CANSLIM系統-尋找成長股
- C：當季盈餘成長率至少18~20%(Current quarterly earning per share must be up at least 18~20%)。
- A：過去五年盈餘顯著成長，複合成長率15~50%或以上(Annual earning per share should be meaningful growth over the last five years, the annual compounded growth rate of earnings in the superior firms should be from 15% to 50%, or even more per year)。
- N：新產品、新管理階層或股價創新高，忘記低價股，股價低通常有其理由存在(Buy companies with new products, new management, or significant new changes in their industry conditions, and most important, buy stocks as they initially make new highs in price. Forget cheap stocks—they are usually cheap for a good reason)。
- S：流通在外股數少或是在合理水準之內(Shares outstanding should be small or of reasonable number, not large capitalization, older companies)。
- L：市場的領導者或落後者，應挑選(Leader or Laggard：the 500 best performing stocks from 1953 to 1990 averaged a relative price strength of 87)。
- I：專業投資機構的認同(Institutional sponsorship：Buy stocks with at least a few institutional sponsors with better than average recent performance records)。
- M：市場走向(Market Direction)。
威廉．歐尼爾認為不需理會價值，因為股票市場上，永遠是一分錢一分貨；你支付什麼價格，就買到什麼樣的貨色。
投資自動化程序
- 橫向區間整理-股票金過一段橫向整理而創新高價，應該在此樞紐點買進
- 從買點起算，股價如果下跌8%，就應該認賠
- 股價如果上漲，在漲幅達5%之前，可以考慮加碼買進。如超過5%就不該買進
- 股價漲幅達到20%，應該賣出
- 如果股價不到8星期之內已上漲20%，則應該繼續持有至滿8個星期為止。到期限之後，評估是否會繼續上漲
- 歐尼爾也採用 金字塔式的投資方式
投資火力應該集中，分批進、出場，追蹤贏家