Solana (SOL) is trading in a tight range, with buyers defending the $100 psychological level ahead of the Federal Reserve's interest-rate decision. The broader crypto market remains under pressure as expectations for a September rate hike have climbed to 70%, according to CME Group's FedWatch tool, up from a recent low of 50%.

Higher interest rates typically weigh on risk assets like cryptocurrencies by tightening financial conditions and making yield-bearing traditional investments more attractive. The US Treasury's decision to triple its bond buybacks has done little to improve sentiment, leaving digital assets vulnerable to further downside.

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Despite the macro headwinds, on-chain activity on the Solana network has been steadily increasing since mid-August, according to Santiment data. This uptick followed the release of new cryptocurrency industry rules by the US Securities and Exchange Commission, which may have encouraged users to engage more with the ecosystem. Growing daily active users can signal stronger demand for decentralized applications and other on-chain services, though it does not guarantee a price rally.

Technical indicators suggest that volatility could be on the horizon. The 30-day and 50-day moving averages of Solana's daily active-address metric are approaching a crossover. Historically, the previous five such crossovers have been followed by substantial price movements in either direction, indicating that a significant move may be imminent.

Solana's market structure remains bullish after breaking above its 200-day exponential moving average, which could give buyers an advantage if activity continues to climb. However, a more hawkish-than-expected message from the Fed could invalidate this setup and trigger a sharp decline.

On the daily chart, SOL has slipped slightly below the $100 level, but the repeated defense of this area suggests some investors are accumulating in anticipation of another upward move. Reclaiming $100 would reinforce the near-term bullish structure and improve the odds of testing higher resistance levels. The Relative Strength Index has fallen below 60, indicating that bullish momentum is moderating but not yet decisively bearish.

If market liquidity weakens, Solana could retest the $90 support zone before resuming its broader uptrend. This region is significant because it aligns with the 200-day EMA and a previous resistance-turned-support area, making it a potential battleground for buyers during a deeper correction. A decisive breakdown below $90 would weaken the bullish thesis and open the door to further losses.

Should Solana hold its key support levels and regain upward momentum, the short-term target of $120 remains achievable, representing potential upside of approximately 20% from the $100 area. For context, ETF inflows and rising on-chain activity have been cited as supportive factors in recent weeks.

Investors are also watching broader market dynamics, including gold slipping as Fed hike odds climb, which reflects the risk-off sentiment across asset classes. Meanwhile, rising oil prices and Treasury yields have added to the pressure on cryptocurrencies.

As the Fed decision approaches, Solana's price action will likely hinge on the central bank's tone and the market's reaction. Traders should monitor the $90 and $100 levels closely, as a break in either direction could set the stage for the next major move.

This article is for informational purposes only and does not constitute financial advice.