NEW YORK (AP) — The “miners” who chisel bitcoins out of complex mathematics are taking a 50% pay cut — effectively reducing new production of the world’s largest cryptocurrency, again.
Bitcoin's latest “halving" occurred Friday night. Soon after the highly anticipated event, the price of bitcoin held steady at about $63,907.
Now, all eyes are on what will happen down the road. Beyond bitcoin’s long-term price behavior, which relies heavily on other market conditions, experts point to potential impacts on the day-to-day operations of the asset’s miners themselves. But, as with everything in the volatile cryptoverse, the future is hard to predict.
Here’s what you need to know.
Bitcoin “halving,” a preprogrammed event that occurs roughly every four years, impacts the production of bitcoin. Miners use farms of noisy, specialized computers to solve convoluted math puzzles; and when they complete one, they get a fixed number of bitcoins as a reward.
Halving does exactly what it sounds like — it cuts that fixed income in half. And when the mining reward falls, so does the number of new bitcoins entering the market. That means the supply of coins available to satisfy demand grows more slowly.
Limited supply is one of bitcoin’s key features. Only 21 million bitcoins will ever exist, and more than 19.5 million of them have already been mined, leaving fewer than 1.5 million left to pull from.
So long as demand remains the same or climbs faster than supply, bitcoin prices should rise as halving limits output. Because of this, some argue that bitcoin can counteract inflation — still, experts stress that future gains are never guaranteed.
Per bitcoin’s code, halving occurs after the creation of every 210,000 “blocks” — where transactions are recorded — during the mining process.
No calendar dates are set in stone, but that divvies out to roughly once every four years.
Only time will tell. Following each of the three previous halvings, the price of bitcoin was mixed in the first few months and wound up significantly higher one year later. But as investors well know, past performance is not an indicator of future results.
“I don’t know how significant we can say halving is just yet,” said Adam Morgan McCarthy, a research analyst at Kaiko. “The sample size of three (previous halvings) isn’t big enough to say ‘It’s going to go up 500% again,’ or something.”
At the time of the last halving in May 2020, for example, bitcoin’s price stood at around $8,602, according to CoinMarketCap — and climbed almost seven-fold to nearly $56,705 by May 2021. Bitcoin prices nearly quadrupled a year after July 2016’s halving and shot up by almost 80 times one year out from bitcoin’s first halving in November 2012. Experts like McCarthy stress that other bullish market conditions contributed to those returns.
Friday's halving also arrives after a year of steep increases for bitcoin. As of Friday night, bitcoin’s price stood at $63,907 per CoinMarketCap. That’s down from the all-time-high of about $73,750 hit last month, but still double the asset’s price from a year ago.
Much of the credit for bitcoin’s recent rally is given to the early success of a new way to invest in the asset — spot bitcoin ETFs, which were only approved by U.S. regulators in January. A research report from crypto fund manager Bitwise found that these spot ETFs, short for exchange-traded funds, saw $12.1 billion in inflows during the first quarter.
Bitwise senior crypto research analyst Ryan Rasmussen said persistent or growing ETF demand, when paired with the “supply shock” resulting from the coming halving, could help propel bitcoin’s price further.
“We would expect the price of Bitcoin to have a strong performance over the next 12 months,” he said. Rasmussen notes that he’s seen some predict gains reaching as high as $400,000, but the more “consensus estimate” is closer to the $100,000-$175,000 range.
Other experts stress caution, pointing to the possibility the gains have already been realized.
In a Wednesday research note, JPMorgan analysts maintained that they don’t expect to see post-halving price increases because the event “has already been already priced in” — noting that the market is still in overbought conditions per their analysis of bitcoin futures.
Miners, meanwhile, will be challenged with compensating for the reduction in rewards while also keeping operating costs down.
“Even if there’s a slight increase in bitcoin price, (halving) can really impact a miner’s ability to pay bills,” Andrew W. Balthazor, a Miami-based attorney who specializes in digital assets at Holland & Knight, said. “You can’t assume that bitcoin is just going to go to the moon. As your business model, you have to plan for extreme volatility.”
Better-prepared miners have likely laid the groundwork ahead of time, perhaps by increasing energy efficiency or raising new capital. But cracks may arise for less-efficient, struggling firms.
One likely outcome: Consolidation. That’s become increasingly common in the bitcoin mining industry, particularly following a major crypto crash in 2022.
In its recent research report, Bitwise found that total miner revenue slumped one month after each of the three previous halvings. But those figures had rebounded significantly after a full year — thanks to spikes in the price of bitcoin as well as larger miners expanding their operations.
Time will tell how mining companies fare following this latest halving. But Rasmussen is betting that big players will continue to expand and utilize the industry’s technology advances to make operations more efficient.
Pinpointing definitive data on the environmental impacts directly tied to bitcoin halving is still a bit of a question mark. But it’s no secret that crypto mining consumes a lot of energy overall — and operations relying on pollutive sources have drawn particular concern over the years.
Recent research published by the United Nations University and Earth’s Future journal found that the carbon footprint of 2020-2021 bitcoin mining across 76 nations was equivalent to emissions of burning 84 billion pounds of coal or running 190 natural gas-fired power plants. Coal satisfied the bulk of bitcoin’s electricity demands (45%), followed by natural gas (21%) and hydropower (16%).
Environmental impacts of bitcoin mining boil largely down to the energy source used. Industry analysts have maintained that pushes towards the use of more clean energy have increased in recent years, coinciding with rising calls for climate protections from regulators around the world.
Production pressures could result in miners looking to cut costs. Ahead of the latest halving, JPMorgan cautioned that some bitcoin mining firms may “look to diversify into low energy cost regions” to deploy inefficient mining rigs.
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