ETC’s “Fifthening” Mechanism and Monetary Policy
As a major player in the cryptocurrency space, Ethereum Classic (ETC) has a monetary policy that shares similarities with Bitcoin’s but also has its own unique characteristics.Rather than adopting Bitcoin’s “halving” mechanism (where block rewards are directly reduced by 50%), ETC controls its token supply through a mechanism known as “Fifthening.” Under ETC’s “5M20” monetary policy, the block reward is reduced by 20% every 5 million blocks.This mechanism is designed to introduce predictable scarcity, effectively control inflation, and ultimately cap ETC’s total supply at approximately 210.7 million tokens—a concept similar to Bitcoin’s fixed supply model.
A Look Back at Historical and Recent Halving Events
ETC was created as a result of a hard fork following the Ethereum DAO attack in July 2016.It adheres to the principle of “code is law,” retaining the original, unmodified ledger and continuing to use the Proof-of-Work (PoW) consensus mechanism—a stark contrast to Ethereum’s shift to Proof-of-Stake (PoS) in 2022.
- Historical Block Reward Changes:
- December 2017 (Era 2): Block reward was 4 ETC.
- March 2020 (Epoch 3): The block reward decreased to 3.2 ETC.
- April 2022 (Epoch 4): The block reward decreased to 2.56 ETC.
- Most Recent Halving (Fifth Halving): Occurred around May 30 to June 11, 2024, at block height 20,000,001.This halving reduced the block reward from 2.56 ETC to 2.048 ETC, and the inflation rate dropped from approximately 4.26% to 3.41%.
- Upcoming halving event (6th halving): Expected around July 22–23, 2026, at block height 25,000,001. At that time, the block reward will be further reduced from 2.048 ETC to 1.6384 ETC.
Impact of Halving on the Market and Miners
ETC halving events have a significant impact on both miners and market investors.
- Impact on Miners: The halving directly results in a 20% reduction in miners’ block reward income, which may affect their profitability, particularly for small-scale miners or those with high electricity costs.However, large mining pools such as F2pool believe that most mainstream mining rigs will remain profitable after the halving, so the overall impact on the network’s hash rate is likely to be limited. In the long term, however, declining miner revenues may also trigger issues of network centralization, affecting the network’s level of decentralization.
- Impact on the Market and Investors: ETC’s “Fifthening” mechanism is viewed as a signal of its long-term scarcity, which influences investor sentiment.Historical data shows that halving events do not necessarily lead to immediate sharp price increases; factors such as market demand, liquidity, and overall market trends are more significant. For example, around the time of the May 2024 halving, the ETC price hovered around $30 but fell to approximately $23 by the end of June.In contrast, prior to the March 2020 halving, the ETC price rose from $3.40 to a high of $13.20—an increase of nearly 300%. This illustrates the complexity of the market’s reaction to halvings.
ETC’s Unique Position and Market Performance
ETC adheres to its “code is law” philosophy and has established an immutable monetary policy through the ECIP-1017 proposal, which maintains its unique position within the cryptocurrency ecosystem. Its fixed supply model makes its monetary policy more akin to Bitcoin’s, in contrast to Ethereum’s unlimited supply.ETC’s Spiral hard fork (January 2024) was designed to ensure compatibility with Ethereum and incorporated most of the Shanghai upgrade (excluding PoS-related EIPs).
As of October 7, 2026, ETC’s real-time price was approximately $8.46, with a 24-hour trading volume of about $48.55 million and a market capitalization of approximately $1.34 billion, ranking 55th on CoinMarketCap. The circulating supply is approximately 158.6 million ETC.
ETC Trading Channels
As one of the mainstream cryptocurrencies, ETC can be traded on multiple exchanges. Users can buy and sell ETC on exchanges that support it. Currently, platforms such as Binance, OKX, Bybit, HTX, and Poloniex all support ETC trading.
The information regarding available trading platforms in this article is subject to change based on each exchange’s listing and delisting activities; please refer to the exchanges’ official announcements for the most up-to-date information.
