically. NZSE Members will be able to provide you with other sources of information such as books and newspaper articles.
Most firms also produce regular newsletters for their clients.