The bitcoin price touched $11,000 early this morning but just didn’t have enough strength to keep going, and now it’s holding stubbornly below that level. Worries about the cryptocurrency’s popularity are starting to spread with the realization that the bitcoin trading volume is down dramatically from where it once was. Meanwhile, reports that the Securities and Exchange Commission is doling out subpoenas in an investigation of initial coin offerings are only worsening the market’s crypto anxieties.

Most crypto fans follow the bitcoin price, or the dollar value of each token, but another metric that’s gaining attention is the bitcoin trading volume. It doesn’t seem like much of a surprise that the bitcoin trading volume fell along with its price early this year.

However, market observers are now noticing that even though the bitcoin price has rallied 50% since early February, the number of transactions carried out in the cryptocurrency has not recovered. In fact, the average daily bitcoin trading volume is about half of where it was in December, according to data from Blockchain.info—down to approximately 200,000 from nearly 400,000 in the middle of December.

Bloomberg also notes that the number of bitcoin transactions that are pending or waiting for the network’s official recognition is down to approximately 35 million bytes per week. At the beginning of the year, the bitcoin network had about 130 million bytes of transactions pending in a week. The amount of time it takes to process bitcoin transactions has also plunged, the media outlet adds.

Ironically, the amount of time it was taking to complete transactions on the bitcoin network has been one reason critics have argued against it ever becoming a standard for processing payments. In response to those concerns, cryptocurrency exchange Coinbase activated what’s called the SegWit protocol in order to reduce processing times. As a result, it’s unclear how much of the decline in times is due to new enhancements, and how much is due to plunging bitcoin trading volumes.