Wall Street’s quiet corner is making noise again. While the bond market is typically seen as slower moving, it can pack a heavy punch when it’s alarmed. And right now, it’s getting worried about how much more Washington is preparing to pile onto its spiraling mountain of debt because of its desire to cut taxes.

Eastern time, the S&P 500 rose 0.1%, the Dow Jones Industrial Average was up 0.1%, and the Nasdaq Composite was 0.5% higher.

Wall Street's main indexes opened lower on Wednesday, as investors awaited the outcome of a pivotal debate around U.S. President Donald Trump's tax-cut bill that has fanned concerns about the country's growing debt.