No, Buffett is often misunderstood. In his earlier days he did a lot of trading and with a lot of smaller stocks. He can't do that now because he has too much money for small stocks.
He made his first millions, not so much by investing his money, but by investing for others through small partnerships, where he got a percentage of profits on other peoples money.
You cannot achieve his success with his investments because you can't buy much of what he buys. In addition to stocks, he buys whole companies, hard to get foreign companies, undisclosed bonds, commodities, and he gets special deals (Goldman Sachs, GE, etc).
Also, he leverages his investments by using interest free float, provided from his insurance companies.
To understand more, read his letters to shareholders in Berkshire Hathaway's annual reports.