Solana Hits 7-Month High Above $110 as SOL Open Interest Jumps

Solana reached a seven-month high above $110 on September 18, 2026, with SOL climbing 10.75% to $112.28 as traders piled into derivatives and listed-product inflows continued to accumulate. Live data from CoinGecko placed SOL at $112.91 with a 24-hour gain of roughly 11.5%, extending the move.

SOL Crosses $110 for the First Time in Seven Months

The $110 level had acted as a ceiling for Solana since early 2026, making the September 18 close above it the first in seven months. The reported 10.75% single-day gain to $112.28 is a structural shift in the range rather than an intraday spike, given that live prices confirmed the move held into the following session. SOL’s market capitalization crossed $66.3 billion on the back of that move, with 24-hour spot volume reaching approximately $6.57 billion.

The broader crypto market was registering a Fear & Greed Index score of 56, classified as Greed, at the time of publication. That reading places sentiment in risk-on territory without yet approaching the extreme-greed zone that has historically preceded short-term reversals. The broader crypto rally that preceded this move was attributed in part to shifting U.S. macro conditions, though no primary regulatory filing was reviewed to independently verify that attribution.

Open Interest Climbs 18% as Traders Add SOL Exposure

Open interest measures the total value of outstanding derivatives contracts that have not been settled. When open interest rises alongside price, it indicates that new capital is entering the market to support the directional move rather than short positions being closed. According to CoinGape’s September 18 report, SOL futures open interest rose 18.44% to $7.01 billion, while derivatives volume surged 71.64% to $12.17 billion over the same window. For related coverage, see Nostra Finance Money Market Reportedly Hit by Price Manipulation Attack.

A live snapshot from CoinGlass showed SOL open interest at $6.97 billion, slightly below the $7.01 billion figure cited in the CoinGape report. The modest gap reflects the difference between the article’s measurement timestamp and a later live reading rather than a data discrepancy. Rising open interest paired with a 71.64% volume surge indicates active two-way positioning, not a thin or short-squeeze-driven move, though rising open interest alone is not conclusive evidence that the price advance will be sustained. The SOL derivatives complex is also expanding in absolute terms; Solana’s on-chain TVL has been growing alongside its derivatives footprint, a combination that signals deepening liquidity across both spot and synthetic exposure.

ETF Assets Add a Second Demand Signal for Solana

Separate from the derivatives move, listed-product demand has been accumulating steadily. CoinGape’s report cited $1.42 billion in Solana ETF assets as of September 17, though that figure could not be independently verified because the primary ETF-assets data provider returned an access error. The directly observable measure is cumulative net flows: Farside Investors’ Solana ETF flow table showed an all-period total of $1.363 billion in cumulative net inflows, with $0.0 million of net daily flow on September 17 itself. For related coverage, see Hyperliquid Adds Manual Borrows to Portfolio Margin.

Cumulative net flows and assets under management are related but distinct: AUM reflects current market value of holdings, while net flows track the dollar amount that moved in or out of the product over time. The $1.363 billion cumulative flow base means that, even on a flat-flow day like September 17, existing capital in Solana listed products was appreciating in line with the spot price. That dynamic reinforces the derivatives open-interest signal: both on-exchange and listed-vehicle exposure to SOL were growing simultaneously, reducing the likelihood that the price move was driven by a narrow cohort. The expansion of Solana’s transaction capacity for more complex trades adds a protocol-level dimension to the demand narrative, as institutional-grade strategies require higher throughput to execute efficiently.

Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.