The first Solana [SOL] staking ETF in the US, SSK under REXShares, just recorded its strongest day on record.

According to a recent SolanaFloor report, the product attracted $13 million in new capital inflows in the past 24 hours, with trading volume surging to $66 million—its highest level since launch.

The sharp increase in demand indicates that investor interest in investing in Solana through regulated investment products is accelerating.

Previously, SOL rose 33% from a key technical support zone.

Later last week, the token rebounded from the golden Fibonacci retracement zone—historically, this level triggered strong follow-up rebounds in the previous SOL bullish cycle.

Solana Institutional Interests Meet Whale Accumulation

On-chain data shows that whales are actively accumulating positions, and the rising whale ratio on exchanges (an indicator tracking the share of large traders) reflects this.

This growth coincides with strong ETF inflows, indicating that major participants may be coordinating efforts in preparation for a potential breakout.

Historically, when whale activity aligns with ETF demand, Solana's price tends to surge dramatically.

As of the time of writing, SOL-related inflows account for nearly 20% of SSK's total assets under management. This highlights strong institutional investor interest, likely to drive continued upward momentum.

Optimistic sentiment converges

In addition to ETF activity, overall sentiment around Layer-1 networks has improved over the past week. Risk appetite in the altcoin market is rising, and the number of daily active addresses for Solana is also increasing.

AMBCrypto analysis indicates a surge in both the 7-day moving average and the number of monthly active addresses.

This confirms the aforementioned bullish indicators and increases the likelihood of a rise to $250 in the near future.

Solana investors need to remain cautious. The price action of SOL shows a significant resistance zone below $206, and profit-taking may temporarily suppress upward momentum.

However, if ETF inflows maintain this pace and whales continue to accumulate, the price may soon break through $250.