{"id":32725,"date":"2026-09-23T13:01:54","date_gmt":"2026-09-23T12:01:54","guid":{"rendered":"https:\/\/investx.fr\/en\/2026\/09\/23\/solana-alpenglow-testnet-sol-price-150\/"},"modified":"2026-09-23T13:01:59","modified_gmt":"2026-09-23T12:01:59","slug":"solana-alpenglow-testnet-sol-price-150","status":"publish","type":"post","link":"https:\/\/investx.fr\/en\/crypto-news\/solana-alpenglow-testnet-sol-price-150\/","title":{"rendered":"Solana Tests Alpenglow: The Upgrade That Could Push SOL to $150"},"content":{"rendered":"\n

Solana<\/strong> is hitting a major technical milestone with the deployment of Alpenglow on its public testnet<\/strong> \u2014 an upgrade that promises to slash transaction finality from 13 seconds down to just 0.15 seconds. Meanwhile, Solana ETFs<\/strong> continue to record significant net inflows, and the price of SOL<\/strong> is closing in on a critical resistance zone.<\/p>\n\n\n\n

Could a technical catalyst of this magnitude, combined with growing institutional demand, be enough to clear the path toward $150<\/strong>? The next few weeks will be decisive.<\/p>\n\n\n\n

Alpenglow on testnet: what this upgrade really changes<\/h2>\n\n\n\n

Developers at Anza<\/strong> have officially pushed Alpenglow to Solana’s public testnet<\/strong>, marking the first large-scale testing phase of what is the deepest protocol overhaul in years. The core objective: replace the TowerBFT<\/strong> consensus mechanism with a new voting protocol called Votor<\/strong>, capable of bringing transaction finality down from approximately 13 seconds to 0.15 seconds<\/strong>.<\/p>\n\n\n\n

Validators running Agave 4.3<\/strong> can now test the migration on a live copy of the network without putting real funds at risk. This phase follows more than four months of testing in a dedicated environment. Anza<\/strong> confirmed the progress via its feature-gate tracker, with mainnet activation expected around September 28<\/strong>. The window is tight, and the market is already beginning to price it in.<\/p>\n\n\n\n

This is more than a performance improvement: near-instant finality opens the door to use cases that were previously impossible on Solana<\/strong> \u2014 real-time payments, on-chain high-frequency trading, and autonomous AI agents<\/a> requiring immediate confirmation. The 23.2 million AI agent transactions<\/strong> recorded over the past four weeks already illustrate the application layer’s appetite for exactly this kind of capability.<\/p>\n\n\n\n

Solana ETFs, institutional flows, and price action: the full picture<\/h2>\n\n\n\n
\"SOL\/USDT<\/figure>\n\n\n\n

On the institutional side, spot Solana ETFs<\/strong> captured $26.1 million in net inflows on September 21<\/strong>, bringing tracked cumulative flows to $1.44 billion<\/strong>. This dynamic is part of a run of 12 consecutive weeks of positive weekly inflows<\/strong> \u2014 a structural signal that goes well beyond simple speculative momentum.<\/p>\n\n\n\n

On the price front, SOL<\/strong> is trading around $117<\/strong> and testing the lower boundary of a resistance zone between $116 and $123.35<\/strong>. A decisive break above this range would open the way toward $137.65<\/strong>, then $144.76<\/strong>. The four-hour RSI<\/strong> is flirting with 71<\/strong>: the momentum is real, but this level also signals a market that is starting to stretch \u2014 a pullback would not be surprising at this stage.<\/p>\n\n\n\n

Key support levels to watch sit at $114.67<\/strong> as the first line of defense, with a deeper floor around $106.95<\/strong> in the event of a sentiment reversal. Buy walls have been identified at $123<\/strong> and $132<\/strong> \u2014 if both levels break with volume, $150<\/strong> becomes the next consensus target. Conversely, a rejection between $120 and $123 would bring the price back to retest $114.67, pushing the bullish scenario further out.<\/p>\n\n\n\n

The September 28 scenario: catalyst or false start?<\/h2>\n\n\n\n

The market’s base case is relatively straightforward: SOL<\/strong> grinds against resistance ahead of the Alpenglow<\/strong> mainnet activation on September 28<\/strong>, then uses that event as the trigger for a breakout. This kind of dynamic \u2014 pre-event accumulation followed by a post-activation surge \u2014 is a well-known pattern in the crypto<\/a> ecosystem, but it is never guaranteed.<\/p>\n\n\n\n

The key variable remains volume<\/strong>. A break above $123 on thin volume would be unconvincing and vulnerable to a swift reversal. On the other hand, a breakout backed by significant volume, in a context where ETFs<\/strong> continue to absorb supply, would change the picture entirely. SOL<\/strong> has gained +22.57% over seven days<\/strong> \u2014 late buyers are entering an asset that is already well-valued relative to its recent floor below $100.<\/p>\n\n\n\n

The Alpenglow<\/strong> upgrade is technically sound and potentially transformative for Solana adoption<\/a>. But between a genuine protocol improvement and a sustained price move, there is always the question of timing, liquidity, and the macro backdrop. September 28<\/strong> is a date worth watching closely.<\/p>\n\n\n\n

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