The April data for NYSE Margin Debt definitely raised more than a few red flags for investors. We now have had the first 2-month consecutive drop since September 2011. Of course, the most significant difference between March and April of this year and August and September of 2011 is that the S&P 500 was actually nearly 30 points higher in March and April. In August/September 2011, the S&P 500 had already declined by about 170 points by the end of September.