After failing to breach $6,000, bitcoin prices have again taken a downturn.

At press time, the bitcoin-U.S. dollar (BTC/USD) exchange rate is $5,850, but of greater interest to traders is what this means for the ongoing rally, which has pushed bitcoin up from an Oct. 25 low of $5,376.

Prices on the CoinDesk Bitcoin Price Index (BPI) have twice neared the $6,000 mark in the last 24 hours, yet both attempts have stalled.

The first attempt ran out of steam at $5,978 yesterday at 13:00 UTC, while a second fell apart at 01:00 UTC today.

As of writing, the BPI is down 0.90 percent at $5,834.

While the reasons for the exhaustion are unknown, it may simply be the case of the formation of a new psychological level, with traders unsure of whether higher prices above $6,000 will hold.

Whatever the reason, the price action analysis calls for vigilance.

The above chart shows:

Exhaustion near $6,000 adds credence to the bearish price-MFI divergence and indicates potential for a drop below the 5-day MA of $5,786.

A break below $5,786 would validate the bearish 5-day MA and 10-day MA crossover and could open doors for a drop to head-and-shoulders neckline (red line) support of $5,440.

The rising trend line (blue dotted line) is also likely to offer support around $5,440 levels.

As per CoinMarketCap, total bitcoin trading volume dropped 28 percent on Wednesday, and decreased by another 3 percent on Thursday.

This further suggests the rally from $5,376 lacked substance (weak volumes), thus the exhaustion near $6,000 is perhaps to be expected.

Looking ahead to today:

Tired runner image via Shutterstock