Investing.com -- In just over 24 hours, Kevin Warsh's Fed will announce its interest rate decision. While the consensus is for the Fed to remain on hold, a growing number of market watchers expect a surprise rate hike. Citadel Securities is one of those outliers, with the firm's head of macro strategy Frank Flight expecting a 25-basis-point hike. Overall, 32% of market participants expect a hike tomorrow. In other words, once a tightening cycle begins, the Fed rarely stops at one move.