What happened?
The U.S. central bank (the Fed) raised its benchmark rate on Wednesday for the first time since July 2023. According to The Defiant, the vote was unanimous and the committee's own projections now point to one more hike. The crypto market reacted differently than many would have expected: instead of falling, it stayed green.
CoinDesk reports that Bitcoin rose 0.88% over 24 hours to $76,621. The Defiant describes the move as a "round-trip," meaning BTC passed through the Fed decision essentially unchanged and returned close to its starting level.
The second event of the day was that, according to Decrypt, the Clarity Act, a bill aimed at establishing a regulatory framework for crypto assets, did not pass in Congress. Neither of these two pieces of news, the tightening of monetary policy nor the legislative failure, dragged the market down.
Why did Zcash rally?
The most notable move among the larger altcoins was Zcash. CoinDesk reports a 23% jump to a record high after investment firm Paradigm disclosed its stake. The Defiant cites a price of $1,383.
What exactly caused this particular move is not clearly proven from the available sources. The timing coinciding with Paradigm's stake disclosure is documented, but the direct causal link of "the announcement triggered the rally" is not stated as confirmed by the sources.
What does on-chain data say about demand?
Behind the price stability, however, lie signals of weakening demand. According to CryptoSlate, as of September 17 two indicators emerged that are worth watching:
| Indicator | Status per CryptoSlate |
|---|---|
| Realized Cap | first daily decline in 28 days |
| U.S. spot Bitcoin ETFs | second consecutive day of net outflows |
Realized Cap (realized market capitalization) is a metric that values each coin at the price at which it last moved on-chain, rather than at the current market price. Its decline suggests that less new capital is flowing into the network.
CryptoSlate further references Glassnode's analysis and the so-called True Market Mean at $76,700, a reference cost-basis value in the Glassnode model. According to CryptoSlate's data, Bitcoin was trading near $76,458, just below that level. Holding close to it is, per CryptoSlate, limiting price damage for now, but the demand indicators mentioned do not confirm a renewed rally. The source cites $71,300 as a risk level below.
What to take away from this?
The main storyline of the day: neither the tightening of monetary policy nor the failure of the Clarity Act knocked down the prices of major crypto assets in the short term. That is a fact that can be documented. Why exactly the market reacted resiliently is a matter of interpretation. One possible explanation, offered by CoinDesk, is that the Fed's projections imply just one more hike, so the market may have viewed the tightening cycle as nearing its end. But that is a probable line of reasoning, not a proven cause.
What is worth watching in this type of situation: whether Bitcoin ETF outflows stop or deepen, and whether Realized Cap returns to growth. The contradiction between green prices and weakening demand is exactly the kind of tension that can later be assessed in hindsight.

