"I think that this is going to be the most contentious debt ceiling debate in memory," Winograd said. "It would suggest that there's some type of premium being allocated to bills in that space where the risk of the debt ceiling starts to grow," Norris said. Some investors also believe lawmakers will be able to reach a deal on raising the debt ceiling without severely unsettling markets. Edward Al Hussainy, senior interest rate and currency analyst at Columbia Threadneedle, thinks any debt ceiling tensions would eventually be resolved, calling the issue "a well rehearsed storyline." However, the heightened concerns about the debt ceiling are "an extra little justification on top" for the firm's positioning, Pride said.

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