Updated from 2:11 p.m. ET, Tuesday, Aug. 8. 

The Dow Jones Industrial Average's record-making streak came under threat in the final hour of trading on Tuesday, Aug. 8.

The Dow was down 0.04% after hitting a new intraday record of 22,179.11. The Dow had previously been on track to close at a record for the 10th session in a row. The S&P 500 fell 0.05%, retreating from its record close set a day earlier. The Nasdaq gained 0.15%.

The Dow ended Monday, Aug. 7, with tiny gains that still pushed it to its ninth closing record in a row. The Dow was up 0.12%, securing a new record close of 22,118 on Monday. Like Monday, any gain on Tuesday will push the blue-chip index to records, potentially for the 10th day in a row.

At the beginning of its record run, the Dow managed to secure new records on the back of positive earnings from the likes of Apple, Boeing Co. (BA) and Caterpillar Inc. (CAT) . Small gains and general upward momentum have kept the record-breaking streak alive since then but with little energy.

"Beyond the double-digit gains in stocks this year and all of the all-time highs (29 for the S&P 500 Index already this year), perhaps the biggest story for the S&P 500 in 2017 is the absence of pullbacks," said Burt White, chief investment officer for LPL Financial. White noted that it has been 187 days since the S&P 500 has seen a pullback of 3% and 279 days since one as steep as 5%. He warned that changes in central bank policy, developments in Washington, and rising geopolitical tensions could snap this streak. 

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