Bitcoin rose 0.82 per cent in 24 hours to US$76,318.25. Ethereum gained 0.80 per cent to US$2,418.94. The total crypto market cap increased one per cent, and the broader crypto market rose 0.99 per cent. These numbers point to a single conclusion. A relief bounce tied to the Federal Reserve lifted the entire asset class.

No coin-specific catalyst appeared in the data. The primary force came from the central bank. Bitcoin slightly underperformed that broad rise even as it gained. Ethereum tracked its larger peer almost exactly. This synchronised move indicates that the market is currently driven by macro headlines rather than project-level news.

The Fed raised rates by 25 basis points on September 16 to a target range of 3.75 per cent to 4.00 per cent. Market participants had widely anticipated this unanimous decision. The confirmation removed near-term uncertainty. Risk assets responded with a modest rally. The two largest digital assets moved in lockstep with that broader tide.

Bitcoin’s 90-day correlation with gold recently hit a multi-year high. That detail matters. It shows the leading cryptocurrency now trades more like a macro asset than a speculative tech bet. Ethereum remains highly sensitive to central bank cues and Bitcoin’s direction in the short term. The move has less to do with each network’s fundamentals and more with a market-wide sigh of relief.

This is a beta trade, not a fundamental repricing. A priced-in event often produces this kind of reaction. Traders sell the rumour and buy the fact. The fact here was a rate hike that no longer surprised anyone. The market had already absorbed the news before the Fed spoke, so the actual announcement simply cleared the air.

Supporting data in derivatives markets adds nuance. Bitcoin open interest fell 3.1 per cent. Liquidations dropped 65.79 per cent. That decline in forced selling suggests a calmer backdrop. Bitcoin dominance stayed elevated near 58.85 per cent. Capital has not rotated aggressively into riskier altcoins.

Instead, it remains defensive. Ethereum told a slightly different story. Average perpetual funding rates rose 40.74 per cent over 24 hours to +0.0053 per cent. Some derivatives traders leaned cautiously bullish. The absolute rate stayed far from extreme levels. Ethereum also benefited from its place in the Layer 1 narrative, which posted a 0.99 per cent sector gain.

Risk capital is rotating toward large-cap blockchain platforms, but it is doing so selectively. Bitcoin still leads. Ethereum follows. That relationship defines the current market structure. The lack of a leverage washout and the sustained dominance of the largest asset create a stable floor, but they also limit upside momentum. When capital stays defensive, rallies tend to be measured and shallow rather than explosive.

Institutional flows provide the most important test. U.S. spot Bitcoin ETFs recorded US$450 million in outflows on September 15. That figure shows hesitation among institutional investors. A return to net inflows would confirm renewed demand. Until then, price stability rests more on reduced selling pressure than on a fresh wave of buying.

Ethereum faces a similar question. The daily ETF flow report will show whether spot Ethereum ETF flows turn positive in the next 24 to 48 hours. Positive flows would confirm a return of institutional interest. Sustained outflows could pressure the support zone. The bounce then looks technical rather than durable.

This flow data matters more than any single derivative metric because it reflects real capital allocation from large investors. Without that capital, the rally depends on short-term traders and macro sentiment. That foundation is thin and can crack quickly if the next data release or policy comment shifts the mood.

Technical levels define the near-term battlefield. Bitcoin trades just above the US$75,000 support level, which has held for weeks. If the largest asset holds above US$75,000, a retest of US$78,189 resistance becomes possible. A break below US$75,000 would shift focus to the next support near US$74,000.

Ethereum consolidates between support at US$2,350-US$2,400 and resistance at US$2,500-US$2,600. Its 4-hour RSI sits at 53.17, a neutral reading. A daily close above US$2,500 would signal a breakout attempt. A break below US$2,350 would risk a deeper correction toward US$2,200.

The market is in a wait-and-see mode. It balances relief from the Fed against lingering regulatory uncertainty from the failed CLARITY Act. That legislative setback removed a potential positive catalyst and left the market without a clear regulatory path forward. Without that path, institutional investors may continue to hesitate, and that hesitation shows up in ETF flows.

In my view, the synchronised price action tells a story of a market where macro forces set the tone but internal dynamism remains weak. The Fed-induced relief rally is welcome. It is also fragile. It is a pause, not a pivot.

The path forward depends on two developments. One is that ETF flows must reverse from negative to positive. That shift would provide fresh institutional demand. The other is that both assets need convincing technical breaks above resistance. Bitcoin must reclaim and hold above US$78,189. Ethereum must close above US$2,500. Without those confirmations, the crypto complex remains vulnerable to the next macro shock or regulatory headline.

The high correlation with gold and Bitcoin’s persistent dominance show that capital seeks the safest harbours within the asset class during uncertainty. Until capital rotates more clearly into Ethereum and beyond, the recovery remains a beta-chasing exercise rather than a genuine broad-based bull market.

The next 24 to 48 hours of ETF flow data will offer the primary real test of whether this relief rally has legs. I would watch the US$75,000 level for Bitcoin and the US$2,350 level for Ethereum as the lines that separate consolidation from correction. I would also watch funding rates for signs of overheating. A sharp reversal there could trigger a squeeze and undermine the calm that currently supports prices. For now, the market has bought itself time, but it has not earned a new trend.