When one trades aggressively over an intermediate time frame using much margin, it's very important NOT to be 200% long at the start of a correction. Corrections in a bull market are scary & fast & one can lose a lot of the profits one made over a long period of grinding higher in just a few days.
So when that bearish CPI number came out, my assessment of the risk of a real correction went way up. Hence, I'm off margin (aka "butter" from the humorous brokerage commercial). I used the S&P futures short to offset the margin temporarily, while I sold individual stocks as the market rallied during the day. That worked well and I covered the short today for a small profit.