I have begun swing trading intraday the last three months using highly volatile intraday stocks (+-3% above/below the previous day's high/low) and trading the stock above/below the 15-min swing high/low. However, I have noticed a trend that taking trades where the swing high/low is within 10-15 cents of the whole dollar aren't always as successful. Furthermore, the swing trades where the swing high/low is within 20-30 cents of the whole $10 dollar mark (ie $30,$40, etc.) usually don't pan out either. Has anyone else experienced a similar phenomenon? Does anybody have an explanation?