Bitcoin moves first, followed by altcoins.
BiyaPay, a global one-stop asset allocation platform, reports that on September 21, Bitcoin briefly surpassed $87,000, reaching its highest level since late January this year. Following this, capital began to flow toward more elastic assets, with BCH showing significantly stronger gains and UNI rebounding near the $10 mark. On September 22, CME announced plans to launch futures contracts for Bitcoin Cash (BCH) and Uniswap (UNI) on October 19, though the final launch remains subject to regulatory review.
Several factors combined to quickly make BCH and UNI the focus of the market. The question arises: why did both tokens attract significant capital at the same time? Does this signal a renewed rally in altcoins, or is it merely a short-term spillover driven by BTC’s breakout, derivatives news, and short covering?
What signal did CME send to the market?
CME is not launching spot products this time, but rather standard futures and Micro futures. The standard BCH contract represents 250 BCH, while the Micro contract represents 25 BCH; the standard UNI contract represents 10,000 UNI, and the Micro contract represents 1,000 UNI. CME states that these products are primarily designed for price discovery, risk management, and to provide market participants with a broader range of institutional-grade trading tools.
This means that what the market is truly trading is not "how much BCH or UNI CME wants to buy," but rather that these two assets are entering a more regulated derivatives trading system. Futures allow institutions to participate through hedging, directional trading, and cross-market arbitrage, but they do not automatically generate an equivalent amount of spot buying pressure.
From this perspective, CME’s move appears to be adding a new channel for trading and risk management to the market. While institutional derivatives in the crypto market have historically focused on assets like BTC and ETH, the inclusion of more highly liquid altcoins now indicates that institutional participation in the crypto market continues to expand.
However, a boundary must also be maintained: an announced plan does not equate to an official launch, and the launch of futures does not necessarily mean increased spot demand. What truly matters to monitor going forward is whether the contract launches as scheduled, and the trading volume, open interest, and spot market performance after launch.
BCH's stronger rally this time is also related to its own market structure. Compared to BTC, BCH has a smaller market size and lower trading depth, so its price tends to be more elastic in response to major news. After CME announced plans to launch BCH futures, the market refocused on the availability of institutional trading and risk management tools, and this expectation was easily amplified in short-term price movements.
However, this does not mean that BCH’s fundamentals have fundamentally changed in the short term. Whether this price increase can be transformed into sustained momentum will depend on the actual participation after the contract goes live and whether the spot market can continue to absorb incoming capital.
UNI’s logic differs slightly. UNI is the governance token of the Uniswap ecosystem, and its price is influenced not only by overall crypto market conditions but also by factors such as DeFi activity, on-chain liquidity, protocol development, and market expectations. CME’s plan to launch UNI futures signifies that the market now has a more mature tool for price risk management, and it has also increased institutional interest in UNI trading and liquidity.
However, futures products themselves do not directly alter Uniswap protocol’s fundamentals or automatically enhance UNI’s governance value. Therefore, this rally in UNI is better understood in the context of two overlapping factors: one being the market catalyst from the CME product, and the other being the overall improvement in risk appetite following BTC’s breakout.
After BTC broke through, funds began seeking higher elasticity.
If you only look at BCH and UNI, it’s easy to assume this rally was driven by a single news event. In reality, BTC had already completed a clear upward move before altcoins began to gain momentum.
On September 21, Bitcoin intraday surged above $87,000, reaching its highest level since late January this year. During the same period, funds flowing into U.S. spot Bitcoin ETFs also showed significant improvement, with net inflows reaching approximately $999 million on September 21—the largest single-day net inflow since October 2025.
Institutional funds have also shown new activity. According to Strategy, as of September 20, the company added 950 BTC to its holdings, bringing its total position to 846,000 BTC. Based on the disclosed data, this purchase amounted to approximately $75.7 million.
Meanwhile, BTC's rapid rise was accompanied by massive short liquidations. Relevant market statistics show that at the time, short liquidations across the crypto market approached $920 million, with BTC short liquidations exceeding $550 million. Forced liquidations of short positions create additional buying pressure, which, in an already strengthening market, may further accelerate the upward momentum.
As a result, this market cycle saw a relatively clear transmission path: BTC led the rally, improving market risk appetite, prompting capital to seek out higher-risk assets; meanwhile, BCH and UNI were further boosted by catalysts related to CME futures products, amplifying their price reactions.
This is why the recent price increases of BCH and UNI cannot be fully attributed to sudden, significant changes within either project. Macroeconomic liquidity, BTC’s price movement, market positioning, and specific news all collectively influence the price.
Altcoin market activity is back— is this just a short-term surge?
It is still too early to simply define this rally as a "full return of altcoins."
More precisely, what we’re seeing now is evidence of capital flowing into higher-elasticity assets following BTC’s breakout, and the announcement of CME launching BCH and UNI futures has further increased market attention. Combined, these factors have caused some altcoins to surge significantly more than BTC.
What’s truly worth watching now isn’t how much further BCH and UNI can rise, but whether their prices can hold steady after the hype fades. If the rally has been driven primarily by short-term leverage and sentiment, then once BTC weakens again, altcoins typically experience even greater volatility.
Whether the CME contract launches on schedule is also an important point to watch. The currently announced date is October 19, but it still requires regulatory review. The true market impact will need to be validated after the product launches, through trading volume, open interest, and institutional participation.
Macro liquidity cannot be ignored either. The U.S. dollar, U.S. Treasury yields, U.S. spot Bitcoin ETF fund flows, and U.S. stock market risk appetite all influence the overall valuation environment of the cryptocurrency market. If liquidity tightens again, altcoins typically experience sharper pullbacks than BTC.
When observing cross-market trends, I use BiyaPay to simultaneously monitor changes in BTC, ETH, U.S. and Hong Kong stocks, and fiat-denominated assets, while also considering ETF fund flows, interest rates, and risk appetite to gain context. The platform uses USDT as the core entry point for funds, allowing a single account to connect digital assets, U.S. and Hong Kong equities, and fiat conversions. It also supports direct exchanges of cryptocurrencies like BTC and USDT into fiat currencies such as USD and HKD, which can be deposited into bank accounts. By viewing these diverse markets within a unified framework, it becomes easier to determine whether capital is consistently flowing into higher-elasticity assets—or whether this is merely a short-term shift following a BTC breakout.
Especially when Bitcoin, the U.S. dollar, U.S. Treasury yields, and tech stocks are all moving simultaneously, focusing on a single token can easily lead to misinterpreting macroeconomic liquidity shifts as the project’s own independent price movement. The recent rally in BCH and UNI is a typical example: it was driven not only by catalysts from CME derivative products but also by Bitcoin’s breakout, short covering, and an overall improvement in risk appetite.
Finally
So, rather than rushing to conclude that "altcoin season has returned," it's better to first observe whether the spread of capital can be sustained.
If institutional trading channels such as CME gradually improve, BTC remains relatively strong, and spot capital continues to flow into higher-elasticity assets, the altcoin market may evolve from a rapid emotional surge into a more sustained market reevaluation. Conversely, if BTC weakens again, macro liquidity tightens, or trading volume declines significantly after the news-driven catalyst fades, this rally could revert to a BTC-dominated market structure.
Currently, BCH and UNI appear to be two representative examples of this market expansion. They signal to the market that, following BTC’s rise, capital is beginning to seek higher-return trading opportunities, and institutional derivatives markets are gradually expanding their coverage to more altcoins.
Whether this marks the beginning of a new comprehensive altcoin rally still needs to be verified by time and capital flows.